Ode to the Chupacabra

Note: this is a technical article

(Goat is a mechanic by inclination, and profession, not to mention a dedicated tinkerer, so, please forgive any lapses into the incomprehensible jargon of the bike obsessed)

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As the regular visitors to this site are no doubt aware, there has lately been magic in the air, whiffs of melting bronze, tendrils of evaporating flux, and remnants of the arcane alchemy through which a bicycle is born. Since the snowy passes of Montana, a bike like no other has been slowly creating its self in my mind. Until — vision complete, it began to haunt me, whispering sweet nothings, and laughing as l pushed my bike through sand and snow. Eventually, it was clear that l would receive no respite until l took the final step: to make this monstrosity a reality.

I contacted Spencer Wright, chief alchemist of Traffic Cycles, and soon to be coconspirator. Fluent in the language of bikes, Spencer had no difficulty deciphering my cryptic and incoherent description, and quickly came to share my vision. The mythical creature of my imagination consumed him, and he put aside a myriad of obligations to bring it into the world.
We sketched, designed, and collaborated as the components began to pile up. Eventually, with the quirks finalized, I (isolated in flagstaff) returned to dreaming of effortless riding in sand and snow, and Spencer (faraway in Trukee) started melting metal.

It is difficult to describe something truly unique, for points of comparison are few, and technical jargon is of limited use. But with the aid of photographs, I hope my ramblings will attain some semblance of sense.

The Chupacabra is designed around it´s wheels. And indeed they are perhaps it´s most striking feature. Created by Surly Bikes for their ground-breaking, go-anywhere vehicle, the Pugsly (the Chupacabra´s closest relative). The wheels sport the widest rims, and largest tires on the market. Measuring almost 4� the “Endomorph� tires are twice the size of those on a normal mountain bike. Add this to the width of “Large Marge Rims� – more than twice the dimension of standard rims – and you have an enormous foot print. Allowing bikes so equipped, to traverse with ease sand snow and mud that would swallow a more conventional bike whole.

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Fitting wheels this large into a bike, is something of a logistical feat. In the front, the tires themselves are wider than a conventional front hub and thus incapable of fitting a normal fork. The solution to this problem is to use rear hubs (which are wider) for both wheels – which makes the wheels interchangeable. My “front� wheel caries a fixed-gear cog, and my “rear� is equipped with gears, so that depending on the placement of the wheels l can have two very different bikes.

In the rear, the width of the tire is so great that if the wheel is built normally (hub centered evenly) the chain would hit the tire and render the bike un-rideable. Surly´s solution (which we adopted for the Chupacabra) is to build the wheel “unevenly ‘’ with the hub offset 17.5mm towards the drive side. This means that in order to center the tire/wheel in the frame, both the rear triangle and front fork must be built to accommodate the offset.

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The Frame

The seeming lopsidedness created by the offset , is but the first of several unusual features of the Chupacabra frame. The frame is extra long, and equipped with mounts to fit Xtracycle bags and racks. Because it is one piece (rather than a bolt on extension like the Xtracycle kit) the rear end can be braced more effectively, creating a much stiffer, stronger, and more responsive bike. The rear rack support is further reinforced with heavy duty arch-like trussing which protects the vulnerable rear end, as well as keeping the bags from bulging in toward (and rubbing on) the disk brake and wheel.

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Aside from the length and width of the Chupacabra, its most striking feature is the chain, or rather chainS. Indeed, there are two, and they interface on an “extra� hub, which we call the “transfer point.� This transfer hub is in turn supported by an extra set of dropouts; in this case long horizontal (PAUL) track ends. The transfer hub is moved in these dropouts to adjust the tension of the rear chain; while the front chain is tensioned with an Eccentric Bottom Bracket (BB). (The BB is the bearings and spindle which connect the cranks to the bike and allows them to spin) In an Eccentric BB, the cranks are mounted off-center in an aluminum cylinder which can be rotated within the BB shell. By rotating the Eccentric BB, the cranks can be moved forward or backward, thus tensioning the chain. As clear as mud no doubt; but with all that elaborate designing to tension the chains….. why two chains?

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As usual the reason has to do with the wheels, whose hubs are offset, to allow the chain to clear the tire. For the chain to run straight (and not hit the wheel) the position of the front chain ring would have to match the offset, requiring, in theory, an exceptionally wide BB (which is exactly how Surly solves the problem on the Pugsly). The downside to a wide BB is that it increases the distance between the riders feet, known for reasons unknown as the “Q Factor�. A wide Q has a similar effect on rider comfort/fatigue as walking with one´s feet further apart than one´s shoulders (awkward and tiring), and not exactly ideal for a touring bike. Thanks to the extra length of the Chupacabra, this problem is solved by offsetting two chains on the transfer hub. The rear chain is set wide enough to clear the wheel, and the front chain set in enough to maintain a comfortable Q. The double chain has some side benefits as well. Two short chains, have considerably less sag/slop/play, than does one long chain. And the extra set of gears on the transfer hub allows me to manipulate gear ratios and run a much smaller chainring, increasing ground-obstacle clearance.

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In addition, the frame is customized to accommodate my body type and riding style. Which includes high handle-bars, low top tube (good crotch clearance) and the seat way back, to center my weight on the bike and put my legs in their preferred riding position (this is my dream bike after all).

Components

In addition to the Xtracycle bags and racks from my previous steed, l kept the Brooks Saddle (which, the leather having worn in nicely, fits me like a glove), my custom built H-Bars (which provide multiple hand positions, while keeping the wrists at a natural neutral angle), my stem and seat post . Everything else just wasn´t really applicable.

As usual, my choices are a little eccentric…
The cranks and BB are heavy duty steel, designed for BMX bikes, and arguably the strongest/stiffest/most durable on the market; made by Profile Racing. The pedals are my customary old road pedals with flip flops bolted on (Shimano 105´s this time around thanks to VO2Min from the Fixed Gear Gallery Forum). The “front� wheel has a Surly single speed disk hub with a fixed gear cog and an old-fashioned BB lock ring. After mucking about with a piece of junk made by the company now called Sturmey-Archer, the “rear� wheel is equipped with the legendary Rholoff speed hub. Truly a marvel of Tutonic Engineering, which manages to cram 14 internal gears, covering the normal range of a 27 speed bike, into a hub smaller than the SA 8-speed with which l first experimented.

I chose internal gearing, because of the nice tight chain – no derailleurs or slack – which resists freezing and clogging in snow and mud, and therefore less prone to wear and failure. The Rholoff advertising literature claims you can even ride it in ocean surf with no ill effects, and the only real downside (other than the price, which is prohibitively steep) is that it uses two cables, requiring some awkward routing, and their proprietary grip shifter.

These wheels, more or less require disk brakes, forcing me to overcome my luddite predispositions. I chose Avid mechanicals, being as far as l can tell, as simple and robust as possible with these finicky contraptions. So far l have no complaints, excellent stopping power and minimal fiddling required. But as with the rest of the beast, this assessment remains preliminary. It is after all a prototype – one of a kind.

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Thus far the Chupacabra has been everything l expected, and has served me well in all conditions. Even on pavement, where a skeptic might imagine that the larger tires would provide extra rolling resistance and slow us (The Chupacabra and I) down. On the contrary, we descend exponentially faster than the rest of the team, keep pace efficiently, and climb quite nimbly. Indeed the only thing l would change at this juncture is to add a short-travel suspension fork (like the FOX Vanilla we run on the rest of the bikes). While the massive tires do help, my wrists and arms take the brunt of absorbing rocks bumps and uneven terrain, which isn’t unbearable, and wouldn´t even be a problem, except that we ride all day, every day, and usually on rough terrain. But alas, no suspension fork exists that can handle these tires…..

In any case the Chupacabra is alive and well, and l can´t wait to try it in the snow.

31 thoughts on “Ode to the Chupacabra

  1. Brett says:

    Chupacabra,
    how pretty are your chains.
    how delicate your cables.
    how wonderous your forks.

    your dropouts drive me to distraction.
    your cogs my envious delight.

    stay strong you beautiful beast.

    Ride well

  2. Brett says:

    Chupacabra,
    how pretty are your chains.
    how delicate your cables.
    how wonderous your forks.

    your dropouts drive me to distraction.
    your cogs my envious delight.

    stay strong you beautiful beast.

    Ride well

  3. Brett says:

    Chupacabra,
    how pretty are your chains.
    how delicate your cables.
    how wonderous your forks.

    your dropouts drive me to distraction.
    your cogs my envious delight.

    stay strong you beautiful beast.

    Ride well

  4. Archie says:

    Great looking machine! Have any of the others tried it ? When can we see video of it in action ? Enjoying all the posts and photos… I’ve been watching since you started and salute you all. Stay healthy and travel safe.

  5. Archie says:

    Great looking machine! Have any of the others tried it ? When can we see video of it in action ? Enjoying all the posts and photos… I’ve been watching since you started and salute you all. Stay healthy and travel safe.

  6. Archie says:

    Great looking machine! Have any of the others tried it ? When can we see video of it in action ? Enjoying all the posts and photos… I’ve been watching since you started and salute you all. Stay healthy and travel safe.

  7. red says:

    great engineering!

    how much does the bike weigh? is that an issue for you?

    do you plan on having wide tires shipped or can you fit “normal” ones on the rims if necessary?

    have a great time (drink water!)

    red

  8. red says:

    great engineering!

    how much does the bike weigh? is that an issue for you?

    do you plan on having wide tires shipped or can you fit “normal” ones on the rims if necessary?

    have a great time (drink water!)

    red

  9. red says:

    great engineering!

    how much does the bike weigh? is that an issue for you?

    do you plan on having wide tires shipped or can you fit “normal” ones on the rims if necessary?

    have a great time (drink water!)

    red

  10. goat says:

    dont know what it weighs.. not much more than the other bikes
    and with all the stuff we cary– no importa

    l can run ´normal´ tires if nescessary, but l wil be having replacements shipped (when we do our 3000 mile, drivetrai and tire re-up)

    enjoy

    goat

  11. goat says:

    dont know what it weighs.. not much more than the other bikes
    and with all the stuff we cary– no importa

    l can run ´normal´ tires if nescessary, but l wil be having replacements shipped (when we do our 3000 mile, drivetrai and tire re-up)

    enjoy

    goat

  12. goat says:

    dont know what it weighs.. not much more than the other bikes
    and with all the stuff we cary– no importa

    l can run ´normal´ tires if nescessary, but l wil be having replacements shipped (when we do our 3000 mile, drivetrai and tire re-up)

    enjoy

    goat

  13. jenny says:

    goatimon,

    you are a poet of bike language…
    you are such a good writer… i have an idea maybe you could write all the time about eveyrthing!

    i love you goatimon, and gunpoint?

    love,
    jenny

  14. jenny says:

    goatimon,

    you are a poet of bike language…
    you are such a good writer… i have an idea maybe you could write all the time about eveyrthing!

    i love you goatimon, and gunpoint?

    love,
    jenny

  15. jenny says:

    goatimon,

    you are a poet of bike language…
    you are such a good writer… i have an idea maybe you could write all the time about eveyrthing!

    i love you goatimon, and gunpoint?

    love,
    jenny

  16. Brij says:

    Goat,

    Like Jenny says this is really well written. What an incredible monstrosity! I love your choices, rationale, scheme the whole bit. It all makes pretzel logic, situational sense. The Rholoff (spl?) is a stroke of evil genius. Will you ever use the fixed gear? I’m with you on a rigid fork, but sorry to hear you suffer a bit more.

    Always good to check up on you all–Rick Hunter seems to reference you on his blog (huntercycles.com see the description of the touring bikes under products). Future collaborations? Or even just beer drinking…

    Best of luck, I’ll keep reading. For the record: Which do you prefer–the freezing cold or the searing heat? (Just curious.)

    Brij

  17. Brij says:

    Goat,

    Like Jenny says this is really well written. What an incredible monstrosity! I love your choices, rationale, scheme the whole bit. It all makes pretzel logic, situational sense. The Rholoff (spl?) is a stroke of evil genius. Will you ever use the fixed gear? I’m with you on a rigid fork, but sorry to hear you suffer a bit more.

    Always good to check up on you all–Rick Hunter seems to reference you on his blog (huntercycles.com see the description of the touring bikes under products). Future collaborations? Or even just beer drinking…

    Best of luck, I’ll keep reading. For the record: Which do you prefer–the freezing cold or the searing heat? (Just curious.)

    Brij

  18. Brij says:

    Goat,

    Like Jenny says this is really well written. What an incredible monstrosity! I love your choices, rationale, scheme the whole bit. It all makes pretzel logic, situational sense. The Rholoff (spl?) is a stroke of evil genius. Will you ever use the fixed gear? I’m with you on a rigid fork, but sorry to hear you suffer a bit more.

    Always good to check up on you all–Rick Hunter seems to reference you on his blog (huntercycles.com see the description of the touring bikes under products). Future collaborations? Or even just beer drinking…

    Best of luck, I’ll keep reading. For the record: Which do you prefer–the freezing cold or the searing heat? (Just curious.)

    Brij

  19. Abby says:

    The Chupacabra??? Isn’t that a Goat-Eating Monster???

    The Santa Cruz/San Francisco Dance Contingency is rooting for you all.
    Enjoy the ride!

  20. Abby says:

    The Chupacabra??? Isn’t that a Goat-Eating Monster???

    The Santa Cruz/San Francisco Dance Contingency is rooting for you all.
    Enjoy the ride!

  21. Abby says:

    The Chupacabra??? Isn’t that a Goat-Eating Monster???

    The Santa Cruz/San Francisco Dance Contingency is rooting for you all.
    Enjoy the ride!

  22. gob says:

    Thanks for rocking our (Profile) Cranks. Let me know if you guys need anything…

  23. gob says:

    Thanks for rocking our (Profile) Cranks. Let me know if you guys need anything…

  24. gob says:

    Thanks for rocking our (Profile) Cranks. Let me know if you guys need anything…

  25. Josh says:

    Regarding the suspension fork that works with the Endomorphs – I have a Surly Pugsley that I ride on really rocky trails. I found that it wasn’t the upward bumps from the rocks killing my wrists – it was trying to keep the bars straight. So I put a Hopey steering damper on it and now it feels like I have a suspension fork – problem solved.

  26. Josh says:

    Regarding the suspension fork that works with the Endomorphs – I have a Surly Pugsley that I ride on really rocky trails. I found that it wasn’t the upward bumps from the rocks killing my wrists – it was trying to keep the bars straight. So I put a Hopey steering damper on it and now it feels like I have a suspension fork – problem solved.

  27. Josh says:

    Regarding the suspension fork that works with the Endomorphs – I have a Surly Pugsley that I ride on really rocky trails. I found that it wasn’t the upward bumps from the rocks killing my wrists – it was trying to keep the bars straight. So I put a Hopey steering damper on it and now it feels like I have a suspension fork – problem solved.

  28. uncle george,of goat says:

    It’s really cool that you can keep it togeather mentally,and no arguements big enough to break up the trip ,it’s a tough thing to do in that long of a period of time.Guess it’s all the interesting sites and things/people you meet and a really great friendship..great going.george

  29. uncle george,of goat says:

    It’s really cool that you can keep it togeather mentally,and no arguements big enough to break up the trip ,it’s a tough thing to do in that long of a period of time.Guess it’s all the interesting sites and things/people you meet and a really great friendship..great going.george

  30. uncle george,of goat says:

    It’s really cool that you can keep it togeather mentally,and no arguements big enough to break up the trip ,it’s a tough thing to do in that long of a period of time.Guess it’s all the interesting sites and things/people you meet and a really great friendship..great going.george

  31. steve says:

    Maybe you could hook up an extra set of cranks and take pedaling passengers. Nice bike.

  32. steve says:

    Maybe you could hook up an extra set of cranks and take pedaling passengers. Nice bike.

  33. steve says:

    Maybe you could hook up an extra set of cranks and take pedaling passengers. Nice bike.

  34. BAW says:

    A Brooks saddle? Tried ’em. No thanks; I might want kids someday.

  35. BAW says:

    A Brooks saddle? Tried ’em. No thanks; I might want kids someday.

  36. BAW says:

    A Brooks saddle? Tried ’em. No thanks; I might want kids someday.

  37. Ian Hopper says:

    Hey Goat… got yer postcard from south of the border: thanks for the message! I’m truly envious of your Chupacabra; it’s a beautiful bike, and oh for the love of god, the Rohloff just makes me crazy: if only they were cheaper! Stay safe, have fun, don’t get arrested anymore! 🙂 BTW, I love Brooks saddles: I have a B17, a B67 and a B66… they kick ASS. BAW must not have conditioned his correctly, though he makes no mention of what he didn’t like about it. No matter: those who know the quality and durability of Brooks saddles will ride almost nothing else.

  38. Ian Hopper says:

    Hey Goat… got yer postcard from south of the border: thanks for the message! I’m truly envious of your Chupacabra; it’s a beautiful bike, and oh for the love of god, the Rohloff just makes me crazy: if only they were cheaper! Stay safe, have fun, don’t get arrested anymore! 🙂 BTW, I love Brooks saddles: I have a B17, a B67 and a B66… they kick ASS. BAW must not have conditioned his correctly, though he makes no mention of what he didn’t like about it. No matter: those who know the quality and durability of Brooks saddles will ride almost nothing else.

  39. Ian Hopper says:

    Hey Goat… got yer postcard from south of the border: thanks for the message! I’m truly envious of your Chupacabra; it’s a beautiful bike, and oh for the love of god, the Rohloff just makes me crazy: if only they were cheaper! Stay safe, have fun, don’t get arrested anymore! 🙂 BTW, I love Brooks saddles: I have a B17, a B67 and a B66… they kick ASS. BAW must not have conditioned his correctly, though he makes no mention of what he didn’t like about it. No matter: those who know the quality and durability of Brooks saddles will ride almost nothing else.

  40. Allen says:

    For suspension fork compatibility, look no further than the Maverick SC32. Several pics on the snowbike threads on mtbr 🙂 Awesome bike you have put together!

  41. Allen says:

    For suspension fork compatibility, look no further than the Maverick SC32. Several pics on the snowbike threads on mtbr 🙂 Awesome bike you have put together!

  42. Allen says:

    For suspension fork compatibility, look no further than the Maverick SC32. Several pics on the snowbike threads on mtbr 🙂 Awesome bike you have put together!

  43. Chris says:

    Why don’t you get a dirt bike (motorbike) and simply add pedals to that? Then you’d get suspension, fat wheels, and everything else. I’m sure an angle grinder could trim it down to an acceptable weight.

  44. Chris says:

    Why don’t you get a dirt bike (motorbike) and simply add pedals to that? Then you’d get suspension, fat wheels, and everything else. I’m sure an angle grinder could trim it down to an acceptable weight.

  45. Chris says:

    Why don’t you get a dirt bike (motorbike) and simply add pedals to that? Then you’d get suspension, fat wheels, and everything else. I’m sure an angle grinder could trim it down to an acceptable weight.

  46. Mitch says:

    I am wondering if this bike can be made to accomodate and electric motor. i am handicapped and would like to haul my fishing pole down the beach as far as necessary, and this might be a good way to get there. if i can pedal it fine, but if i cant, it would be nice to have that electric motor.

  47. Mitch says:

    I am wondering if this bike can be made to accomodate and electric motor. i am handicapped and would like to haul my fishing pole down the beach as far as necessary, and this might be a good way to get there. if i can pedal it fine, but if i cant, it would be nice to have that electric motor.

  48. Mitch says:

    I am wondering if this bike can be made to accomodate and electric motor. i am handicapped and would like to haul my fishing pole down the beach as far as necessary, and this might be a good way to get there. if i can pedal it fine, but if i cant, it would be nice to have that electric motor.

  49. Darren Alff says:

    I too am curious about the weight. it looks like it weights a ton. It looks like it would be hard going uphill, but might be really good for riding in the snow, ice, etc.

  50. Darren Alff says:

    I too am curious about the weight. it looks like it weights a ton. It looks like it would be hard going uphill, but might be really good for riding in the snow, ice, etc.

  51. Darren Alff says:

    I too am curious about the weight. it looks like it weights a ton. It looks like it would be hard going uphill, but might be really good for riding in the snow, ice, etc.

  52. harydial says:

    G’day Goat….I was wondering if you want to pack the bike up and check in as a sports equipment in a plane trip do you need 2 bicycle boxes to box the chupacabra up?

    Well it’s an awesome bike…hope this prototype would be finalized for the general market.

  53. harydial says:

    G’day Goat….I was wondering if you want to pack the bike up and check in as a sports equipment in a plane trip do you need 2 bicycle boxes to box the chupacabra up?

    Well it’s an awesome bike…hope this prototype would be finalized for the general market.

  54. harydial says:

    G’day Goat….I was wondering if you want to pack the bike up and check in as a sports equipment in a plane trip do you need 2 bicycle boxes to box the chupacabra up?

    Well it’s an awesome bike…hope this prototype would be finalized for the general market.

  55. Mike Reyher says:

    You might try bars with more sweep or even dirt drops. I ride rigid all the time and having my hands in that position makes an incredible difference. The drops allow you to not have to really grip the bars. Soft hands, as they say. – Mike

  56. Mike Reyher says:

    You might try bars with more sweep or even dirt drops. I ride rigid all the time and having my hands in that position makes an incredible difference. The drops allow you to not have to really grip the bars. Soft hands, as they say. – Mike

  57. Mike Reyher says:

    You might try bars with more sweep or even dirt drops. I ride rigid all the time and having my hands in that position makes an incredible difference. The drops allow you to not have to really grip the bars. Soft hands, as they say. – Mike

  58. harydial says:

    Thanks for the piece of info Goat.
    Yeah I guess such a unique bike need to be custom made.
    BTW ever thought of using a rohloff since you guys are on dirt roads all the time?
    What about a schlumpf crank?

    Hope i can realized my dream of building a fat rubber bike with an extension of the big dummy…

    It’s been awesome following all your travels…traveling by dirt roads and at times no roads is the way to go…!

    Keep off roading,
    harydial

  59. harydial says:

    Thanks for the piece of info Goat.
    Yeah I guess such a unique bike need to be custom made.
    BTW ever thought of using a rohloff since you guys are on dirt roads all the time?
    What about a schlumpf crank?

    Hope i can realized my dream of building a fat rubber bike with an extension of the big dummy…

    It’s been awesome following all your travels…traveling by dirt roads and at times no roads is the way to go…!

    Keep off roading,
    harydial

  60. harydial says:

    Thanks for the piece of info Goat.
    Yeah I guess such a unique bike need to be custom made.
    BTW ever thought of using a rohloff since you guys are on dirt roads all the time?
    What about a schlumpf crank?

    Hope i can realized my dream of building a fat rubber bike with an extension of the big dummy…

    It’s been awesome following all your travels…traveling by dirt roads and at times no roads is the way to go…!

    Keep off roading,
    harydial

  61. harydial says:

    Thanks for the piece of link.
    Yeah Rohloff is a good investment on the bikes.

  62. harydial says:

    Thanks for the piece of link.
    Yeah Rohloff is a good investment on the bikes.

  63. harydial says:

    Thanks for the piece of link.
    Yeah Rohloff is a good investment on the bikes.

  64. harydial says:

    G’day Goat…I was thinking you mentioned if there was a front suspension that could fit the 3.7 endo on the chupacabra that would be great…..
    I notice from Mike Curiak snow bike by Moots he has a front suspension on his custom made fat bike bicycle…hmm probably its custom made for that bike as well just a thought..interesting….

  65. harydial says:

    G’day Goat…I was thinking you mentioned if there was a front suspension that could fit the 3.7 endo on the chupacabra that would be great…..
    I notice from Mike Curiak snow bike by Moots he has a front suspension on his custom made fat bike bicycle…hmm probably its custom made for that bike as well just a thought..interesting….

  66. harydial says:

    G’day Goat…I was thinking you mentioned if there was a front suspension that could fit the 3.7 endo on the chupacabra that would be great…..
    I notice from Mike Curiak snow bike by Moots he has a front suspension on his custom made fat bike bicycle…hmm probably its custom made for that bike as well just a thought..interesting….

  67. harydial says:

    G’day Goat…I have another question that you would know.
    With the tyres you are running I understand is a 26 wheels.
    However when you put the endomorphs into the wheels, can it be considered as a 29er because of the thick side wall of the endo….

    So that is to say it has the properties of a 29er although the wheels are a 26…

    Hope I am making sense and correct my thoughts if its wrong…Thanks mate.

  68. harydial says:

    G’day Goat…I have another question that you would know.
    With the tyres you are running I understand is a 26 wheels.
    However when you put the endomorphs into the wheels, can it be considered as a 29er because of the thick side wall of the endo….

    So that is to say it has the properties of a 29er although the wheels are a 26…

    Hope I am making sense and correct my thoughts if its wrong…Thanks mate.

  69. harydial says:

    G’day Goat…I have another question that you would know.
    With the tyres you are running I understand is a 26 wheels.
    However when you put the endomorphs into the wheels, can it be considered as a 29er because of the thick side wall of the endo….

    So that is to say it has the properties of a 29er although the wheels are a 26…

    Hope I am making sense and correct my thoughts if its wrong…Thanks mate.

  70. Col says:

    Hi Goat,

    Excellent prototype in the Chupacabra. Seeems Xtracycle compatible in the back-end, too? Have you thought of making the frame design open-source, like Xtracyle?

    Your trip “Riding the Spine” is an inspiration. Keep on trucking. 🙂

    Col from Down-Under.

  71. Col says:

    Hi Goat,

    Excellent prototype in the Chupacabra. Seeems Xtracycle compatible in the back-end, too? Have you thought of making the frame design open-source, like Xtracyle?

    Your trip “Riding the Spine” is an inspiration. Keep on trucking. 🙂

    Col from Down-Under.

  72. Col says:

    Hi Goat,

    Excellent prototype in the Chupacabra. Seeems Xtracycle compatible in the back-end, too? Have you thought of making the frame design open-source, like Xtracyle?

    Your trip “Riding the Spine” is an inspiration. Keep on trucking. 🙂

    Col from Down-Under.

  73. Everett says:

    Wow. I think my Big Dummy is a little jealous. I love it. Ihave put 1200 miles on the big dummy and love it. I would love a chupacabra. Go Goat.

  74. Everett says:

    Wow. I think my Big Dummy is a little jealous. I love it. Ihave put 1200 miles on the big dummy and love it. I would love a chupacabra. Go Goat.

  75. Everett says:

    Wow. I think my Big Dummy is a little jealous. I love it. Ihave put 1200 miles on the big dummy and love it. I would love a chupacabra. Go Goat.

  76. Michael says:

    Hi Goat

    What to say I watch riding the spine over and over just to see the Chupacabra I have been wanting something the same as that so I got an xtracycle but still not satisfied so I will cop an dice what I have and come out with my Barkingdingo inspired by you and your Chupacbra dont worry I wont cope your bike I want my own still just wanting to say your an inspiration to longtails keep up the good work. .

  77. Michael says:

    Hi Goat

    What to say I watch riding the spine over and over just to see the Chupacabra I have been wanting something the same as that so I got an xtracycle but still not satisfied so I will cop an dice what I have and come out with my Barkingdingo inspired by you and your Chupacbra dont worry I wont cope your bike I want my own still just wanting to say your an inspiration to longtails keep up the good work. .

  78. Michael says:

    Hi Goat

    What to say I watch riding the spine over and over just to see the Chupacabra I have been wanting something the same as that so I got an xtracycle but still not satisfied so I will cop an dice what I have and come out with my Barkingdingo inspired by you and your Chupacbra dont worry I wont cope your bike I want my own still just wanting to say your an inspiration to longtails keep up the good work. .

  79. MartinM says:

    Hey Goat!

    Quite a journey you guys made 🙂
    Beautiful!

    I’m soon to embark on a long journey on a Pugsley. One of my main worries is the longevity of the Endo’s/Larry tires.
    How many miles/km did you get before they where due for replacement? I will be traveling 10.000 km during the winter on snow and ice covered tarmac and gravel, mostly gravel. The temperatures ranging from freezing to minus 40F.
    I’m trying to estimate how many tire drops i need to make!

    Cheers, Martin

  80. MartinM says:

    Hey Goat!

    Quite a journey you guys made 🙂
    Beautiful!

    I’m soon to embark on a long journey on a Pugsley. One of my main worries is the longevity of the Endo’s/Larry tires.
    How many miles/km did you get before they where due for replacement? I will be traveling 10.000 km during the winter on snow and ice covered tarmac and gravel, mostly gravel. The temperatures ranging from freezing to minus 40F.
    I’m trying to estimate how many tire drops i need to make!

    Cheers, Martin

  81. MartinM says:

    Hey Goat!

    Quite a journey you guys made 🙂
    Beautiful!

    I’m soon to embark on a long journey on a Pugsley. One of my main worries is the longevity of the Endo’s/Larry tires.
    How many miles/km did you get before they where due for replacement? I will be traveling 10.000 km during the winter on snow and ice covered tarmac and gravel, mostly gravel. The temperatures ranging from freezing to minus 40F.
    I’m trying to estimate how many tire drops i need to make!

    Cheers, Martin

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