Dahon Folding Gravel Bike GB-2
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The geometry of a real gravel bike (original concept, nowadays any offroad bike without suspension is called "gravel") is very different from the geometry of a MTB. The position on the bike is also very different.
Its close to the geometry and position of a cyclocross bike (for those who don't know, Cyclocross is an official UCI discipline) and closer to a long distance road bike than to a MTB bike.
Its close to the geometry and position of a cyclocross bike (for those who don't know, Cyclocross is an official UCI discipline) and closer to a long distance road bike than to a MTB bike.
#27
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As long as I'm happy with it, it's a "gravel bike"... I know all about cyclocross. Great sport.
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A drop-bar conversion of a cheap Dahon Espresso would get you 90% of the way there for considerably less expense. There are fast-rolling ‘gravel’ tyres for a 26 inch rim available.
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Its not only about a drop bar, if the frame of this GB-2 is a real gravel frame, i.e. close to a cyclocross frame, its a different frame geometry that creates a different bike behavior.
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Here's another bike I own that would work as a gravel bike. A gravel bike is what I decide is a gravel bike for ME.
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The geometry of a real gravel bike (original concept, nowadays any offroad bike without suspension is called "gravel") is very different from the geometry of a MTB. The position on the bike is also very different.
Its close to the geometry and position of a cyclocross bike (for those who don't know, Cyclocross is an official UCI discipline) and closer to a long distance road bike than to a MTB bike.
Its close to the geometry and position of a cyclocross bike (for those who don't know, Cyclocross is an official UCI discipline) and closer to a long distance road bike than to a MTB bike.
They’ve taken a standard Cadenza and just set it up with drops and gravel tyres.
you could do the same with an Espresso, a Tern Joe, a Matrix. Heck even a Tern Node would work!
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Compared to CX, Gravel bikes tend to be 10mm shorter on effective top tube and 10mm higher on the stack with 1 to 1.5deg extra slack on the head tube and BB tend to be 5 to 10mm lower. This allow a more upright position with more "caster" hence a more stable steering.
MTBs are 1.5deg slacker but older mtb used to have headset angle very close to modern gravel bikes.
That is the theory but , it is possible to convert a 2000's MTB or large clearance hybrid into a descent gravel bike by fitting a set of dropbars with a shorter +6deg stem (compared to road stem) to bring the upperbody towards the saddle. Then, something with 42 to 50mm wide tyres and more importantly, a modern groupset with a 1X, clutch derailleur and a wide range cassette.
From there, it is pretty capable and versatile.
MTBs are 1.5deg slacker but older mtb used to have headset angle very close to modern gravel bikes.
That is the theory but , it is possible to convert a 2000's MTB or large clearance hybrid into a descent gravel bike by fitting a set of dropbars with a shorter +6deg stem (compared to road stem) to bring the upperbody towards the saddle. Then, something with 42 to 50mm wide tyres and more importantly, a modern groupset with a 1X, clutch derailleur and a wide range cassette.
From there, it is pretty capable and versatile.
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#36
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Wondering where you draw that conclusion from.
https://dahon.com/bikes/cadenza-p18/
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Umm - where do you see that? The cadenza is a 26" bike with a very different looking frame, even if you'd add a different tread and drop bars.
Wondering where you draw that conclusion from.
https://dahon.com/bikes/cadenza-p18/
Wondering where you draw that conclusion from.
https://dahon.com/bikes/cadenza-p18/
Anyway I hope it makes riders very happy; there’s obviously a significant market for ‘gravel’ bikes and perhaps a niche within that for folding gravel bikes.
Now, if you’ll excuse me, I’m off to ride some gravel farm trails near me here in Frankfurt on this:
#38
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It's even on decathlon Hongkong from a vendor which is not decathlon though.
For a mere 800bucks.
https://www.decathlon.com.hk/en/p/mp...a-04b69e517a43
Also on carousel.sg etc.
Are there any parcel forwarding companies for those countries to Europe?
For a mere 800bucks.
https://www.decathlon.com.hk/en/p/mp...a-04b69e517a43
Also on carousel.sg etc.
Are there any parcel forwarding companies for those countries to Europe?
#39
iti biking
Dahon NZ has reappeared recently and their website says they have a couple of GB-2 bikes in stock for 2000NZD each including our local sales tax. See if they’ll ship to you from Christchurch?
#40
Newbie
Thanks for the heads-up!
That's interesting that it appeared on an official dahon branch!
Shipping from NZ is probably the most distant open, but I'll definitely have a look!
Also found some package forwarding services that cover Hongkong and Singapore, need to have a deeper look if that would also encompass bike-sized shipments...
That's interesting that it appeared on an official dahon branch!
Shipping from NZ is probably the most distant open, but I'll definitely have a look!
Also found some package forwarding services that cover Hongkong and Singapore, need to have a deeper look if that would also encompass bike-sized shipments...
#41
Newbie
Got some measurements from NZ. Any take from the geometry experts?
Dahon is also checking for geometry data meanwhile...
After telling me, it's not on the market yet, they are now stating it's on the market in NZ, Hong Kong and Thailand.
If anyone has a tip for a packaging forwarding company for any of those...
Dahon is also checking for geometry data meanwhile...
After telling me, it's not on the market yet, they are now stating it's on the market in NZ, Hong Kong and Thailand.
If anyone has a tip for a packaging forwarding company for any of those...
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#45
iti biking
Got some measurements from NZ. Any take from the geometry experts?
Dahon is also checking for geometry data meanwhile...
After telling me, it's not on the market yet, they are now stating it's on the market in NZ, Hong Kong and Thailand.
If anyone has a tip for a packaging forwarding company for any of those...
Dahon is also checking for geometry data meanwhile...
After telling me, it's not on the market yet, they are now stating it's on the market in NZ, Hong Kong and Thailand.
If anyone has a tip for a packaging forwarding company for any of those...
#46
Newbie
You did read the thread, realising it's not available pretty much everywhere?
Plus - meanwhile having at least a quick look at actual dimensions of a bike that no-one has ever seen live can't hurt it'd say?
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#47
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Got some measurements from NZ. Any take from the geometry experts?
Dahon is also checking for geometry data meanwhile...
After telling me, it's not on the market yet, they are now stating it's on the market in NZ, Hong Kong and Thailand.
If anyone has a tip for a packaging forwarding company for any of those...
Dahon is also checking for geometry data meanwhile...
After telling me, it's not on the market yet, they are now stating it's on the market in NZ, Hong Kong and Thailand.
If anyone has a tip for a packaging forwarding company for any of those...
For comparison, Dahon provided geometry data as well now:
Top Tube Length 487.6MM
Seat Tube Length 470.4MM
Head Tube Angle 71°
Standover 675MM
Wheelbase 1031.8MM
Chainstay Length 430
BB Height 265MM
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#49
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