Cantilever Post Adapter - 650B to 700C - on a Velo Orange Polyvalent
#1
Cantilever Post Adapter - 650B to 700C - on a Velo Orange Polyvalent
I am trying to find a product that I know exists but I can't find. It is a Cantilever Post Adapter than screws into the original post holes and allows you to move them up about a 1/2". I want to modift my 650B frame to run 700C road wheels with 28c tires. The frame is a Velo Orange Polyvalent designed for 650B large volume tires.
I have seen these adapters for about $25 online (thought they were Paul Comp. or Problem Solvers), but was wrong. Does anyone have a link to these?
the frame: Polyvalent MK3 Frame and Fork (which I want to be able to adapt back to large volume 650B in the future).
I have seen these adapters for about $25 online (thought they were Paul Comp. or Problem Solvers), but was wrong. Does anyone have a link to these?
the frame: Polyvalent MK3 Frame and Fork (which I want to be able to adapt back to large volume 650B in the future).
#2
Cottered Crank
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I am trying to find a product that I know exists but I can't find. It is a Cantilever Post Adapter than screws into the original post holes and allows you to move them up about a 1/2". I want to modift my 650B frame to run 700C road wheels with 28c tires. The frame is a Velo Orange Polyvalent designed for 650B large volume tires.
I have seen these adapters for about $25 online (thought they were Paul Comp. or Problem Solvers), but was wrong. Does anyone have a link to these?
the frame: Polyvalent MK3 Frame and Fork (which I want to be able to adapt back to large volume 650B in the future).
I have seen these adapters for about $25 online (thought they were Paul Comp. or Problem Solvers), but was wrong. Does anyone have a link to these?
the frame: Polyvalent MK3 Frame and Fork (which I want to be able to adapt back to large volume 650B in the future).
#4
Cottered Crank
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Most newer-style cantilevers don't use post-type brake pads any more. That's pretty old-school. Those pad would work perfectly fine on modern cantis. I'm using Dura padholders on my Avid Shorties. They work great.
#5
Good luck getting your mod to work... but what are you hoping to accomplish?
#6
#8
I understand that you want to fit 700c wheels, but what difference are you hoping to realize in actual riding? Why not get a second set of 650b wheels with narrower tires?
#9
The frame would ride too low. I run 180mm cranks. The diameter of 650c wheels with 50c tires is almost identical to 700c with 28c tires.
#10
I also ride 180mm cranks and ride a touring bike that is most comfortable on 38mm tires (as VO says your frame is), but it has no problem on 28 mm tires.
Anyhoo, post pics when you are done. I bet it will be killer!
Anyhoo, post pics when you are done. I bet it will be killer!
#11
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I'd be a bit concerned with a boss adapter. Having not seen them I'd want to feel completely confident that they would handle the forces of braking properly.
But would the frame allow for caliper brakes when 700c was in use? Really the simplest choice is what Wilfred said. Andy.
But would the frame allow for caliper brakes when 700c was in use? Really the simplest choice is what Wilfred said. Andy.
#12
Nigel
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Erik, this is what you are looking for: ELEVN RACING | Brake Adaptators
See: https://www.bikeforums.net/classic-vi...onversion.html for more info and sources.
They are beefy and will have no trouble with braking loads.
See: https://www.bikeforums.net/classic-vi...onversion.html for more info and sources.
They are beefy and will have no trouble with braking loads.
#13
Thanks - that is what I need!
Erik, this is what you are looking for: ELEVN RACING | Brake Adaptators
See: https://www.bikeforums.net/classic-vi...onversion.html for more info and sources.
They are beefy and will have no trouble with braking loads.
See: https://www.bikeforums.net/classic-vi...onversion.html for more info and sources.
They are beefy and will have no trouble with braking loads.
#14
Disco Infiltrator
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Erik, this is what you are looking for: ELEVN RACING | Brake Adaptators
See: https://www.bikeforums.net/classic-vi...onversion.html for more info and sources.
They are beefy and will have no trouble with braking loads.
See: https://www.bikeforums.net/classic-vi...onversion.html for more info and sources.
They are beefy and will have no trouble with braking loads.
I wonder why they made it out of aluminum.
If you were starting from scratch I still think the disk frame idea is better.
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#15
Nigel
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A LOT less expensive to machine, less expensive to provide a very nice hard finish on (hard black anodize), and less expensive to laser mark the graphics. It is a very thick part, so b*h cubed comes in to play, provide plenty of strength.
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