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Old 08-13-09, 09:33 AM   #1
corkscrew
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A few Q's - buying parts for homegrown xtracycle.

Hi all - its payday so its time to buy some parts for my xtracycle build.

Q's-

Brakes - will Avid FR5 levers work with both V brakes and Canti-levers?

Chain - Drive train is a 7 speed rear cassette with triple biopace rings up front. The biopace rings say "Use Narrow chain only" on a little label. Will the 7/8 speed shimano HG70 chain(s) work for this? Is there a cheaper alternative since this isn't a brand new drive train?

Thanks guys.
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Old 08-13-09, 09:50 AM   #2
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brakes -will work only with v-brakes.the chain will work for you.
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Old 08-13-09, 10:59 AM   #3
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V-brakes and (traditional) cantilevers require different pull ratios. No lever will provide both.


Any HG 6/7/8-speed chain will work. Yes there are cheaper alternatives.


Measure your old chain. If it's way worn, you might not want to change it unless you can afford a new rear cluster at the same time. New chain + worn cluster = bad juju.


If at some point in the future you want to upgrade/replace the Biopace crankset or rings, remember that they may have substantial value on eBay. People want them.
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Old 08-13-09, 01:44 PM   #4
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Thanks guys.

I'm building a home brew xtracycle (thread is here: My "I'm building a home grown xtra-cycle!" thread.). So I need two chains, thus why I'm not reusing the original. (Also none of the cassette rings look terribly worn, nor do the biopace ones) But I picked up two SRAM 6/7/8 speed chains @ the LBS @ lunch, for $18/each.

After work its a trip to REI for new brakes. OEM parts are chincy plastic 200GS levers, and I need to run a V-brake in the back. Thinking I might as well upgrade the front to V's as well, since I don't really want mis-matching levers.

I actually am rather happy to have the Biopace rings. Scored the bike @ a thrift store for $12 just because of those. Won't get rid of them unless I absolutley end up hating them.
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Old 08-13-09, 02:00 PM   #5
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Upgrade? Some people might argue with that choice of wording.

Why do you need a V-brake in the rear? Just about any cantilever will mount to those posts. (V-brakes are cantilevers, which is why one uses the term "traditional cantilever" to distinguish from V-brake.)
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Old 08-13-09, 02:14 PM   #6
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The rear FS triangle I'm using doesn't have a cable stop point centered to use cantis. It does however have the a side mount cable stop to run V brakes. Figured I'd work with what was on the frame. Also meant upgrade in the terms of new brakes, vs the 1996 shimano cantis with aged pads.

Changing to V's in the front would only be so I don't need mis-matched levers.

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