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mtb frame to 700cc(8 posts)

mtb frame to 700ccmikebdiddy
Sep 16, 2003 7:13 PM
i may be wrong but i thought i saw this discussion here.

i have a brew mtb 1" steerer frame, it's awesome on rolling singletrack, but have replaced it with a salsa caballero. i put a cyclocross wheel in the rear, and it looks like it's fine( no brakes on it,so hard to tell what the deal is-what about a fork-suspension corrected or a cyclocross fork??--will this even work-I don't know-any help would be appreciated. tx mb
Rear brake is the biggest problem...PT
Sep 17, 2003 6:23 AM
The brake studs on the rear of a mtb frame designed for 26" wheels are not positioned appropriately for a 700C wheel. My neighbor and I built up his old Bridgestone MB1 frame with 700C wheels and circumvented this problem by using an Avid Tri-align rear canti brake -- it has long posts that allowed us to push the pads higher up so that they would contact a 700c rim correctly. The brake doesn't work too well (the pads are too far from the canti studs to apply much force to the rim), but there is some slowing effect. The MB1 was pre-suspension so it was easy to just toss on a standard cyclocross fork.

If anyone has an alternative way to deal with the positioning of the rear brake on an mtb frame so that it can be appropriately positioned for the larger 700c wheel, I would love to hear about it...
Rear brake is the biggest problem...MShaw
Sep 17, 2003 6:43 AM
There's two options:
1. re-braze the canti studs
2. run discs

Mike
solutionmikesee
Sep 17, 2003 11:45 AM
Paul components makes a brake that's specifically sized Z(longer arms) for using 26" brake posts to convert to a 700c wheel. Tire size is limited (you can't run 29" with it) but I think you could probably get away with a 700x40. I'm not positive on the name of the brake, but it's about $90, and the site is www.paulcomp.com

MC
Easier solution : search this board for "Ultech" adapters NMJan Gerrit Klok
Sep 18, 2003 10:36 AM
Virtually no info from search, and I don't read Dutch...PT
Sep 18, 2003 1:09 PM
(at least I think it's Dutch) which seems to be required for the one link I found.

So, it doesn't appear to be an "easier solution" for me...
Virtually no info from search, and I don't read Dutch...Jan Gerrit Klok
Sep 24, 2003 10:13 PM
If you end up at www.Bike2Build.nl where I got mine, try hitting the Union Jack in the upper right, it helps :-)
Centerpullsbk19
Sep 18, 2003 6:34 AM
Another option is old long arm centerpull brakes. Just mount them to the seatstay bridge where a reflector or fender mount would go. Braking may not be the strongest, but it should be decent enough for most cross courses and for road riding/commuting.