I wanted to see if anyone has tried to build up a "road" bike on a mtn frame. Will the cantilever mounts work with 700c? I sold my cyclocross bike last year and now I'm regretting it. I just want to build up something super-cheap with a single speed, but I don't want to fork out $300+ for a cross frame and make this project into a money pit. Nashbar makes a cheap cross frame, but I can probably find a mtn frame for even cheaper.
joeball
Posted: Mon Jul 24, 2006 12:46 pm
Joined: 24 Jul 2005Posts: 6037Location: Ether
It's not worth it. I tried once and ended up with the strangest riding bike I have ever felt.
I had a rigid trek mtn frame and put a 700c fork on. I had to grind away on the little bridge between the chainstays to clear a cross tire in the rear. The main problem is that the BB gets much higher with the larger wheels. I did not like the feel as the bike felt very unstable,
The cantis can be made to work but considering the change in geometry I don't think it is worth it.
There are not many canties that will work with 700c wheels on posts mounted for a 26" one type is ONZA HO's, these are retro CNC'd bits from back in the early mtn biking days and can be found on ebay for about 50$. Or Paul motobmx's brakes
http://www.paulcomp.com/
the dreaded ben
Posted: Mon Jul 24, 2006 12:50 pm
Grumpy GreebJoined: 20 Aug 2005Posts: 5329Location: flavor country
no. no. no.
buy a 29er or a cyclocross frame if you want 700's.
if you fuck around enough to build a mtb with 700's it's gonna ride like dump truck full of children flipping end over end down a cliff on fire.
joeball
Posted: Mon Jul 24, 2006 1:08 pm
Joined: 24 Jul 2005Posts: 6037Location: Ether
What is the intended use of your final project?
SS for on the road or for actually using it to go off road and using nobbie tire?
If the former then don't worry about cantis, run caliper brakes on an old steel road frame made for 27". You can get them in the free to $30 range.
The later may be harder to do on the cheap. finding old steel frames with canti posts for 700c wheel is a bit harder. The the canti posts on frames designed for 27" wheels are too high to be used with 700c wheels
what size frame are you looking for? I have a steel Trek 57cm that I may sell for pretty cheap, you would need to run a tensioner or magic combination though because it has vertical dropouts
martin
Posted: Mon Jul 24, 2006 2:00 pm
Joined: 30 Jan 2006Posts: 712
joeball wrote:
What is the intended use of your final project?
SS for on the road or for actually using it to go off road and using nobbie tire?
If the former then don't worry about cantis, run caliper brakes on an old steel road frame made for 27". You can get them in the free to $30 range.
The later may be harder to do on the cheap. finding old steel frames with canti posts for 700c wheel is a bit harder. The the canti posts on frames designed for 27" wheels are too high to be used with 700c wheels
what size frame are you looking for? I have a steel Trek 57cm that I may sell for pretty cheap, you would need to run a tensioner or magic combination though because it has vertical dropouts
Thanks - thought I'd run it past the class. I live about .5mi from St. Edwards and I missed being able to go kick around in there when I want so it would be a "to the store/cyclocross trail bike". I definitely prefer a cross bike to a true mtn bike - I just can't get used to that upright position.
I figured I could put together a single speed pretty quickly for not too much. 57 might work actually. I rode a 59 on my old cross frame.
joeball
Posted: Mon Jul 24, 2006 2:10 pm
Joined: 24 Jul 2005Posts: 6037Location: Ether
If you want it, I'll sell the frame/fork/headset and seatpost for 30$
That is how much the new seatpost and binder bolt cost (they were a less common size 26.2 or something)
Size wise it runs big. I am 6' and with some big 700x35 tires there was less than an inch of stand over clearance for me.
martin
Posted: Mon Jul 24, 2006 2:13 pm
Joined: 30 Jan 2006Posts: 712
joeball wrote:
If you want it, I'll sell the frame/fork/headset and seatpost for 30$
That is how much the new seatpost and binder bolt cost (they were a less common size 26.2 or something)
Size wise it runs big. I am 6' and with some big 700x35 tires there was less than an inch of stand over clearance for me.
Sounds too good to pass up. I'm 6'3", but considering how low my road bike position is - it'll do fine. .
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Grumpy Greeb
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