Join Date: Oct 2005
Bikes: Marin mtb turned tri turned commuter turned singlespeed, Haro Werks 2.0, Specialized Epic Allez carbon main tube built up for triathlons
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I feel your pain of being too slow on the road. I changed my chainrings up a bit before I eventually turned my mtb into a single speed. I found a 46T chainring for my shimano compact (94 bcd?) cranks. Then again, that was a big jump for me since I was going from 42/11 to 46/11. I'm thinking that if you can find a 48T ring it might be worthwhile, otherwise only going up 2 teeth probably won't be enough of a change. If you can find a way to fit an 11T cog on, I think that would be the best solution. Wouldn't the 11 give the chain more room compared to the 12? If not, would it be possible to put something like a 1mm space on the axle and spread the frame a touch for more room? I'm assuming it's a steel bike, so that shouldn't be a problem. Someone please let me know if that's a stupid idea, and if so, why.
As for the wheel idea, can you even fit 700 wheels? MTBs wheels that large are called 29" instead of 26", so you'd probably have trouble with frame clearance and brake mounting.