Building up an older bike for cx. Last year I ran a 36/46 chainring set, and a 7 speed 14/28 freewheel.
This year I think I will just put a compact crankset on so it will be a bit better for road riding, then just use the 34 while doing singletrack, or dirt/grass type stuff.
My question is what 8 speed cassette do you think I should go with? I really don't need anything with an 11 on it, a 12 is still pushing it unless in a paceline on the road. But with a cassette I can get a 30 or 32 big cog and not sure which I would like best. Last year there were only a handful of times I would've liked a lower gear than my 36/28. Some was on mnt bike singletrack, and the real killer was a long gradual rise with tall grass on the last race coarse I was at.
With an 11 or 12 at the top of your cassette, that 46T chainring would be plenty tall. Speaking just for myself, I hate the big gap in 50/34 compacts, and I think I'd hate it even more in critical situations.
Originally Posted by chandltp
There's no such thing as too far.. just lack of time
The big ring would be for road use only, and the 34 (or 36) for dirt use only and a downtube shifter for the front. I suppose it would be easy enough to find a decent 36/46 just as it would a compact.
Not sure if my RD would work or not, need to look into things more. Guess I should look up a gear chart and see what I had last year, and what I think I want this year compared to the stuff I already have sitting in boxes.
Yes, the 46 was good last year even with the 14 for any of the racing I did, which only one coarse had a spot that was long enough to warrant shifting anyhow. So time to go back to thinking I guess. Putting together a bike right now for the wife, and using my last years cx crankset on it.. so might have to tear it apart come fall or find a new one. That's really why I was curious about just using a compact.