DCBassman
Guru
- Location
- The lumpy far South West
Perzakkly. Not enough chain wrap without going to a long cage derailleur, I think.
Then if your front chainrings are 50+39+30 like current Scotts, I reckon http://gear-calculator.com/?GR=DERS...15,17,19,21,23,25&UF=2135&TF=90&SL=2.6&UN=KMH is your gearing, giving a range of 32.1 to 111 gear inches. If you could get 27T in the rear, bottom gear drops to 29.7 inches, or if you can get 32T there, it would be about 25 inches, only slightly higher than the notorious two foot gear
Maybe it might be easier to change the chain and cassette for identical new items, then change out that Ritchey 52-42-30 for a Shimano Acera FC-M361 with 48-38-28T. Does seem a relatively inexpensive way to drop the gearing just that little bit...