Originally Posted by
notwist
Does anyone have experience with the SRAM WiFli rear derailleurs? My bike currently has 2011(?) SRAM Force. Would I need to replace anything else other than the derailleur itself?
I'm planning on doing Catkills (and some other hilly RRs) and was thinking buying a long cage derailleur and 11-32 cassette might be easier/cheaper than buying a completely new crank. Plus, i'd like to have the power numbers from my Quarq to look at. It's a 130bcd so my chainring options are limited.
why not get a Sram VIA GT and run a 11/36t cassette? It's in the style of a road derailleur, so you won't have to worry about the lack of barrel adjusters, etc
fwiw, I'm running a 50/34t
and a 11/36t for a race this weekend. Last time i did the race i was doing 75 rpm avg on a 34x28t, with quite a few minutes bogged down to 65 rpm at 4.65 w/kg for the particular section and 4.25 w/kg FTP. Having a 36t would allow me to spin up at my normal climbing cadence of 90-100 rpm, and the worst section would be 85 rpm, assuming the same w/kg.