Joined: Oct 2014
Posts: 1,726
Likes: 1
From: Northern San Diego
Bikes: mid 1980s De Rosa SL, 1985 Tommasini Super Prestige all Campy SR, 1992 Paramount PDG Series 7, 1997 Lemond Zurich, 1998 Trek Y-foil, 2006 Schwinn Super Sport GS, 2006 Specialized Hardrock Sport
On one of my bikes, I'm running that Sora RD on a 12-26 rear, and 51-39-29 triple in the back, and I don't think I'm close to capacity in terms of chain slack take up. Based on that, I'd say the front spread is not an issue, but it's possible the rear cassette is one tooth too big. But there's generally some conservatism in the way these things are spec'd, so it's probably going to work fine.
Last edited by D1andonlyDman; 05-17-15 at 06:25 PM.