Clamp-on: 1-1/4" (31.8mm)
Weight: 118 g.
If you're looking for beefy stealth, consider the XX front derailleur which shifts across the entire gearing range with near nil chain rub and a granny gear that can be cross-chained within one or two cogs without cage rub. Steel cage with parallelogram arms forged in aluminum. Thin, flexible clamp is lightweight and conforms easily to non-round tubes. The return-spring tension is boosted to force crisp direct-mount frame interfaces and in high and low-pull cable configurations. Shorter than a triple-specific front derailleur and narrower than front derailleurs made for nine-speeds in back, the XX High Clamp is great news for those who fear clearance between their rear suspension and their front derailleur. Lightning fast two-chainring derailleur is designed from scratch specifically for 2x10.