- Prevents chain derailment when shifting to inner ring - Adjustable hose-type clamp fits 1-1/8" to 1-3/8" seat tubes
Shimano's 105 Clamp-On Front Derailleur sports a cold forged-aluminum body with Shimano's extra wide-pivot design for lightning-quick and super-smooth shifts. The steel cage ensures excellent durability.
Shimano's Tiagra Front Derailleur provides quick shifting. The clear-coated aluminum body and plated-steel cage are extra durable so you can enjoy smooth shifts mile after mile.
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