Shimano sora 3503 triple 9sp band on front mechdoubletriple fd compatible with cross and wide ratio csfeatures cassette compatibility 9 top gear teeth 50t maximum capacity 20t link bushing conventional spring cover chainstay angle mounting clamp band chain line 45mma 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products buy shimano components from chain reaction cycles the worlds largest online bike store