Shimano dura ace 7700 9sp downtube shifter setprecision engineered dura ace 9 speed index downtube braze on shift levers superior dura ace quality means reliability and durability featuresfor braze on downtube mountfully compatible with mega9 precision 9 speed drivetrainclear coated aluminium finishcan be used with double or triple chainsetssis indexed system compatibleweight 76ga 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr prod