Shimano 105 ST-R7120 12 Speed Shifter + Flat Mount Caliper Size:Left Shifter / Rear Brake the extreme toughness and abrasion

the extreme toughness and abrasion resistance of 6Al/4V titanium means that you can expect 300-400% wear life compared to traditional materials

Features2-PIECE CRANKSET increases rigidity of crankset with less weight and transmits pedaling force efficientlySpecial gear tip shape improves chain engagement and retention for smooth riding over rough terrainSpecificationsRear speeds 11/10/9Compatible chain LINKGLIDE

Built-in clip holds tool pieces together

The dual pivot design also accounts for wider road tires without compromising braking power

our new mk2 tubeless valves are now compatible with all rim inserts and come with a spoke key cap as well as a valve core removal cap

Shimano 105 ST-R7120 12 Speed Shifter + Flat Mount Caliper Size:Left Shifter / Rear Brake the extreme toughness and abrasionThe 105 disc brake combines BR R7170 caliper and ST R7120 shift brake lever for 2x or 12 speed shifting. It has 10% more pad clearance for quieter braking, plus powerful and controllable deceleration. One Way Bleeding makes it easy to maintain. The two piece aluminium caliper is light and fits any bike. The ST R7120 shift brake lever has a revised ergonomic design, reduced reach, and weighs 200g more than its electronic counterpart.