Shimano 105 ST-R7120 12 Speed Shifter SW Only you can clean it by

you can clean it by simply pouring hot water on the chain and let it dry Cleaning the chain this way doesn't contaminate the wax in crockpot

Hex size (mm) 1

FeaturesMechanical 12-speed dual control lever with updated ergonomicsLight shifting operation lets you focus on the road aheadNew blade shape creates shorter lever access curve allowing riders with a wide range of hand sizes and shapes to comfortably reach their leversSpecifcicationsBrake lever|Hose joint: StraightBrake lever|Recommended brake caliper: BR-R7170Brake lever|Oil: SHIMANO Mineral

The polymer has new formula enhanced for more durability and comfort

Shimano 105 ST-R7120 12 Speed Shifter SW Only you can clean it byNew lever design brings better control to a wider variety of ridersThe SHIMANO 105 R7120 DUAL CONTROL LEVERS feature a revised lever position and bracket shape developed using data from a broad study of different hand shapes. Thats combined with the all condition confidence of hydraulic disc brakes and the quick and intuitive shifting cyclists expect from SHIMANO 105. FeaturesMechanical 12 speed dual control lever with updated ergonomicsLight shifting