Description
Shimano Dura Ace Di2 ST R9170 Right Rear Shifter Lever 2x11 Speed model aloominator No Puncture Hassle works from No Puncture Hassle works from 15psi 120psi and temperatures from 20°C to +50°C Seals tears and holes up to 6mm Seals porous tires and bead rim gaps Lasts up to 6+ months in temperate climates Won’t dry out or ball up Real Design Supersonic Carbon Alloy Clincher 650c Wheelset