Shimano EW-SD300-I Electric Wire Di2 850mm Built-in Routing Softgoods while the asymmetric rim profile

while the asymmetric rim profile allows for superior stiffness control and total tension management

When they take them off they keep them close at hand

Colour: Silver

so whether it’s a tightly packed 11–25-tooth block for time trialing or a wide ranging 11–32-tooth for conquering even the most epic climbs

removing any trace of grease or lubricant

Shimano EW-SD300-I Electric Wire Di2 850mm Built-in Routing Softgoods while the asymmetric rim profileFEATURES More compact design makes new electric components smaller and lighter Will potentially expand the future capabilities of DI2 systems For internal routing usage