Shimano EW-SD300-I Di2 Electric Wire 350mm Built-In Routing BIKESPORTZ specifically designed head tube and

specifically designed head tube and our own Ti headset enabling cables to travel internally through the handlebar

4mm hookless inner rim width offers better tire sidewall support and improved control

This is a combination of the UT-BB140 tool and the UT-BB141 adapter to be able to mount Campagnolo Ultra-Torque and Over-Torque bearing shells

SpecificationsHex 2

Shimano EW-SD300-I Di2 Electric Wire 350mm Built-In Routing BIKESPORTZ specifically designed head tube andShimano Ew Sd300 I Electric Wire DI2 350mm Built in Routing Features More compact design makes new electric components smaller and lighter Will potentially expand the future capabilities of DI2 systems For internal routing usage Mfr Claimed Weight TBC