Shimano EW-SD300-I Electric Wire Di2 400mm Built-In Routing Nutrition MATERIAL Polyester hook and loop

MATERIAL Polyester hook and loop fastening strap with built-in bungee strap / 2 detachable Nylon straps ATTACHMENT Hook and loop fastening strap with anti-slip and scratch-free fabric MOUNT Saddle rails

What sealant works best

Ergonomically contoured shape for comfort and ease of use

or the next joke from your riding partner

Shimano EW-SD300-I Electric Wire Di2 400mm Built-In Routing Nutrition MATERIAL Polyester hook and loopShimano Ew Sd300 I Electric Wire DI2 400mm 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