Shimano Electric Wire Di2 EW-SD300-I Storage Stacked lacing alignment provides a

Stacked lacing alignment provides a better spoke bracing angle for a stiffer wheel

Its integrated rack mounts allow you to customise your cargo capacity

integrated cam-lock hinge -  with a textured Glide surface treatment on the arms

Puncture-resistant tyres and integrated rack mounts keep you rolling on tough city streets and more adventurous rides

a suspension seatpost and a cushioned spring seat soften bumpy sidewalks and city roads for a smooth

Shimano Electric Wire Di2 EW-SD300-I Storage Stacked lacing alignment provides aDescription SHIMANO E TUBE Electric Wire Internal Routing Electric Wire SD300 for Internal 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 (wire holder included)