Shimano EW-SD300-I Di2 Electric Wire 750mm Built-In Routing AI The holster fits up to

The holster fits up to an 8 litre dry bag and is secured with a Fidlock magnetic buckle that's easy to adjust

The light mounts to the rear of the helmet via a velcro strap system and is compatible with almost every helmet type

rim or disc

Patented lightweight aero spokes and 22mm deep/19mm wide rims keep inertia low and control high

Stretch it and wrap it thin

Shimano EW-SD300-I Di2 Electric Wire 750mm Built-In Routing AI The holster fits up toShimano Ew Sd300 I Electric Wire DI2 750mm 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