SHIMANO Di2 BT-DN300 BATTERY FOR INTERNAL MOUNTING over-2500 Head tube diameter: Fits Ø

Head tube diameter: Fits Ø 34 – 75 mm

lightweight hand pump for high pressure tyres

For specific compatibility concerns

Ergo Bolton thumb structure with stretchy areas

While the pedal is double sided

SHIMANO Di2 BT-DN300 BATTERY FOR INTERNAL MOUNTING over-2500 Head tube diameter: Fits ØWith the same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames ensuring a clean aesthetic. Now with 3 ports, the DN300 simplifies wiring to front and rear derailleurs, supplying stable power at all times. The third port is for riders who seek the redundancy of Shimano's 12 speed Di2 wired option. Features Shimano Di2 BT DN300 Battery for Internal Mounting Compatible with thinner next generation electric wire