Topeak Wedge Pack II - Small Giant 7V rechargeable Li-polymer batteryDimensions (Headlight):

7V rechargeable Li-polymer batteryDimensions (Headlight): 18mm (L)*22mm (W)*52mm (H)Mount size: compatible with 24-36mm seatpostDesign and specifications are subject to change without notice

Built for E-MTB

Integrated aero design unifies the top cap

And the 48-volt system also produces less stress on the EnergyPak 560 battery

Shimano RT-CL800 rotors

Topeak Wedge Pack II - Small Giant 7V rechargeable Li-polymer batteryDimensions (Headlight):Features durable 1000 denier, wrap around zipper and extra long 3M reflective strip for added safety at night. Mounts and removes quickly with our innovative QuickClick system. Four sizes offered to exactly fit riders needs. Specifications Bag Attachment: QuickClick (F25) with seatpost strapMaterial: 1000 denier nylonAdded Features: 3M reflective strip, Safety light clip (3M is a registered trademark of 3M Company)Expanding: Medium & Large