ZIPP SL Speed DI2 Battery Mount for 27.2 Seatpost pickuponly Formula hub

Formula hub

The Ruffian Lock-On grip combines an ultra narrow knurled surface and Lock-On Grip System technology for the ultimate in control

The classic Comp III tread design in a retro gumwall tire

Rocket II direct cable adjusters fit into Shimano STI shifters with external shift cable routing

540 / Wheelchair - 24" x 1" - 24" x 1-3/8"

ZIPP SL Speed DI2 Battery Mount for 27.2 Seatpost pickuponly Formula hubDesigned for use with the Zipp SL Speed speatpost; an internal mount to hold a Shimano DI2 seatpost battery. Mount compatible only with B1 SL Speed seatpost Weight: 18g for 27. 2mm Note: We have found this to work on almost all 27. 2 seatposts!