16T Single Speed Fixie Cog hero Up to 20 Hours of

Up to 20 Hours of Battery Life: Enough power for race day and beyond

A cutting-edge nitrate-loading drink mix tailored for endurance athletes

Extend your seatpost as far as you want

1x bleed port cover including sealing ring

will need to be purchased from Trek®

16T Single Speed Fixie Cog hero Up to 20 Hours ofCOMPATIBILITY: Convert a multi speed hub to single speed wheel. Compatible with all Shimano or Sram 7 to 11 speed cassette type hub body, mountain and road. NOTE: It will NOT covert the hub into fixie, so the hub is still a freewheel hub. CHAIN SIZE: The sprocket is compatible with the chain width from 1 2" x 3 32" to 1 2" x 11 128". ( 7 speed to 11 speed chains). You can use your original chain! With a choice of different sprocket teeth selections,