Monovitesse

Shimano & SRAM compatible single speed conversion kit. Kit includes 9 spacers to fit a single speed cog on an HG freehub. Cog not included. Read more

Whether replacing a worn-out cog of just changing your gear ratio, you'll want to use the best parts for your single speed machine. The Shimano Dura-Ace Track Cog is a screw-on track cog for fixed gear bikes. It uses the standard 1.37" x 24 TPI threads. Read more

Whether replacing a worn-out cog of just changing your gear ratio, you'll want to use the best parts for your single speed machine. The Shimano Dura-Ace Track Cog is a screw-on track cog for fixed gear bikes. It uses the standard 1.37" x 24 TPI threads. Read more