Sprockets

Massive 511% range, light weight, a fair price, and serviceable, all without a new drivetrain. Our 11 speed TRS Race cassette gets you 511% range, using your existing 11 speed drivetrain. The aluminum and steel clusters are sold separately as replacement...

Our numerous 12 speed TRS Plus Cassette options give you everything from a DIY 11-to-12 speed Upgrade Kit, to a 9-50T with an amazing 556% range . All cassette options work with existing SRAM and Shimano 11 and 12 speed drivetrains, provide more range...

Our numerous 12 speed TRS Plus Cassette options give you everything from a DIY 11-to-12 speed Upgrade Kit, to a 9-50T with an amazing 556% range . All cassette options work with existing SRAM and Shimano 11 and 12 speed drivetrains, provide more range...

Our numerous 12 speed TRS Plus Cassette options give you everything from a DIY 11-to-12 speed Upgrade Kit, to a 9-50T with an amazing 556% range . All cassette options work with existing SRAM and Shimano 11 and 12 speed drivetrains, provide more range...

140 points of engagementTwo Fully Sealed BearingsHardened Cromo Outer Cog DriverTitanium Inner Body DriverEasily Serviced and Completely Re-buildable

140 points of engagementTwo Fully Sealed BearingsHardened Cromo Outer Cog DriverTitanium Inner Body DriverEasily Serviced and Completely Re-buildable

140 points of engagementTwo Fully Sealed BearingsHardened Cromo Outer Cog DriverTitanium Inner Body DriverEasily Serviced and Completely Re-buildable

Extend your range, without emptying your wallet. Box TwoÖ Cassettes are a quick and easy upgrade* for your existing 11-speed drivetrain, or the starting point of your long overdue 1x conversion. Ramped teeth and a gradual, linear progression help provide...

Made of hi-tensile steel and 7075-T6 aluminum, the Box TwoÖ 11-46 cassette helps bring the steepest climbs within reach by providing a massive gear range of 418 percent. Two aluminum carriers hold the largest seven cogs while four individual cogs are...

Extend your range, without emptying your wallet. Box TwoÖ Cassettes are a quick and easy upgrade* for your existing 11-speed drivetrain, or the starting point of your long overdue 1x conversion. Ramped teeth and a gradual, linear progression help provide...

Buzz freewheels combine durability with lightning-fast engagement. Featuring nine super-durable pawls for 108 points of engagement.

Buzz freewheels combine durability with lightning-fast engagement. Featuring nine super-durable pawls for 108 points of engagement.