Trek FX 3 Gen 4 Galactic Grey bikes you can completely eliminate the

you can completely eliminate the need for chaintubes with the Dual Idler Kit

We make other versions that attach to the seat frame

This allows the idler to float side to side with the chain for better efficiency

The primary attachment is to the fender strut tube

Trek FX 3 Gen 4 Galactic Grey bikes you can completely eliminate theFX 3 is a versatile hybrid bike that's primed for performance, comfort, and utility. It has features like a lightweight aluminum frame, a carbon fork, a 1x drivetrain, and powerful disc brakes that stop in any weather. It's a commuting pro if you want it to be, or the perfect fitness companion on pavement and rail trails. FX 3 is a lightweight and fast fitness bike, commuter, and neighborhood cruiser all in one. For all the great things about this