Surly Track Cog 1/8'' X 15t Silver Fitment-Trek Fuel EXe 2023+ the Wolf Tooth Universal Derailleur

the Wolf Tooth Universal Derailleur Hanger - UDH connects your derailleur to your frame

} Rear Derailleur Ceramic Pulley Kit Red AXS E1 (Includes 12T Upper Pulley And 14T Lower Metal Spider Pulley

Model Booster Pro Size 700c Width 37mm Casing TR TPI 120 Compound Single Bead Folding Type Tubeless Color Black Weight 419g

and an easy-adjust Threshold lever for added pedaling efficiency

Oversized aluminum barrel with steel piston floor pump

Surly Track Cog 1/8'' X 15t Silver Fitment-Trek Fuel EXe 2023+ the Wolf Tooth Universal DerailleurSurly track cogs are threaded the same as a BMX freewheel (1. 375 x 24 tpi right hand threads). This means that they will fit on single speed rear hubs as well as BMX freewheel hubs but this application is not recommended. Track cogs are meant to work on track hubs only. 415 hardened chromoly steel 1. 375" x 24 tpi Photo for color and material reference only Tooth Count 15 Size 1 8''