Surly Track Cog 3/32'' X 17t Silver MFPN=BC-0001 Compact wrench features a disc

Compact wrench features a disc rotor truing slot

A rear rack mounted pannier-style basket that is perfect for shopping trips and can fold away when not in use

Rotor Size (mm) 140Pad Compatibility All Pad CompoundsRotor Type One PieceWeight 100Hub/Disc Compatibility 6-Bolt

The lower spring rate in turn gives a lighter lever action reducing rider fatigue and keeping Hope's legendary feel and modulation

Surly Track Cog 3/32'' X 17t Silver MFPN=BC-0001 Compact wrench features a discSurly 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 17 Size 3 32''