Surly Track Cog 1/8'' X 19t Silver MFPN=401225123 }RockShox Maxle Stealth Front Thru

}RockShox Maxle Stealth Front Thru Axle: 15x110 158mm Length Boost Compatible

Standard interface Color Black Tooth Count 25 Teeth 25T

Color Black Defined Color Black ISO Diameter 622 / Road / 29" ISO Width (mm) 65 Labeled Size 29 x 2

B17: -1C/-7C for new

Surly Track Cog 1/8'' X 19t Silver MFPN=401225123 }RockShox Maxle Stealth Front ThruSurly 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 19 Size 1 8''