Surly Track Cog 3/32 X 17t Silver axle/spacing (mm)-12x142mm TA and LG1 cranks

and LG1 cranks

Drivetrain Speeds 12Shifter Style TriggerColor BlackWeight 145

Steerer Type Tapered Lockout Switch Crown Brake Type Post Mount 160 Negative Spring Coil Travel (mm) 100 Offset 42 Axle to Crown Length 496 Front Axle 15mm Thru x 100mm Maximum Tire Width 54 S

BCD Direct Mount SRAM 8 Bolt BB Inclusion No Teeth 58 Connectivity ANT+ BT Speed 12

and more controlLiterally sticks to the ground as the tire deforms more precisely at specific pointsProfile optimized for radial carcass: Open tread design with high tread depth for excellent traction especially on soft surfaces

Surly Track Cog 3/32 X 17t Silver axle/spacing (mm)-12x142mm TA and LG1 cranksSurly Track Cog 3 32 X 17t Silver. Surly 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 TECH SPECS Tooth Count 17