Surly Single Cassette Cog 3/32" Splined 16t ModelNumber=K7975 Widely spaced shoulder lugs provide

Widely spaced shoulder lugs provide traction in the corners and shed mud quickly

Close ratio gearing cassette for improved shifts under load

Chainline 56

Type Standard Size 700x38 ISO 622 Bead Wire Belted Tread/Sidewall Color Bk/Blk PSI 75 Weight (Grams) 735 TPI 27 Durometer Features SC/SPL/REF Reflective Sidewall Yes

Surly Single Cassette Cog 3/32" Splined 16t ModelNumber=K7975 Widely spaced shoulder lugs provideSurly Single Speed Cogs. Designed as a singlespeed cog but may also be stacked and used with 9 speed shifter. Multi gear use will result in slower less crisp shifting than cogs designed for multi gear systems Fit Shimano freehub splines SCM 415 hardened chromoly steel Photo for color and material reference only Tooth Count 16 Cassette Body Type Shimano HG 7 Speed Drivetrain Speeds Single Speed 3 32" Material Steel