Surly Single Cassette Cog 3/32" Splined 19t MFPN=71505 Steel cartridge bearings are durable

Steel cartridge bearings are durable Flange Diameter

6 Bracket SH Primary Color Blue Thickness In mm 5mm Internal Lock Size Metric 80cm Lock Type Combination

Available for Campagnolo and Shimano/Sram brake calipers

Length 180 Color Black Compressed Gas Inflator No Includes Mount Bracket Yes Includes Gauge No Weight 114 Defined Color Black Hose Length 80 Valve Compatibility Presta and Schrader PSI 90

Surly Single Cassette Cog 3/32" Splined 19t MFPN=71505 Steel cartridge bearings are durableSurly 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 19 Cassette Body Type Shimano HG 7 Speed Drivetrain Speeds Single Speed 3 32" Material Steel