Surly Single Cassette Cog 3/32" Splined 21t. Surly 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
TECH SPECS
Tooth Count
21
Cassette Body Type
Shimano 7 Speed
Material
Steel
Drivetrain Speeds
Single Speed 3/32"
Express delivery and return policies
Free shipping on orders over $30
Processing time: 1-2 Days
Shipping time: 3-5 Days(According to the logistics method and delivery address)
Items can be returned or exchanged within 30 days !
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