Surly Single Cassette Cog 3/32" Splined 21t CheckoutTitle=Wera 8740A HF Zyklop Toss their favorite water bottle

Toss their favorite water bottle in a backpack

}GRAVITY TRAINING RACE SHORT MEN BLK 28

}RideWrap Tailored Salsa - Blackthorn/Cassidy Alloy Small Gloss

With GripWalk soles

Surly Single Cassette Cog 3/32" Splined 21t CheckoutTitle=Wera 8740A HF Zyklop Toss their favorite water bottleSurly 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 Drivetrain Speeds Single Speed 3 32"