Surly Single Cassette Cog 3/32 17T 3B The GA3 mini-wing offers the

The GA3 mini-wing offers the perfect combination of wrist support and trail performance

Withstands any weather temperature or conditions

the first dual lens Pit Vipers

Replacement Magnetic Pedal Assist Sensor Disk to suit your Bafang BBS01B & BBS02B Mid-Drive Motor

Surly Single Cassette Cog 3/32 17T 3B The GA3 mini-wing offers theOur cassette cogs are designed first and foremost for singlespeeding, but being that were Surly, we bumped up the versatility a bit. At the base, the cogs are 4. 35mm wide, which allows you to stack a few of them up for a simplified multi speed drivetrain. Use a 9 speed derailleur if you do that. Machined from SCM415 Chromoly steel Heat treated and chrome plated Compatible with 6 to 9 speed 3 32" chains Available in 13t22t