Surly Single Cassette Cog 3/32 17T 3B Replacement Magnetic Pedal Assist Sensor

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

Compatibility: For use with the Box Prime 9 series only

the first dual lens Pit Vipers

5Plus) are offered

Speed 10 Compatibility SRAM EXACT ACTUATION rear derailleur Material Aluminium pull lever Weight 123g Tech Exact Actuation

Surly Single Cassette Cog 3/32 17T 3B Replacement Magnetic Pedal Assist SensorOur 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