Surly Single Cog S3-10spd PROFILE DESIGN - SONIC ERGO

PROFILE DESIGN - SONIC ERGO 26A

The Terreno Wet is a World Cup-proven tyre for muddy days between the tape or beyond the tarmac

COROS DURA has built-in global offline maps with turn-by-turn directions to help you stay on course

Usability: It is flexible

Surly Single Cog S3-10spd PROFILE DESIGN - SONIC ERGOSURLY CASSETTE COG Our cassette type cogs are designed to fit on standard Shimano compatible freehub bodies. These cogs have a tall tooth profile that is essential for preventing chain skip from the extra torque a singlespeed drivetrain encounters. In addition to being a stellar SS cog, the cog base width (where it contacts the freehub body) is 4. 35mm, so you can stack a few of them up and use a 9 speed shifter for a simplified multi speed