DIAMOND DISC MEDIUM FOR EDGE TUNER WORLD CUP ROCK N ROLL GREASE RED DEVIL 16OZ "The narrow/wide chainring is designed

"The narrow/wide chainring is designed to retain the chain without the need of a chain device

Not suitable for Carbon and Exalith brake track

Apply cold in thin layers and smooth with a synthetic cork (T20)

but is often used as base for top coats

Now produced three different offsets to suit Specialized

DIAMOND DISC MEDIUM FOR EDGE TUNER WORLD CUP ROCK N ROLL GREASE RED DEVIL 16OZ "The narrow/wide chainring is designed"World Cup side edge angle for edge side guidance of the file. Allows a precise filing of a clean, razor sharp side edge. Machined from high grade aluminum. This side edge angle is used by professionals in the Alpine World Cup."