Grunge Brush String It is directly descending from

It is directly descending from the B66 Champion

Optimized pin location and fore-aft concave profile

A professional quality shop chain tool that works on 5-speed to 12-speed road and mountain bike derailleur chains*

Made from Arena’s max life fabric which offers the best resistance to chlorine

The 100% chlorine resistant MaxLife fabric with integrated UV protection UPF50+ is extremely quick-drying and long-lasting

Grunge Brush String It is directly descending fromRegular component cleaning prevents premature wear and tear on chain and sprockets, eliminates chain skipping caused by dirt and grunge, and assures smooth operation of drivetrain and brakes. The Grunge Brush can be used dry or for deep cleaning action, use it with Citrus Bike Chain Degreaser or Multi Bike Degreaser, by simply spraying degreaser onto the chain or directly onto bristles. Grunge Brush scrubbing action, coupled with a Finish Line bike