Compatible with Avid BB5

See Tech link below for compatibility info

2mm hand-welded 6061-T6 tubular construction

microcellular urethane (MCU) elastomers

Muc-Off Drivetrain Cleaner: 500ml Pourable/Spray Bottle pickuponly Compatible with Avid BB5The Muc Off Bio Drivetrain Cleaner is a complete drivetrain cleaning solution that can either be poured into a chain cleaning device or sprayed directly to your chain rings, rear cassettes and derailleurs to clean your entire drivetrain within seconds. It's also fully biodegradable and safe for metal, plastic, rubber and seals. Fast and effective grease cutting formula Removes all chain oil and wax residue Safely Eliminates drive chain contaminants