Park Tool CB-4 Bio Chain Brite MPFN-42411050 Weatherproofed Internals

Weatherproofed Internals

12 x 148mm hub compatibility only

6061/T6 upper cup

NOTICE: When retaining compound or threadlocker is used on carbon fiber frames or components adhesive primer such as Park Tool AP-1 must first be applied to all component fastener and frame surfaces

Height adjustable visor

Park Tool CB-4 Bio Chain Brite MPFN-42411050 Weatherproofed InternalsPark Tool CB 4 Bio Chain Brite. Park Tool CB 4 is a 100% biodegradable natural plant based degreaser formulated for use in the CM 5. 3 Cyclone Chain Scrubber CM 25 Professional Chain Scrubber or with a scrubbing brush as a general purpose degreaser. When used with a chain cleaner CB 4 gets bicycle chains clean inside and out so theyre good as new. Will not harm alloy plastic rubber or carbon fiber parts so its safe to use for cleaning cassettes