CB-4 Bio Chainbrite Degreaser - 16oz sensor Compatible with forward and double

Compatible with forward and double bridge fork designs

Lightweight single-ply casing

A modern tread design that collects less debris

Motion Control damping featuring low speed compression adjustment

6psi feels very different from 8 psi and most regular pumps start at 10psi

CB-4 Bio Chainbrite Degreaser - 16oz sensor Compatible with forward and doubleIt smells like oranges, but please do not drink this deceptively nice smelling concoction. 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 they're good as new. Will not harm alloy, plastic, rubber, or