Park Tool CB-4 Bio Chain Brite Cogs-11-12-13-15-17-19-21-23-25 2Position (Includes Knob

2Position (Includes Knob

Wheel sizes 20" to 29" and up to 4

USB rechargeable internal headlight battery lasts up to 63 hours and tail light lasts 100 hours

7 External Adjustments Lockout Threshold Positive Spring Air Eye to eye length (mm) 205

Park Tool CB-4 Bio Chain Brite Cogs-11-12-13-15-17-19-21-23-25 2Position (Includes KnobPark 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 carbon fiber parts so it's safe to use for cleaning cassettes chainrings pulleys or any other