Park Tool CB-4 Bio Chain Brite Drivetrain Speeds-9 5/29" Travel 130mm

5/29" Travel 130mm

2 size bell options

Backlight buttons and LCD display provide ease of use and light status at a glance

The Apex chain uses the same construction as the Rival and Force chains with a polished gray finish

Castled bottom out bumper reduces harsh bottom-out leaving extra room for the bold to go big

Park Tool CB-4 Bio Chain Brite Drivetrain Speeds-9 5/29" Travel 130mmPark 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