The Park Tool SR-12 is a combination chain whip and box end wrench that's optimized for the installation and removal of cassettes and freewheels from 5-speed to 12-speed.
- Works on 5-speed to 12-speed cassettes and freewheels
- Heat treated construction with molded handle for comfort
- 1" (25.4mm) box end wrench fit Park Tool Freewheel/Cassette Lockring Tools
- Hardened pins keep the chain in place
This product was added to our catalog on September 17, 2018