The Park Tool SR-2.3 Chain Whip shop quality tool gives you incredible leverage without worry of slippage, and the head is uniquely shaped to allow quick and accurate access to any cassette.
• Works on 7-speed to 12-speed mountain and road bike cassettes as well as single-speed cassettes with a 3/32" cog
• Hardened bolts hold securely and make chain replacement easy
• Heavy duty, heat treated head
• Round vinyl coated handle
• The SR-2.3 is approximately 15" long (38cm)