Shimano CS-M737 Cassette Lockring Washer (Silver)

Shimano CS-M737 Cassette Lockring Washer Description:

The Shimano CS-M737 Cassette Lockring Washer is a factory replacement part that can be used to replace a damaged or missing spacer from assorted Shimano 9-12 speed HG and LinkGlide cassettes. This part is designed to nestle between an 11-tooth small cog and the lockring to ensure the cassette is properly secured when the lockring is torqued down.

Features:

• Steel cassette lockring washer is designed to fit between an 11-tooth cog and the lockring for 9-12 speed Shimano HG and LinkGlide cassettes
• Spacer is sold individually
• See compatibility tab for full list of compatible cassettes

This product is expected to become available for purchase on Wednesday, September 23, 2026