Genuine Halo Cassette Spacer BRAND NEW With cut outs for flush fitment 4mm Alloy Designed to take up the slack when fitting cassette.. ie fitting a 7s cassette to a 9s freehub body. Compatible with Shimano HG cassette body plus others
This product would be ideal for cyclists who use Shimano HG bodies, looking to upgrade their cassette sprockets from 7s to 8s or 9s.