SPA CYCLES Bottom Bracket/Cassette Spacer
|High quality spacers for cassette freehub bodies and bottom bracket cups.
A 4.5mm spacer is used when running a 7spd cassette on a 8/9/10spd freehub.
Allows adjustment of the chainline when fitted behind the RH bottom bracket cup.
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.