Requires thrust washer 57.3931 (click here for thrust washer) Adaptor to fit 4 spring clutch to A7 A10 B33 etc swingarm mainshaft. SRM design ensures chianwheel is supported from wobble by the thrust washer. Highly reccommended to use in conjunction with our Needle roller lift clutch pressure plate part no SRMPP3.
Felt sealing washer included which is an upgrade on the BSA oil scroll that did not work.
