Nut – Late Cam Chain Adjuster – 22 x 11.5mm. thick. Fits to 18mm. x M1.5

threaded shaft. OEM Ref.# 90179-18274-00

Fits: 1980-84 XS650 2F/G/SG/H/SH/SJ/SK/SL

( Note: 76-79 models did not use a lock nut )

Part #05-0052 $4.00 Ea.