Parts list: № Number Qty Name Options 1 YZ590113 2 Gear 51T SUB FOR 4059007 2 YZ104564 4 Bearing 3 YZ590123 1 Gear 61T SUB FOR YZ101878 4 F40214S 1 Ball Bearing 5 F40214 1 Ball Bearing Next page: ST305650 YZ102133 Gear and Bearing Group, 1.196:1 Ratio ST305653 YZ102134 Gear and Bearing Group, 1.286:1 Ratio ST305656 YZ102135 Gear and Bearing Group, 1:1 Ratio ST305659 YZ102136 Gear and Bearing Group, 0.723:1 Ratio ST305662 YZ102137 Gear and Bearing Group, 0.898:1 Ratio ST305644 YZ102131 Gear and Bearing Group, 0.777:1 Ratio