Swingarm Kit – Extended 1.5″ over stock. This kit includes a high quality lightweight all aluminum swingarm that increases strength and improves handling. Unlike many other swing arms on the market, these use billlet aluminum sections and the pivots use bearings instead of the stock type rubber bushings. Comes complete with everything needed to bolt on. Recommended for use with 280mm long rear shocks. We have two types of 280mm rear shocks sets available in this section that work great with this swingarm. These are the swingarms we use on our Z50s and definitely are not the cheaper poor quality cast aluminum Chinese $75.99 ebay specials you see around – just compare the welds and aluminum if you can get them side by side.