This Kraus Vector One axle adjuster is designed to keep your rear wheel aligned when putting the power down. Stock parts are effectively made for limited torque producing engines only and rear axle and axle adjusters may slip under load. Wheel misalignment can create speed wobbles; ill-handling effects and more of which nothing is good. The Kraus axle adjuster uses a threaded locking mechanism that is easy to adjust; secure and perfectly keeps wheel alignment no matter how much torque you throw at it. - Must have for Power Baggers - High grade nickel plated 1144 Stress proof alloy steel axle is nearly 2 times stronger than a stainless axle - Adjuster housings and slides are billet aluminum - Axle nuts are stainless and are secured by a c-clip - Easy alignment: The clocking tick marks and the locking screw mechanism makes it easy and secure - Compatible with stock and most aftermarket exhausts due to the small ''Flushline'' end pieces - Upgrade replacement for OEM 43000002; 43000207 axle. Note: Now designed with narrow profile end caps; the Vector One Flushline adjuster eliminates the need to modify aftermarket exhausts; making installation cleaner and hassle-free. The updated slide-in fitment replaces the previous twist-on method of the first version; ensuring a more secure and straightforward setup.