Fitment: MX 650, MX 500, SX 500 !!GET THE MOST BANG FOR YOUR BUCK!! Companies like E&C and Ride or Die offer the same quality products for up to $100 more Want to stand out? Laser-engrave any logo of your choice onto our extensions! Disclose near the front or back of the extensions (not pegs) Whether you're looking to stretch your bike for the street or need a bigger swingarm for the dirt, our 5-6 inch extensions are what you're looking for. These swingarm extensions are machined using CNC carving; no other process can achieve this precise fitment and quality. Other production methods, such as forging or casting metal, trap air bubbles within the metal, weakening its resilience and material properties. Our CNC swingarm extensions are made of Billet aluminum to withstand hard abuse without budging. Features: Billet aluminum 12mm Titanium/billet axle option All hardware included Billet break mount CNC machining process 5-6 Inch extension from stock Installation: Drill two 3/8 holes through the stock swingarm where the extension holes line up with the swingarm. Then install two of the included bolts on either side. Torque to 35-40 foot-pounds with blue locktight on bolt threads.