Upgrade your Razor MX500, MX650, or SX500 with our innovative swing arm extension, designed to enhance your riding experience. This extension allows you to eliminate the chain tensioner and provides you with the ability to tighten your chain like a regular dirt bike. This extends your wheel back by 3.25 to 4.25 inches.

By extending your bike you can achieve a more balanced and stable feel on the trail. Installation requires drilling holes through your swing arm, but don’t worry—every piece of hardware necessary for installation and brake caliper attachment is included. The design features slots for easy adjustment after the wheel is in place, ensuring a seamless fit with the same components.