Bolt on Swing Arm Extension Kit 4"- 5" 

This bolt-on swing arm extension kit is the perfect upgrade for your Razor MX650 or SX500 mini bike. It is designed to enhance the performance of your bike and provide a smoother ride. The kit consists of a swing arm extension bolted to the rear of the bike, made of durable aluminum material. With a tire upgrade enabler and a bolt-on design, this swing arm extension kit is easy to install and requires only one hole to be drilled. The kit is compatible with stock wheels and brakes, and its black and titanium blue color combination adds a touch of style to your bike. This package includes one set of 4"-5" swing arm extension kit, suitable for MX650 and SX500 Razor mini bikes.