The EC Curved Spindle Arm used to make our spindles for our adjustable front axles on a racing lawnmower was used initially on our Gemini XR-1 Kart Chassis. 

You can use the 732 spindle arm with the 731 spindle kingpin bearing housing or 2507 Forged Spindles to create your front spindles. Our spindle arms have proven to be very durable in our racing go-karts and handling the weight of heavy racing lawnmower chassis. 

The EC curved spindle arm is designed to clear 6″ racing go-kart wheels and has three holes for adjusting the Ackerman effect between the two wheels.