This 48T Delrin spur is a dedicated replacement for Axial Racing EXO platforms, supplied as a single part. The material selection focuses on low friction and quieter mesh compared with many metal spurs, providing a practical option for tuning and maintenance without introducing metal-on-metal noise.
Assembly guidance: confirm correct pinion-to-spur mesh and set backlash before initial running, use motor mount or shim adjustments to achieve smooth engagement, and ensure chosen pinion pairs correctly with the 48T spur for the target ratio. Avoid excessive clamp torque on the hub to prevent distortion of the Delrin; validate alignment after a short loaded test to confirm proper engagement.
Tuning implications: installing a 48T spur changes the drivetrain ratio and therefore influences acceleration and top speed when paired with different pinion sizes. Adopt an iterative tuning approach, change one parameter at a time and record outcomes to optimise setup for trail, crawling or general bashing in electric RC vehicles.