Tamiya Hotshot Rear Knuckle Arm Upgrade, Aluminum Replacement - JR-THS02-RD by Jazrider  [JR-THS02-RD]

Rear knuckle arm upgrade for Hotshot series

This aluminum rear knuckle arm kit is an RC-scale replacement and upgrade for Tamiya Hotshot and Super Hotshot chassis. The machined alloy provides a more rigid hub mounting compared with the original plastic parts, which helps keep suspension geometry consistent on jumps and rough terrain.

The parts generally mount in the same locations as the stock knuckles using the Hotshot rear suspension points. Before final assembly, check the clearance around wheel hexes and driveshafts, and confirm full articulation to prevent contact during compression and rebound.

As a tuning component, the reduced flex at the hub can tighten steering and stabilise rear-end behaviour; adjust tyres, shock settings, and toe in small steps to find the desired balance and test on a known surface for reliable comparison.