JR-TASB04-LB Light Blue Rear Knuckle Arms for Blitzer Beetle / Stadium Blitzer / Stadium Thunder by Jazrider  [JR-TASB04-LB]

JR-TASB04-LB Aluminium Rear Knuckle Upgrade

These rear knuckle arms are CNC-style aluminium pieces finished in light blue anodize, intended as hobby upgrades for the listed Tamiya-based models. They provide a stiffer mounting point than the stock plastic parts, reducing flex under load and improving rear-end response during cornering and acceleration transitions.

Compatibility covers the models named in the product title: Blitzer Beetle, Stadium Blitzer and Stadium Thunder. Verify hole spacing and mounting features before fitting to other chassis variants.

Installation: remove the rear hub carriers and the original arms, identify left and right orientation, relocate bearings or retainers as necessary, and secure the aluminium arms with the original hardware. After fitting, confirm freeplay at pivots and full suspension travel, then retorque fasteners to the manufacturer's recommendations.

Tuning impact: aluminium knuckles reduce compliance at the rear upright which can sharpen turn-in and stabilise traction under throttle. Combine these arms with damper, spring and tyre adjustments for balanced handling improvements.