Tamiya 95563 HG Lightweight 17mm Aluminum Ball-Race Rollers - Ringless Racing Set  [95563]

HG 17mm Aluminum Rollers by Tamiya 95563

These Tamiya 95563 HG Lightweight 17mm Aluminum Ball-Race Rollers are precision ringless parts made to refine the balance of your Mini 4WD car. Machined from light aluminum, they aim to reduce unsprung mass while keeping good durability. Each roller has eight drilled holes to trim weight to 0.81 grams per piece, which equates to roughly a 0.25 gram saving per roller compared to typical units, helping lower rotational inertia for faster laps.

Fitted with integrated 520 ball bearings, the rollers provide steady, low-friction spin that improves cornering stability and consistent handling. They suit both Mini 4WD and Mini 4WD PRO chassis, though some models may require minor body or bumper adjustments to fit correctly.