Upgrade your Mini 4WD with Tamiya's ultra-lightweight 13mm HG Tapered Aluminum Ball-Race Rollers, engineered for speed, precision, and track-hugging stability.
The Tamiya JR HG Lightweight 13mm Tapered Aluminum Ball-Race Rollers offer high performance in a compact design. Their new ringless shape with precision-cut holes reduces weight by approximately 20% over the previous model, improving efficiency and handling. The built-in 520 ball bearings ensure smooth rotation and reduced friction, while the tapered profile helps guide cars back onto the track after jumps. Compatible with Mini 4WD and Mini 4WD PRO cars, these rollers are a top choice for serious racers looking to boost cornering stability and reduce lap times.
