Upgrade Parts

JR Torque-Tuned 2 Motor PRO

JR Torque-Tuned 2 Brushed Motor PRO

JR Multipurpose Tape

As a part of the Grade Up Parts line-up, this tape can be used at official Mini 4WD races and events. As the name suggests, this tape can be used for multiple purposes, such as securing the model's battery. The tape can be cut by hand, and is also easy...

JR Countersunk Screw Set, Stainless Steel (6/8/15mm)

Countersunk screws sit flush with plated surfaces they are attached to, meaning they don't stick out and damage the track surface. Thus, you don't have to cover them up and can even give your machine a lower ground clearance setting. This set features...

JR Rev-Tuned 2 Motor

Tuning your car can make the world of difference in Mini 4WD racing, and the motor is a great place to start. This motor is aimed at racers who are new to tuning their models, and can be used to alter your machines performance as the track requires. The...

Body Set Thunder Shot Clear Poly

This Thunder Shot clear body parts set is made of lightweight polycarbonate material. By using this lightweight body it will lower the center of gravity, which will increase overall performance.The Thunder Shot body is produced in lightweight yet tough,...

JR Plastic Double Rollers, Low Friction Red/Blue 13-12mm

These are a variation of the plastic rollers in Item 15457, now with rubber rings for smooth rotation. Double rollers are a super tune-up choice for beginners in particular, as they are simple to fit and provide smooth, stable cornering with the smaller...

JR Torque-Tuned 2 Motor

Tuning your car can make the world of difference in Mini 4WD racing, and the motor is a great place to start. This motor is aimed at racers who are new to tuning their models, and can be used to alter your machines performance as the track requires. The...

JR HG Aluminum Ball Race Rollers, 17mm Ringless

These are 17mm Aluminum ringless rollers. They are highly durable and offer silky smooth rotation.Includes:17mm Aluminum Rollers x2Small parts for attachmentFeatures:Built-in 520 ball bearings provide smooth roll.Compatible with Mini 4WD and Mini 4WD PRO...

2mm Aluminum Lock Nut Blue 5pcs.

These blue aluminum lock nuts provide secure and lasting attachment of rollers, mass dampers, etc. on your Mini 4WD car.Features:2mm Aluminum Lock Nut x5Lock nuts have a stylish Blue anodized finish.Compatible with all Mini 4WD and Mini 4WD PRO machines...

HG Carbon Wide Rear Plate 1.5mm

This is a 1.5mm-thick carbon fiber rear plate, which provides superior rigidity to a mini 4WD chassis, keeping the car's form and lessening time loss on the race track. The parts are marked with a printed Tamiya logo and roller diameter positions...

HG Carbon Wide Front Plate 1.5mm

This is a 1.5mm-thick carbon fiber front plate which provides superior rigidity to a mini 4WD chassis, keeping the car's form and lessening time loss on the race track. The parts are marked with a printed Tamiya logo and roller diameter positions...

JR 13mm Roller Ball Bearing

Make sure that your rollers are running at top efficiency by fitting them with these ball bearings. Made from steel, they will provide smooth progress along the track, in conjunction to superior reliability. Set Contents 13mm Ball Bearings x2 2x8mm...

JR Mini 4WD Basic Tune Up Set

This Basic Tune-Up Set is intended for novice Mini 4WD users and conveniently includes parts for fundamental modifications which are recommended by our Mini 4WD designers.

JR FRP Rear Brake Stay Set

The FRP plate in this set is an optimum size to allow attachment of the included brake sponge, while minimizing the chance of contact with parts like double rollers. Brakes are a vital racing item that stabilize your car before it jumps, which can make...

JR PRO Low Friction Roller Set

JR PRO Low Friction Roller Set