Upgrade Parts

JR Torque-Tuned 2 Motor PRO

JR Torque-Tuned 2 Brushed Motor PRO

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 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...

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...

Hyper-Dash 3 Motor

JR Hyper-Dash 3 Brushed Motor

BB-01 Slipper Clutch Set

BB-01 Slipper Clutch Set

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.

Hyper Dash Motor PRO

Made for the advanced Mini 4WD racer, this high-performance Mini 4WD PRO motor really shines on winding, twisting circuits and features silver carbon motor brush for maximum electricity conduction. Must be given regular maintenance to ensure optimal...

FRP Wide Front Plate

This durable FRP front stay needs no body modifications when being fitted to any fully-cowled Mini 4WD machine. This is a great upgrade part that even beginners can use with ease!Features:This item has attachment points for 9, 13 or 19mm rollers...

JR PRO FRP Support Plate

Install this FRP Support Plate Set to better counter the pitch forces that a Mini 4WD car experiences during corners and ensure roller contact with the track walls for greater stability. The plates can be easily installed on either the nose or tail units...

JR AR Chassis Basic Tune Set

This basic Tune-Up parts set includes fundamental Mini 4WD tuning options that you can use for your AR Chassis. The set includes mass dampers, front and rear FRP roller plates, stabilizer heads and 13mm rollers.

JR 3-Spoke Ball-Race Rollers (17mm/Aluminum)

Lightweight aluminum roller with three spokes. Rubber rings are included for shock absorption.

Side Mass Damper Set MA Chassis

Side dampers perform a key role in limiting "bounce" after your car has landed on a Mini 4WD racing circuit. This set features newly-designed FRP plates to attach to the side of the MA chassis, plus it includes block weights to fine tune the mass damper...