Upgrade Parts

JR Aluminum Motor Support

More positive motor alignment. Assures the maximum motor power during jumps and wall contact. Radiates motor heat for cooler running.

JR Wide Front Sliding Damper

Give your Mini 4WD machine the power to adapt to a wide range of course styles and layouts! This sliding damper allows more stable running as it absorbs obstacles like gaps in the track fence and provides more cushioned landings.Features:Plate is made...

JR Front Under Guard

Mini 4WD users often equip their vehicles with front aluminum FRP plates for a wide roller setting. This enhancement often leads to user"s vehicles getting stuck on the course fence. Tamiya designed this underguard to block the gap and improve your...

JR PRO High Speed Gear Set

Offering the high speed gear included with Mini 4WD PRO Nitro Thunder and Nitro Force as a separate grade up part to widen setting choices. Mini 4WD PRO racers equipped with small wheels and super speed 3.5:1 gear may experience dulling of acceleration...

JR MS Chassis Brake Parts Set

When racing your Mini 4WD, not only do you require top speed throughout the race, you also need a way to keep your car on the track at lane change and slope sections. These brakes which have a sponge sheet attached to their lower sections that slightly...

JR Steel Bearing 4pcs Fluorine Coated

These 620 sized Fluorine Coated Steel Bearings for wheel axle use are an excellent way to upgrade your machine. They offer excellent qualities such as low resistance, high precision, and excellent durability making them a must-have for all Mini 4WD...

JR Rein EE Double Roller Stay

Rear Double Roller Stay which features high rigidity and durability against shocks and crashes.

JR Propeller Shaft Set

This is a handy set of replacement propeller shafts, which may be a useful addition to your FM-A, Super X and Super XX chassis spare parts box. -Hex Shafts x2 -Compatible with FM-A, Super X and Super XX chassis cars.

JR RC Hex-Hole Ball Bearing 4pcs

These high-grade ball bearings assure smoother wheel movement for overall faster performance. One side of the ball bearing hold is made of transparent plastic allowing you to see the actual ball bearings. Set includes two ball bearings (outside diamter:...

JR Stabilizer Ball Cap, Bright

Further customize your MINI 4WD with these eye catching stabilizer ball caps. Each packcomes with 5 different colored caps x 2 (10 in total) and balls x 4 (20 in total) respectively.Can be used with MINI 4WD cars.Includes:A rubber tube for attaching...

12mm Hex "DOT" Machined Aluminum Hubs (2) "4 DOT 10mm"

12mm Machined Aluminum Hex Hubs w/ Hardware, 10mm Offset (2)

12mm Hex "DOT" Machined Aluminum Hubs (2) "3 DOT 7mm"

12mm Machined Aluminum Hex Hubs w/ Hardware, 7mm Offset (2)

XPT3 LCG Transmission - Black

REEFS XPT3 LCG Transmission - Silver

12mm Hex "DOT" Machined Aluminum Hubs (2) "1 DOT 2mm"

12mm Machined Aluminum Hex Hubs w/ Hardware, 2mm Offset (2)

Universal Servo Mounting Tabs

Universal Servo Mounting Tabs - CNC Aluminum w/Hardware