Home > Staged Upgrades Explained
What are the different stages of Motor/Gearbox Performance kits?
Stage I Kits start with the newest mold of 7R gearcases with Power Wheels' most durable gears. We then add a pair of our Performance 550 motors which boost speed up to 15% over new stock motors. More if you have worn motors. The motors also have torque sleeves added to them to help keep your ride from getting stuck in grass or hills. A steel alloy pinion gear is used and in almost all vehicles the final gear ratio is improved for even more top speed. Finally, we solder on re-usable bullet connectors so you can install and remove easily - Plug n' play! Stage I systems are good for 12 or 18 volt use, although we recommend adding the heat sink option to help keep the motors cool at 18 volts. Stage I Kits are our best selling item and best bang for your buck. A very noticeable speed increase.

Stage II Kits are Stage I Kits with Heat Sinks, Race Grease, and our Hardened Steel First Gears added. Heat sinks help keep the motors cool and increase longevity at 18 volts. Race Grease reduces friction substantially which increase speed, runtime, and keeps the motor cooler. The First Gear in a gearbox is the weakest link in the gearbox. Stage II Gearboxes replace the nylon first gears with our Hardened Steel ones. The Hardened Steel First Gears also have steel ball bearings to reduce friction and increase efficiency. Finally, the pinion gears are also upgraded to Hardened Steel for even more durability.

Stage III Kits start with the newest mold of 7R gearcases with Power Wheels' most durable gears. We then add a pair of our Performance 775 motors which which have incredible amounts of torque and are designed specifically to run at higher voltages. The motors have torque sleeves added to them to help keep your ride from getting stuck in grass or hills. And a built-in cooling fan means no need for heat sinks. A hardened steel pinion gear is used and in almost all vehicles the final gear ratio is improved for even more top speed. Finally, we solder on re-usable bullet connectors so you can install and remove easily - Plug n' play! Stage III systems are good for 18 or 24 volt use.

Stage IV Kits are the ultimate system for 18 or 24 volts. We start with our Stage III kit and then add Race Grease and Hardened Steel First Gears. This combination makes the Stage IV the most durable gearbox for the highest voltages possible. It's also one of our most popular speed products. Race Grease reduces friction substantially which increase speed, runtime, and keeps the motor cooler. The First Gear in a gearbox is the weakest link in the gearbox. Stage II Gearboxes replace the nylon first gears with our Hardened Steel ones. The Hardened Steel First Gears also have steel ball bearings to reduce friction and increase efficiency.

Do I have to get steel gears if I modify my motors or voltage?
Not necessarily. As you increase motors and voltage you increase strain on the gears. Gear survival depends on driver skill and the terrain, just like a real transmission. If your driver stripped a nylon first gear then that's a sign it's time to upgrade. We don't recommend running 24 volts or 775 motors without switching to steel first gears.

Race Grease? Really?
Yes, absolutely. If you've ever opened a stock gearbox you'll find it's coated, indeed packed, with a substance with the consistency of molasses. That's no way to spin gears fast. Our race grease was designed for specifically for high speed nylon gearboxes. It leaves a smooth Teflon coating on the gears but makes them slick like a Teflon pan. This allows the gears to spin freer which means faster acceleration, lower motor temps, and more run time. It's a no-brainer when you see a stock vs. race greased gearbox side-by-side.

Can I keep my stock battery with Performance motors and Staged systems?
In some cases the built in 30amp circuit breaker on Power Wheels batteries will start tripping on modified vehicles. This is normally seen in worn batteries or in 24 volt applications. A healthy battery will have no problem with Performance 550's, Stage I, or Stage II systems. We do offer 12 volt batteries that have 40 amp fuses which will handle all modification levels and also give 30% more run time.