Quick answer: If you'll be riding on roads, the 250W is the one for you. If you're heading onto private land or trails, most riders are happiest with the 2000W or 3000W.
Question 1: Where will you ride?
- Roads and bike paths: go with the 250W, since it's the only power allowed on public roads in Australia.
- Private land, farms or trails: look at 1000W and up, which gives you real power for hills and dirt.
Question 2: How much power do you want?
| Level | Kits | Top speed |
|---|---|---|
| Mild | 250W to 750W | 25 to 35 km/h |
| Wild | 1000W to 2000W | 45 to 80 km/h |
| Savage | 3000W to 5000W | 90 to 100 km/h |
Every kit side by side
| Kit | Top speed | Battery | Great for |
|---|---|---|---|
| 250W | 25 km/h | 48V | Road commuting |
| 500W | 30 km/h | 48V | City riding, light hills |
| 750W | 35 km/h | 48V or 52V | Hilly areas, carrying loads |
| 1000W | 45 km/h | 48V or 52V | Everyday riding with punch |
| 1500W | 60 km/h | 48V or 52V | Light trails |
| 2000W | 80 km/h | 48V, 52V or 60V | Trails and steep hills |
| 3000W | 90 km/h | 60V or 72V | Off-road and private property |
| 5000W | 100 km/h | 72V | Maximum power, experienced riders |
These are the top speeds each kit can reach, but your own speed will depend on your battery, your weight and the ground you're riding on.
What changes as you go up in power
- You get faster and stronger, with quicker take-offs and hills that feel a lot easier.
- You'll need a bigger battery, and bigger batteries cost more and weigh a bit more too.
- Your brakes work harder, so the faster you plan to go, the more good brakes matter.
Our top picks
- Your first e-bike for trails or a farm: the 2000W is strong on hills and still easy to control.
- You want serious speed: the 3000W is our top pick for off-road riders.
- You only ride on roads: the 250W is built for the road-legal power limit.
Just keep in mind that going bigger also means a bigger battery and a bigger bike, as the 3000W and 5000W kits need a size L frame or larger. Our guide on whether it will fit your bike explains more.
The 3 small choices on the product page
- Wheel size (26, 27.5 or 29 inch): just pick the same size as your bike's wheels now, which is printed on the side of your tyre (something like "29 x 2.2").
- Screen (SW900 or UKC1): the SW900 is a simple black-and-white screen, while the UKC1 is a modern colour screen that's a little easier to read.
- Controller (Sinewave or Squarewave): Sinewave is smoother and quieter, and Squarewave feels punchier with more motor sound. If you're not sure, go with Sinewave.
What comes in every kit
Every kit comes with the motor wheel, controller, screen, throttle, pedal sensor, brake levers, torque arms and a controller bag. The battery is sold separately, and our battery guide will help you choose the right one.
Common questions
Can I upgrade later?
Yes, plenty of riders start with one kit and upgrade the motor or controller down the track. Just make sure your battery suits the new kit.
Is a bigger kit always better?
Not really, because a bigger kit needs a bigger bike and battery too. It's best to buy for the way you'll actually ride.
Can I install it myself?
Absolutely, and doing it yourself keeps your warranty valid. Our 9-step install guide walks you through it.
Still not sure which one is right for you? Email a photo of your bike to sunny@ampx.com.au, tell us how you'd like to ride, and we'll happily recommend a kit.
Kits over 250W are for off-road and private property use only.