Setting Up / Fixing your Scooter or E-Product

This guide walks you through building any of our pro scooters. The video features our MG4 model, but the same process applies across the full pro scooter range.

Step-by-step build guide for the Metro 250 commuter scooter.

Step-by-step build guide for the Metro Glide 300 commuter scooter.

Step-by-step build guide for the MADD GEAR Bounce Tramp Scooter.

Step-by-step build guide for the Rush 125 kids folding scooter.

Learn how to tune and dial in your scooter for the best possible ride — a great watch for any rider looking to get more out of their setup.

A rattling noise or loose bar is one of the most common scooter issues we hear about — and the good news is it's almost always a quick fix. Follow the step-by-step diagrams below to sort it out at home.

Is your scooter making a rattling noise? Bar a bit loose? Follow this quick and easy diagram to rectify the problem.

Your scooter maintenance should involve removing the headset to clean the grime build up which can affect a smooth ride. Sometimes it helps to check that the bearings have not come loose through riding — depending on how often the scooter is used, we suggest checks every 3–6 months.

Follow our step by step guide on how to remove, re-install or replace your headset.

Step-by-step build guide for the MADD GEAR Drift Trike.

Need a manual, parts diagram, or step-by-step guide for your Razor product? Razor's support library covers the full range — including electric scooters, motorbikes, and carts. Find your model and download what you need.

Step-by-step build guide for the MADD GEAR My 1st Electric Dirt Bike.

Fitting a new battery, or refitting the one you have? This short video walks through the battery installation from start to finish.

If your bike isn't responding, work through these steps before getting in touch with us.

1. Ensure the bike power is turned on
In addition to the speed switch, there is a silver push-button on the right side of the bike above the foot peg. Press this in — you may need to hold it for a second to activate the power. You will see the lights on the throttle illuminate.

2. Activate the safety brake function
Once the bike is powered on, squeeze the brake lever to activate the motor. Use your left hand to squeeze the brake, release, then slowly turn the throttle. If the bike is left alone for a period of time the motor power will disengage — simply repeat this process.

3. Check the battery power status
Battery voltage is displayed on the throttle. When the bike is turned on the 24V light will illuminate. If fully charged, the FULL light will also be on. As the charge drops, the LOW light will indicate it's time to charge. Initial charge may take up to 12 hours — subsequent top-up charges take between 4 and 7 hours.

Still having trouble? Contact us and we'll help you out.

Many customers experience issues with their bike not operating correctly because the battery has not been fully charged. Please follow these instructions carefully.

Why a full 24-hour charge is required
The included AC wall charger has an indicator light that turns green when the battery reaches a partial voltage threshold — this does not mean the battery is fully charged. The bike's Battery Management System (BMS) requires a minimum of 24 hours of uninterrupted charging when first charging the bike (and after long storage periods) to balance the battery cells. If the battery is not charged for the full 24 hours it may remain in a low-voltage state, and the bike's built-in safety feature will prevent it from powering on.

Step-by-step charging instructions

• Turn the bike's power switch OFF
• Plug the charger into a standard household outlet
• Connect the charger to the charging port on the bike securely
• Leave the charger connected for a minimum of 24 continuous hours — even if the indicator light turns green
• After 24 hours, disconnect the charger from the bike and outlet

Tip: Avoid unplugging the charger early even if the light is green. The BMS needs the full charge cycle to balance cells and enable proper operation.

Troubleshooting charging issues
The bike won't power on after charging:

• Was the bike charged for the full 24 hours? If no, reconnect the charger and complete the full charge. If yes, unplug and replug the charger to reset, then attempt another full charge.

Charger light turns green quickly:

• This is normal — it means the voltage threshold was reached, not that the battery is fully charged. Continue charging for the full 24 hours.

Ongoing charging best practices

• After the initial 24-hour charge, standard charging time is typically 8–12 hours when the battery is low
• Always charge the battery immediately after riding to prevent it dropping into a low-voltage state
• Do not allow the battery to sit unused for long periods without charging — recharge at least once a month during storage

Why the low-voltage safety feature matters
The BMS is designed to protect your battery from damage caused by being too low. If the voltage drops too far, the bike will not operate until the battery has been fully charged and balanced. Completing the full 24-hour charge ensures the bike is ready for safe use.

Still having trouble after completing the full 24-hour charge? Confirm all charger connections are secure and the charger is working, and check that the bike's power switch is turned ON. If the bike still does not power on, contact us and we'll help sort it out.

Your E30 arrives almost fully built. There are only two jobs to do before the first ride, and both take a few minutes.

1. Fit the front wheel
Take the bike out of the carton and remove the packing. Slide the front wheel into the fork and tighten with a 13–15mm spanner.

Check the gap on both sides of the wheel is even before you tighten fully. The wheel must sit straight, not tilted.

2. Fit the handlebar
Sit the handlebar in the stem and tighten the bolts with a hex key.

Two things to get right: the bar needs to sit symmetrical, with the same amount of grip either side of the centre, and the brake lever should sit at roughly 45 degrees below horizontal so it falls naturally under little fingers.

Before the first ride
Check every screw is tight. Make sure the side cover and chain cover are both fitted, and always ride with a helmet, gloves, knee pads and elbow pads. An adult should supervise.

The power switch is the small red button on the throttle housing. Press it once to turn the bike on, press it again to turn it off.

The round power indicator on the throttle face shows how much charge is left:

• Green (top) — full, high battery
• Green (middle) — medium power
• Red — low power, time to charge

The bike waits 5 seconds before it will drive. That is a built-in safety feature, not a fault. Once the power is on, there is a short slow-start delay before the throttle responds, so the bike cannot take off the instant it is switched on.

The E30 has two speed settings, controlled by a separate red switch on the side cover of the bike. This is not the power button on the throttle.

This switch is for an adult to set, not the rider.

• Mode 1 (switch on the I position) — no speed limit. Top speed 16 km/h.
• Mode 2 (switch on the O position) — limited. Top speed 6 km/h.

Start a new or younger rider on Mode 2 and move them up once they are confident with the throttle and the brake.

How to change it
Turn the power off and lean the bike on the ground. Move the switch to the setting you want. Turn the power back on, lift the rear wheel clear of the ground, and turn the throttle to check the speed has changed.

Charging
Open the waterproof cover over the charging port, plug the charger's DC head into the port, then plug the charger into the wall.

• Red light — charging
• Green light — fully charged

Only ever use the charger supplied with the bike. Another charger will damage the battery.

Charge after each ride rather than letting the battery run flat, and if the bike is being stored, top it up at least once every two months.

Taking the battery out
Turn the power off first. Open the rubber dust cover and unlock the battery with the key, then hold both sides and pull it out of the frame.

To put it back, push it into the frame along the track, minding which way round it goes. The lock must finish on top. Lock it with the key and close the rubber dust cover.

Saddle height
The seat post has a security line marked on it. Never raise the post past that line, no matter how tall the rider is getting.

A few minutes of upkeep keeps the bike safe and riding well.

• Tyre pressure — check monthly, inflate if low
• Battery — recharge every two months if the bike is in storage
• Chain — lubricate every six months
• Front and rear axles — grease once a year
• Head parts set — grease once a year

Chain gone loose? Adjust the jack screw on the chain adjuster to take up the slack.

Wheel wobbling or locking up? Fine-tune the wheel lock nut. Check this now and again, as the nuts can work loose with riding.

Brakes feeling weak? Fine-tune the brake nut, either at the rear drum brake or on the brake lever itself.

Here is where everything sits on the bike:

A few rules worth repeating

• Never ride the bike with the side cover or chain cover removed
• Check all screws are tight before each ride
• Turn the power off before getting off the bike or pushing it, so the throttle cannot be caught by accident
• Slow down and allow extra braking distance in the wet
• No stunt riding
• Store the bike somewhere dry and ventilated. Wipe it with a cloth rather than hosing it down

Still stuck? Contact us and we'll help you out.