Once you've ridden a 72V bike, a 60V bike can feel flat. That's why "should I go 72V?" is one of the most common questions we get. The honest answer: a 72V conversion is a full system build, not a battery swap. Done right, it's a big step up. Done wrong, it can cook a controller, kill a battery or start a fire. Here's what's actually involved.
First: what voltage is your bike now?
Many popular e-motos already run 72V from the factory, so check before you plan a conversion:
- 72V from the factory: the E-Ride Pro SS 2.0 (72V 40Ah), SS 3.0, SR, 4.0 and S, plus the 79Bike Falcon Pro and Talaria Sting MX5 Pro.
- 60V from the factory: the Sur-Ron Light Bee X (60V 40Ah), Talaria Sting R MX4 (60V 45Ah) and Talaria XXX (60V). These are the bikes people usually mean when they talk about a "72V build."
The easiest 72V build is buying a bike that's already 72V. The motor, controller, BMS, charger and wiring are all matched from the factory, and the bike keeps its warranty. If you're still shopping, that's the route we'd recommend.
Why voltage matters
With the same motor and gearing, higher voltage lets the motor spin faster before it runs out of headroom. More voltage also lets the controller deliver the same power with less current, so things run cooler. In practice that means more top-end and a harder pull at speed. How much you gain depends entirely on the controller settings, motor, gearing and battery. Anyone quoting a fixed "X mph more" without knowing your setup is guessing.
What a real 72V conversion needs
Do not put a 72V battery on a 60V bike without changing the controller. A fully charged 72V pack sits well above what a 60V system is designed for. Expect a fried stock controller, error codes, or worse. A proper conversion includes:
- A controller rated for 72V and set up for your motor and battery. The EBMX X-9000 V3 is the go-to for Sur-Ron Light Bee, Talaria MX3/MX4/MX5 and XXX, and E-Ride Pro. It's sold with bike-specific harness kits, and its battery profiles need to match your pack.
- A quality 72V battery that fits your frame, with a BMS rated for the current your controller will pull. A pack whose BMS can't keep up will cut out under load or wear out fast.
- A matching 72V charger with the correct connector. Never charge a pack with a charger built for a different voltage.
- Accessory power: lights, horn and display usually run through a DC-DC converter. Make sure it accepts the higher input voltage, or replace it.
- Wiring and connectors sized for the current, with a proper fuse. See our high-voltage fuse kit.
- A motor that can take it: stock motors can often run a mild 72V tune, but heat is the limit. Purpose-built 72V motors like the Sotion FW02 for Talaria Sting or EBMX XTA-60 are designed for it. Sur-Ron and E-Ride Pro riders look at the EBMX XLB-60.
Warranty and safety: read this
- Changing the battery, controller or motor will almost certainly void the manufacturer's warranty on related parts. Check with the manufacturer before you start.
- Lithium packs store a lot of energy. Use packs from reputable builders, never charge unattended, and charge away from anything flammable.
- More power means more speed. Make sure your skills, gear and local laws keep up.
- If you're not comfortable with high-voltage wiring, have a qualified tech do the install.
Supporting upgrades: do these before the power
- Brakes: bigger rotors, better pads or a full moto brake kit. See upgraded brakes and moto brake upgrade kits.
- Suspension: faster bikes hit things harder. See suspension. Talaria Sting R owners pushing more power should look at the Heavy Hitter reinforced suspension triangle.
- Drivetrain: a stronger chain and fresh sprockets. See sprockets and chains.
- Wheels and tires: check spokes often and run tires suited to the power. See wheels and tires.
Common mistakes
- Buying a battery first and figuring out the controller later
- Running a 60V charger, DC-DC converter or controller on a 72V pack
- Skipping brakes and chain because "the bike already stops fine"
- Using a cheap pack with a BMS that can't handle controller current
- Not budgeting for harnesses, connectors and the fuse
Is 72V right for you?
If you already own a 60V bike you love and you're comfortable with electrical work, a properly matched 72V conversion can transform it. Just plan the whole system, not just the battery. If you're still choosing a bike, a factory-72V bike like the E-Ride Pro SS 2.0 or SS 3.0 gets you there with a warranty and no wiring.
Planning a build? Email support@tbelectricmoto.com with your bike, model year and goals. A rider on our team will tell you what's compatible before you spend money. Browse controllers, batteries and motors.
