How to Make Your Sur-Ron Faster: The Upgrade Path in Order

Everyone wants more speed. The mistake most new riders make is buying parts in the wrong order — dumping money into a motor before the bike can put the power down, or chasing top speed without the brakes to slow back down. Here's the upgrade path that actually works, in the order that gives you the biggest gain per dollar and keeps the bike safe and rideable at every step.

Step 1 — Controller (the single best upgrade)

Your controller decides how much current reaches the motor. The stock unit is conservative; a performance controller unlocks dramatically more torque, higher top speed, and — just as importantly — tuning. Modern smart controllers let you adjust throttle response, power curves, ride modes, and regen from your phone. This is the first thing you should buy. Shop controllers and power electronics.

Heads up: more current means more heat and more demand on your battery and wiring. That's why the next steps matter.

Step 2 — Battery (feed the power, add range)

A hotter controller will pull harder than a stock pack wants to give. A higher-capacity, higher-discharge battery (and a step up in voltage where your platform supports it) gives you sustained power, more range, and less voltage sag when you're on the throttle. If you upgraded the controller and the bike feels strong but fades, the battery is your bottleneck. Browse batteries and power upgrades.

Step 3 — Gearing (free speed, dialed to your riding)

Changing your front/rear sprockets is the cheapest "performance" change you can make. Gear taller for more top speed (great for open terrain and supermoto), or shorter for more snap and climbing torque (great for tight trails). A quality chain and sprocket set is a same-day install. See chains & sprockets. Want the full breakdown? Read our sprocket & chain swap guide.

Step 4 — Motor (when you've outgrown the rest)

A bigger motor is the last power step, not the first. Once your controller, battery, and gearing are sorted and you still want more, a high-output motor raises the ceiling. Do it earlier and you'll just overwhelm the rest of the bike. Find motors in the power collection.

Don't forget: the bike has to handle the speed

Power you can't control isn't fast — it's dangerous. Two upgrades belong right alongside the power path:

• Suspension. Real moto forks and shocks transform how the bike puts power down and soaks up landings. This is the upgrade riders say changes everything. Shop suspension, forks, and shocks.
• Brakes. If you're going faster, you need to stop harder. A 4-piston e-moto brake upgrade with braided lines is cheap insurance. Shop e-moto brakes.

The recommended order, start to finish

1. Controller — biggest gain per dollar, adds tuning
2. Battery — feeds the controller, adds range
3. Gearing — cheap, tune top speed vs torque
4. Suspension & brakes — so the bike can use the power safely
5. Motor — raise the ceiling once everything else is sorted

FAQ

What's the single best upgrade for more speed? A performance controller — it adds power and lets you tune the whole bike.

Will a controller upgrade hurt my battery? It asks more of the battery. Pair a strong controller with a quality high-discharge pack to avoid sag and heat.

Does gearing really make it faster? Yes — taller gearing raises top speed; shorter gearing increases acceleration and climbing torque. It's the cheapest tuning change you can make.

Do I need new brakes and suspension? If you add real power, yes. Upgraded brakes and suspension are what make the extra speed usable and safe.

Build smart, in order. Start with a controller, then work down the list. Not sure which parts fit your exact bike? Every product page lists fitment — or message us your model and we'll point you to the right kit.