How to Convert Your Surron to Supermoto
Step-by-step guide to converting your Surron Light Bee or Ultra Bee to a supermoto — wheel sizes, tire choices, brake upgrades, and what to expect from the finished build.
Converting a Surron Light Bee or Ultra Bee to supermoto is the most popular modification in the e-moto community. The stock dirt-spec setup is competent off-road, but swap in a set of 17" wheels with street rubber and you unlock a completely different machine — one that eats twisty backroads, handles parking garages, and turns heads everywhere it goes. This guide walks through everything you need to know.
Why Convert to Supermoto?
The Surron's lightweight frame, instant torque, and low center of gravity are perfect for supermoto riding. Street tires transform the handling — tighter turn-in, better mid-corner stability, and dramatically more confidence on smooth tarmac. For riders who primarily use their Surron on pavement or mixed surfaces, the supermoto conversion is the single best bang-for-dollar upgrade available.
What You Need
A complete supermoto conversion requires: a supermoto wheel set (front and rear, 17" is the standard), matching street tires if not included, and — strongly recommended — an upgraded brake kit to match the improved traction and speeds. You may also need new brake rotors sized for the new wheels; check fitment carefully before ordering.
Step 1: Choose Your Wheel Set
Look for a wheel set specifically designed for your Surron variant — LBX, Ultra Bee, and E-Ride Pro have different axle dimensions. Complete sets typically include CNC-machined aluminum rims, stainless spokes, front and rear hubs, brake rotors, and sprocket. Buying a complete set from one supplier ensures all components are sized and drilled to work together.
Step 2: Upgrade the Brakes
Do not skip this step. Running supermoto tires with stock brakes is a safety compromise. A brake kit upgrade — larger-diameter rotors, aftermarket calipers or pads, and braided brake lines — brings stopping power in line with the improved traction. Most brake kits are designed to work alongside supermoto wheel conversions and use the same rotor bolt pattern.
Step 3: The Swap
With basic motorcycle tools and a torque wrench, the wheel swap itself is straightforward. Lift the bike, remove the axle bolts, slide out the old wheel, install the new one, re-insert the axle, and torque to spec. Bleed the brakes if installing new calipers or lines. First ride should be low-speed to seat the brake pads before pushing hard.
Step 4: Fine-Tune the Setup
After the swap, check the chain tension (different wheel offset may require adjustment), verify the speedometer reading against GPS, and inspect all fasteners after the first 20 miles. Many riders also lower the suspension slightly after going supermoto to improve the riding position for street use.
Finished Build
A well-executed Surron supermoto conversion produces a bike that genuinely competes with 250cc traditional supermotos at a fraction of the weight — and with zero emissions and near-zero running costs. It's a genuinely transformative upgrade for any street-focused Surron rider.
Frequently Asked Questions
What wheel size do I need for Surron supermoto?+
Most Surron supermoto conversions use 17" wheels front and rear. Some builders go 17" rear / 17" front for a full supermoto stance. Check each wheel set's product page for exact rim diameter, width, and tire size compatibility.
Do I need to change the brakes for supermoto?+
Upgrading the brakes is strongly recommended when going supermoto. Street speeds demand better stopping power than the stock setup provides. Most supermoto builds pair a wheel set with a brake kit upgrade.
How long does a Surron supermoto conversion take?+
Most riders complete a wheel swap in 2–4 hours with basic hand tools and a torque wrench. Factor in extra time if you're also upgrading brakes at the same time.
Will a supermoto conversion affect the Surron's top speed?+
Different tire sizes can affect the speedometer reading and effective gearing. A larger diameter tire will give slightly more top speed at the cost of some low-end acceleration. Most riders find the trade-off worthwhile for street use.
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