Talaria Sting R MX4 Controller 8000W.
Talaria Sting R MX4 — also known as the TL4000 — is one of the most popular mid-size electric dirt bikes on the market, and its punchy 8000W peak power is a big part of the appeal. That power is managed by the MX4 controller, an electronic brain that governs the bike’s entire 60-volt system. Whether you’re buying your first Sting R, maintaining one, or planning an upgrade, the 8000W controller is the component worth understanding.
What Is the Talaria Sting R MX4 Controller?
The MX4 controller is a field-oriented control (FOC) unit that regulates power from the 60V battery to the mid-mounted, air-cooled DC IPM motor. It’s the component that lets the bike’s 4000W-rated motor surge to an 8000W peak, delivering at least 45Nm of nominal motor torque.talariacanada+1
The factory controller weighs about 2kg and measures 248mm × 128mm × 50mm. It runs at up to 92% peak efficiency, tolerates working temperatures up to 100°C, and is built for exceptional transient-current impact resistance, strong anti-interference, high-precision EABS voltage control, error inspection, and high/low-temperature protection.smartwheel
Power Delivery and Ride Modes.
The controller is what makes the Sting R MX4 feel responsive. It continuously computes throttle input, torque delivery, and regenerative braking for smooth, predictable power. It also manages the bike’s ride modes — Eco for conserving battery and Sport for maximum acceleration — so you can switch between efficient commuting and spirited trail riding at the touch of a button.smartwheel
The MX4 features four-level adjustable regenerative braking, letting you recapture energy on descents and fine-tune engine-braking feel directly from the speedometer. With the 60V/45Ah LG 21700 battery, the bike delivers a top speed of around 85 km/h (unrestricted) and a maximum range of roughly 120 km at 25 km/h.talariacanada+1
Replacement and Compatibility.
Like any electronic component, the MX4’s controller can fail over time — often flagged by error codes on the display — and it’s one of the most common parts to replace on a used Sting R. OEM replacement controllers are widely available, and they’re designed as direct swaps that plug into the standard wiring loom.ebikezilla+3
Because the controller governs everything from throttle to safety systems, replacing it with a genuine Talaria unit ensures all factory features — kickstand sensor, crash sensor, power mode button, and brake switch — keep working as intended. Note that the MX4 and MX3 use separate controllers, so it’s important to order the correct part for your model.ampedbikes
Upgrading for More Power.
For riders who want more than the stock 8000W, the controller is the gateway to performance. Aftermarket controllers like the Torp TC1000 and the EBMX X-9000 are popular upgrades for the MX4 platform. These units use field-oriented control with smartphone-app tuning and can push a stock Talaria MX4 motor to around 11.5kW on the stock battery, or up to 18kW with a 72V aftermarket battery.chargedcycleworks
The Torp TC1000, for example, supports batteries up to 80V nominal (22S), delivers up to 50kW max power, 700A battery current, and 1000A phase current, with efficiency up to 99% and IP67 protection. Before buying, check compatibility — some aftermarket controllers can’t communicate with the stock SCUD-produced Talaria battery.chargedcycleworks
Final Thoughts.
The Talaria Sting R MX4 8000W controller is the component that ties the whole TL4000 together — delivering the 60V power, the 8000W peak, responsive ride modes, and four-level regenerative braking that make the Sting R such a capable and fun electric dirt bike. Whether you’re replacing a faulty unit or chasing more power, understanding the controller is the key to getting the most from your bike.talariacanada+1
