The most common search result involves the scooter’s built-in QS-S4 or similar trigger throttle display. Many users report a "secret menu" that changes the wheel diameter or speed limit constant.
Method:
Verdict: This works on previous generations (E2S V1). On the V2 Pro, most users find that setting P3 beyond 25 reverts to default immediately, or the controller ignores the input. E Wheels appears to have locked the firmware in 2023/2024 models. e wheels e2s v2 pro speed hack
Advanced users utilize open-source tools like Xiaogen Dash or ST-Link V2 flashers. This requires desoldering the controller's programming pins.
Requirement: You need a 48V battery with a 40A BMS and upgraded phase wires to do this safely. The most common search result involves the scooter’s
The E2S V2 Pro has a folding stem mechanism with a single clamp. At 45 km/h, it’s solid. At 65 km/h, the front wheel develops harmonic oscillations. Without a steering damper, you will experience a tank slapper.
This is dangerous but effective. The controller has one or two "shunt resistors" that measure current. By adding solder to these shunts, you reduce resistance, tricking the controller into thinking less current is flowing—so it sends more power. Verdict: This works on previous generations (E2S V1)
Process:
Result: Increased torque and a top speed boost of roughly 3-5 mph (up to 18-20 mph).
Why you shouldn't do it: The FETs (transistors) on the V2 Pro controller are rated for 36V/15A. This mod pushes them to 25A+. You will likely burn the controller within a month. Plus, the motor will overheat on long hills.
Before hacking, you must understand the why. The E2S V2 Pro uses a 36-volt battery system paired with a 350-watt nominal (peak 500w) rear hub motor. Manufacturers impose speed limits for three reasons: