E-Bike & Scooter Controller Replacement
Professional controller replacement and repair for e-bikes and scooters across the SF Bay Area. As the central unit managing motor power, throttle input, and overall performance, a malfunctioning controller can severely affect your ride's reliability. Our technicians diagnose the problem accurately and install a high-quality, compatible replacement — restoring smooth acceleration, responsive throttle, and safe, efficient performance.
★ 4.9 on Google · 75+ reviews · Burlingame, CA
Introduction
The controller is the brain of your electric bike or scooter. It interprets throttle input, manages motor output, and regulates battery power delivery. When it malfunctions, you get symptoms like poor acceleration, jerky movement, delayed throttle response, or total motor failure. Our technicians diagnose, repair, and replace faulty e-bike and scooter controllers, including programmable units such as Sabvoton, Votol, and Fardriver. We match the replacement to your motor and battery so speed control, efficiency, and safe operation are restored.
Service Overview
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High-Quality Controller Replacement: In most cases, controller issues are best addressed through replacement. We install OEM-compatible controllers selected to match or exceed the performance of your original unit. Each controller is bench-tested and set up for dependable operation.
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Selective Repair Services: Some faults are repairable, but controller repair is reserved for specific cases. Our goal is long-term reliability, which is why we prioritize replacement with tested components over short-term fixes.
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Full System Integration Testing: After installation, we test your entire drive system, including throttle, motor, battery, and display. This includes load testing, fine-tuning, and a test ride to validate smooth throttle response and consistent power delivery.
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Optional Performance Tuning: For compatible systems, we offer controller parameter tuning. Whether you want more torque, a smoother throttle curve, or better battery efficiency, we tailor controller behavior to your riding style.
Cost of Controller Replacement
Pricing depends on the controller type, compatibility, and system complexity. Advanced or high-performance systems may fall on the higher end.
Prices are for labor; the controller itself is billed separately. Final pricing is confirmed after inspection and system evaluation.
Known job? We quote it from the price list. Not sure what's wrong? It starts with a diagnostic.
Why Choose Us?
Experienced Technicians: Our team is experienced in diagnosing and servicing complex e-bike and scooter electronics, including programmable controllers and custom high-power builds.
Quality Replacement Controllers: We use OEM-compatible or high-performance controllers that meet or exceed original specifications, selected for compatibility and durability.
Transparent Pricing & Warranty: We provide clear, upfront quotes with no hidden fees. Our labor is covered by a workmanship warranty, and controllers purchased through us carry their own parts warranty. Customer-supplied controllers are covered for correct installation only.
Service
FAQs
Frequently Asked Questions & Technical Specifications
Common signs include jerky acceleration, delayed throttle response, error codes, inconsistent speed, or complete loss of motor function. A controller issue may also cause overheating or unexpected behavior under load.
Controller replacement at EVE MODS typically runs $50 – $250 for labor, with the controller itself billed separately. Basic replacements are at the lower end; programmable controllers and custom tuning cost more. The final price is confirmed after inspection.
Controller work is done at the EVE MODS workshop in Burlingame, CA, by appointment. It needs bench testing and a test ride, so it is not offered on-site. Riders drop off from across the San Francisco Peninsula.
That depends on the extent of the damage. Some controllers can be repaired by replacing components like MOSFETs, capacitors, or connectors. If repair isn't practical, we install a new controller matched to your system.
Most controller replacements are completed within 1 to 2 business days once the part is in hand. Turnaround is confirmed when you book.
Yes. We work with a wide range of aftermarket and custom controller systems. If your build uses a programmable controller or a non-standard configuration, we'll evaluate it and recommend the right solution.
In many cases, yes. Modern controllers can offer smoother acceleration, better heat management, and more efficient power delivery. With proper tuning, they can also improve torque and responsiveness.
Ready to Book Your Service?
Send a photo and a short description. If the job is clear, we quote it from the price list. If the cause is unknown, it starts with a diagnostic. No repair starts until you approve the price.