Diagnosis
- Power-path and accessible voltage checks
- Controller, display, throttle, PAS, and brake-cutoff diagnosis
- Hub-motor and Hall-sensor troubleshooting
- Charger, connector, and external battery checks
Direct-to-consumer e-bike repair · Chilliwack, BC
Bought Online?
You still deserve local service.
Independent diagnosis and practical repair for many rear-hub, throttle-equipped, online-purchased, and less-supported e-bikes.
Independent diagnostics-first service
A wider yes—with honest limits.
Many shops restrict service to brands they sell or factory systems they support. Sprocket Science starts with the actual machine, symptoms, wiring, compatible parts, and available evidence. That can make practical service possible without pretending every proprietary system can be unlocked.
Start a service requestCommon reasons riders contact us
Start with what the machine is doing.
You do not need to name the failed part. Symptoms, timing, error codes, and photos are more useful starting points.
- Another shop will not assess the brand
- Bike was purchased online or second-hand
- Rear hub motor cuts out or will not run
- Throttle, display, PAS, switch, or brake cutoff is faulty
- Connector or accessible low-voltage wiring is damaged
- Compatible replacement part needs installation
Service capabilities
Electrical thinking. Practical mechanical work.
Practical repair
- Compatible display, throttle, PAS, switch, or controller replacement
- Accessible connector, harness, and supported solder repair
- Charging-port and low-voltage control work
- Rear hub-motor flat and tire service
Setup and mechanical work
- Direct-to-consumer assembly and safety setup
- Brake, drivetrain, tire, steering, and fastener service
- Accessory installation where compatible
- Condition reports and measured battery capacity testing
Clear boundaries
Many machines welcome. No blanket promises.
- Factory-locked software, serial pairing, unavailable firmware, and dealer-only programming are not promised.
- Lithium battery packs are not opened, rebuilt, modified, spot-welded, or repaired.
- Unsafe, structurally compromised, undocumented, heavily modified, or incompatible machines may be declined after review.
Tell us what changed
Ready for a proper first look?
Send the make, model, symptoms, error codes, and photos. Sprocket Science will review serviceability and reply with the clearest next step.