Servicing
First service, basic, full and seasonal packages.
See prices →Repairs · Diagnosis · King's Lynn, Norfolk
Find the fault. Before spending on parts.
Won't power on, cutting out, losing power or throwing an error code? We find the actual fault and give you a written diagnosis and repair quote, so you only pay to fix what is really wrong.
Book in or get a quote Call 07831 444041
Signs it needs diagnosing
- Won't power on, or won't charge
- Cuts out under load, over bumps or in the wet
- Lost power or top speed
- Error code on the display or in the app
- Grinding, whining or clicking from the motor
- Runs hot, or the range has dropped
How we diagnose
We start with the simple, common causes first: connectors, loom, kill switch and brake cut-off, throttle, and the state of the battery.
Then we test the motor, sensors and controller properly, rather than swapping parts and hoping.
You get a written diagnosis and a costed repair quote. On e-moto fault diagnosis, the fee comes off the repair if you go ahead.
The small print, up front
- No VAT to add
- Parts are extra
- Labour £65/hr, charged in 15-minute units
- Written estimate before any work
- 3-month workmanship guarantee
Prices
Labour prices; parts extra unless stated. All work quoted and approved before we start. Workmanship guaranteed for 3 months.
We don't derestrict road-legal e-bikes. We only work on EAPC e-bikes to UK rules (250 W, 15.5 mph) and will not derestrict road e-bikes or road-registered e-motos. Performance upgrades are for off-road bikes used on private land only, with a signed waiver.
Questions we get asked
What does diagnosis cost?
E-moto fault diagnosis is £59 for the first hour, then £65/hr. It includes a written diagnosis and repair quote, and the fee comes off the repair if you go ahead. Motor diagnostics and e-bike electrical diagnosis are £49. Controller and wiring fault-finding is billed at the hourly rate with a cap agreed up front.
Can you repair my battery?
We test batteries in-house with a full load test of real capacity plus cell-balance and BMS checks, and give you a printed health report (£45). For fire-safety reasons we don't open lithium packs on site. If a pack can be repaired, we send it to an approved specialist for cell or BMS work, then refit and retest it (£29 handling plus the specialist's quote).
My Sur-Ron battery display has failed. Is the battery bad?
Not necessarily. We check it is only the screen, then send the battery through Sur-Ron UK's official repair route with factory tooling and retest it when it returns (£139).
Will you remove the speed limit on my road-legal bike?
No. We only work on EAPC e-bikes to UK rules (250 W, 15.5 mph) and will not derestrict road e-bikes or road-registered e-motos. Performance upgrades are for off-road bikes used on private land only, with a signed waiver.
Should I get a used bike inspected before buying?
Yes, it is the cheapest insurance there is. A pre-purchase inspection (£79 e-moto, £59 e-bike) gives you a written report, battery certificate and repair estimate, and it is refunded if you buy from our used stock.
More from the workshop
Brakes & suspension
Pads, bleeds, fork and shock servicing.
See prices →Chain, belt, wheels & bearings
Chains, sprockets, belt, tyres, spokes and bearings.
See prices →Fitting & upgrades
Accessories, setup and off-road upgrades.
See prices →Book in or get a quote
Tell us about your bike and what it needs. We'll send you a written estimate and a date before any work starts.
Workshop in King's Lynn, Norfolk. Collection and return is available from £25 (Zone 1) and free with any Full Service.
Off-road use only. The Sur-Ron, Talaria, RFN and E RIDE PRO bikes offered here (all off-road versions) are not road legal in the UK. They must not be used on public roads, pavements, bridleways or public land. Use them only on private land with the landowner's permission or at permitted venues. RJSXtreme is an independent specialist, not an official or authorised Sur-Ron, Talaria, RFN or E RIDE PRO dealer.