Fault diagnosis
A written diagnosis and repair quote, with in-house battery testing.
See prices →Repairs · Fitting & upgrades · King's Lynn, Norfolk
Fitted properly. Set up for how you ride.
Bought parts online, or want something upgraded? We fit accessories and upgrades neatly and safely, and set them up for you. Performance upgrades are for off-road and private land only.
Book in or get a quote Call 07831 444041
Popular jobs
- Bars, risers, levers, throttles and switchgear
- Lighting and light switches, wired neatly and fused
- Graphics and decal kits
- Firmware updates and app setup
- Controller, battery and motor upgrades (off-road only)
- Fork or shock swaps
What to know first
Off-road performance upgrades are for private land only, and we ask for a signed waiver. They may affect your warranty and insurance, and they are not available on road-registered bikes.
Extra lights do not make an off-road bike road-legal.
Accessory fitting is free on accessories bought from RJSXtreme, and £15 per item on parts you bring.
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
Can you fit parts I bought elsewhere?
Yes. Small accessories are £15 per item to fit, or free if you bought them from us. Larger jobs are at the fixed prices listed here, and parts are extra.
Are performance upgrades road legal?
No. Performance upgrades are for off-road bikes used on private land only, and we ask for a signed waiver. We do not fit them to road-registered bikes.
Will upgrades affect my warranty or insurance?
They may. That is why we spell it out before booking, and why we ask for a signed waiver on performance upgrades.
Where are the upgrade packages and parts?
See the full upgrade packages and prices on our Upgrades page, and our Accessories shop for parts with secure Stripe checkout.
More from the workshop
Servicing
First service, basic, full and seasonal packages.
See prices →Brakes & suspension
Pads, bleeds, fork and shock servicing.
See prices →Chain, belt, wheels & bearings
Chains, sprockets, belt, tyres, spokes and bearings.
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.