The wait is over
2027 Beta Enduro
Beta RR RACE 4T 390 MY27
TOTAL BALANCE ON ANY TERRAIN
- •The RR Race 390 4T offers the ideal blend of manoeuvrability and usable power. The introduction of Launch Control, Quick Shift, retuned KYB suspension and an LED headlight elevates performance whilst maintaining an intuitive and smooth ride. Stability, safety and instant traction make it the perfect companion for picking up the pace on any track.
Price Promise
We guarantee competitive pricing across our full range of new and used bikes.
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Officially authorised and trusted to supply and support leading motorcycle brands.
Extended Warranty
Added peace of mind with comprehensive warranty options available.
4.8 Google Rating
Highly rated by our customers for service, expertise, and reliability.
Tech Specs
Technical Data — RR Race 390
Chassis
| Spec | Detail |
|---|---|
| Frame | Molybdenum steel with double cradle split above the exhaust port |
| Wheelbase | 1480 mm |
| Max length | 2180 mm |
| Max width | 830 mm |
| Max height | 1275 mm |
| Seat height | 950 mm |
| Ground clearance | 335 mm |
| Footrest height | 427 mm |
| Dry weight | 107.5 kg (front 52.7 kg; rear 54.8 kg) |
| Fuel tank capacity | 9.0 l |
| Reserve | 2.3 l |
| Cooling system capacity | 1.4 l |
| Front suspension | KYB sealed cartridge USD front fork (ø48 mm) |
| Rear suspension | KYB monoshock with progressive compound lever |
| Shock absorber stroke | 130 mm |
| Front wheel travel | 300 mm |
| Rear wheel travel | 287 mm |
| Front brake | Wave disc ø260 mm and double-piston floating caliper |
| Rear brake | Wave disc ø240 mm and single-piston floating caliper |
| Front rim | 21 x 1.6 – 36 holes |
| Rear rim | 18 x 2.15 – 36 holes |
| Front tyre | 90/90 – 21 |
| Rear tyre | 140/80 – 18 |
Engine
| Spec | Detail |
|---|---|
| Type | Single cylinder, 4-stroke, liquid-cooled |
| Bore | 88 mm |
| Stroke | 63.4 mm |
| Displacement | 385.6 cc |
| Compression ratio | 12.48:1 |
| Valve train | DOHC finger follower / 4 titanium valve |
| Starter | Electric starter |
| ACG | AC – CDI Kokusan |
| Spark plug | NGK LKAR 8A-9 |
| Lubrication | 2 oil pumps |
| Fuel system | Elldor dual electronic injection |
| Throttle body | ø42 mm – Synerject |
| Clutch | Wet multi-disc clutch |
| Primary drive | Z.28/76 |
| Transmission | 6 gears |
| Final transmission | Chain |
| Engine oil | SAE 10W/50 0.8 l + SAE 10W/40 0.8 l |
| Consumption | 3.3 l/100 km |
| CO2 emissions | 79 g/km |
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What Our Customers Say
4.8 rating from our customers
Dec Whiteoak
1 months ago
I don’t often leave reviews but credit where it’s due, I’ve bought trials bikes from most of the trials shops now. Bought one from John lees. Purchased on a dinner break over the phone and the bike was packed, shipped and arrived to me within 24 hours. Small issue with the bike but Chas went way out of his way to help and got it sorted. This shop has restored my faith in buying a used bike. Chas was so upfront , helpful and fast! Thanks for the bike chas hope to deal with you when I’m due another one! 👍
warren stacey
6 months ago
Purchased a 25 TXT Racing today. Easy painless transaction Brilliant deal from Chas, Fantastic customer service, will definitely be using again cannot recommend them enough
AK
4 months ago
Purchased my first 2T here, a Beta 200. It was strange, I’d tell friends where I was buying it and they all told me, “oh Chas will look after you.” And look after me he did! DVLA caused some delays and Chas took care of it all and helped me throughout. My next bike will also be bought from Chas! I’d have no hesitation in recommending John Lee & Sons.
RR Sendit
4 months ago
I just want to say a massive thanks to Chaz and the guys at John Lee & Sons, there customer service skills are a rare thing to find now a days and they go above and beyond to make sure you as a customer are happy with everything. I couldn't recommend them enough. -Reece C
Jack Stevens
5 months ago
Fantastic service from start to finish from Chas and the team here! First time buying a new bike and was very happy with the process, will definitely be returning when it's time for another and highly recommend! Thanks all!
Sam Gage
4 months ago
Fantastic company and friendly staff. Had a great experience with the Purchase of my son’s electric duo bike. Even when I encountered an issue it was quickly resolved.
Totally Trails
1 months ago
Great Company, quick to respond to messages and calls. They stuck to date and time for delivery. Overall friendly customer service and aftercare. Highly recommend
Ingrid Leatherdale
3 months ago
Fantastic service They could select boot and helmet size at a glance. Amazing choice for trials equipment available and very competitive prices. So glad I found them.