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RR 390
386cc4-stroke1 cylLiquid-cooledElectric start
About the RR 390
A 386cc four-stroke enduro that sits between the 350 and 430, known for being easy to ride. Aimed at trail riders and enduro racers alike.
- Family
- RR 4-Strokes
- Model years
- 2005 – present
- Also known as
- 390 RR, 390RR, RR 390 4T, RR X-Pro 390, 390RR X-Pro, RR 400, 400 RR, 400RR, RR 400 4T, RR Factory 400, RR 400 Enduro, RR X-PRO 4T 390
- Trims
- Race Edition (2017 – 2027), Factory Edition (2012)
15 sources
- en.wikipedia.org › Beta_(motorcycle_manufacturer)
- motorcycle.com › beta
- betamotor.com › rr-xpro-4t-390
- motorcycle.com › beta
- motorcycle.com › detail
- motorcycle.com › beta
- cyclenews.com › 2020-beta-rr-and-rr-s-models-first-look
- betamotor.com › en (MY27 range menu)
- motorcycle.com › detail
- enduro21.com › first-look-beta-2025-rr-x-pro-range-a-m…
- bikesales.com.au › all-new-beta-rr-x-pro-enduro-range-reve…
- cyclenews.com › 2025-beta-rr-xpro-300-twostroke-390-fou…
- motorcycle.com › detail
- motorcycle.com › detail
- dirtbikemagazine.com › 2025-off-road-bike-buyers-guide
Generations
2025 – present
RR X-Pro 390CurrentNew frame (Dirt Bike 2025). The claimed '2027 RR Race 4T race-type engine cases' is a Race-model change and happened in 2025, not 2027 (Dirt Bike 2025 off-road guide).
- Engine
- 386cc
- Cooling
- Liquid-cooled
- Starter
- Electric start
- Gearbox
- 6-speed
- Fuel
- Fuel injection
7 sources
2020 – 2024
RR 390 (US: Race Edition only 2017–2022)All-new frame; engine revised with a repositioned crankshaft and twin injectors; traction control added 2023. Continues as the RR Race after 2024; 2027 RR Race 4T moves to race-type engine cases (electric start only).
- Engine
- 386cc
- Cooling
- Liquid-cooled
- Starter
- Electric start
- Gearbox
- 6-speed
- Fuel
- Fuel injection
2015 – 2019
RR 390Displacements reset to 350/390/430/480; fuel injection on the 350 from 2015 and the rest from 2016; push-button start across the range from 2017.
- Engine
- 386cc
- Cooling
- Liquid-cooled
- Gearbox
- 6-speed
2010 – 2014
RR 400First in-house DOHC four-stroke, carbureted, six-speed.
- Engine
- 398cc
- Cooling
- Liquid-cooled
- Starter
- Electric & kick start
- Gearbox
- 6-speed
- Fuel
- Carburettor
2005 – 2009
RR 400 (US: '400 RR')Beta chromoly chassis powered by a KTM-sourced RFS four-stroke engine.
- Engine
- 398cc
- Cooling
- Liquid-cooled
- Starter
- Electric start
Year specs
- Engine
- 386 cc
- Bore × stroke
- 88 × 63.4 mm
- Cooling
- Liquid-cooled
- Starter
- Electric start
- Gearbox
- 6-speed
- Fuel system
- Fuel injection
- Horsepower
- —
- Torque
- —
- Dry weight
- 107.5 kg
- Wet weight
- —
- Seat height
- 930 mm
- Ground clearance
- 315 mm
- Wheelbase
- 1480 mm
- Fuel capacity
- 9 L
- MSRP
- $11,590
Beta's MY27 page gives seat height as both 930 and 950 mm; the motorcycle.com figure is kept.
Gallery
No photos yet.