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Beta's four-stroke enduro bikes, from the KTM-engined 400–525 to the in-house 350–480, including RR Race and RR X-Pro trims.
2011 – present · 349cc · 4-stroke
New 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).
2005 – present · 386cc · 4-stroke
New 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).
2005 – present · 431cc · 4-stroke
New 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).
2010 – present · 478cc · 4-stroke
New 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).
2005 – 2009 · 510cc · 4-stroke
Beta chromoly chassis powered by a KTM-sourced RFS four-stroke engine.
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).
Displacements 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.
New 349cc engine derived from Beta's 400–498 four-stroke, carbureted; 2011 was a limited run.
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).
Displacements 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.
First in-house DOHC four-stroke, carbureted, six-speed.
Beta chromoly chassis powered by a KTM-sourced RFS four-stroke engine.
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).
Displacements 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.
First in-house DOHC four-stroke, carbureted, six-speed; a 2012-only cross-country version was offered.
Beta chromoly chassis powered by a KTM-sourced RFS four-stroke engine.
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).
Displacements 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.
Same 498cc engine as the 2010–2011 RR 520, renamed to its true displacement.
497.4cc, carbureted Keihin 39mm.