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Beta's first four-stroke trials bike, a 250 built in small numbers in the Rev-3 chassis and then as the Evo 4T 250.
| 2012 | 71.5 kg | 660 mm | US$8,299 |
| 2013 | 71.5 kg | 660 mm | US$7,999 |
| 2014 |
| 2015 | 71.5 kg | 660 mm | US$7,999 |
| 2016 | 70.5 kg | 660 mm | US$7,999 |
| 2017 | 70.5 kg | 660 mm | US$7,999 |