BETARR 4T 350 2018 - Present

　　This is the easiest handling bike in the 4-stroke model range. It favors riding at higher revs while keeping its power output very linear. Compared to the 2017 model year, a great deal of development has gone into both our two and four-stroke engines which share a series of common innovations. BetaMotor engineers have created the new range of Beta enduro RRs, being much lighter and better performing than previous models. Versions in 2 lighter modes with 4.7kg and those in 4 lighter strokes with 5.3kg. Weight is not the only asset of these new models, transmission, suspension, and engine have been improved.

　　The design was also revised by introducing a new rear wing, a new color for plastics and graphics, four-stroke versions, an exhaust drum with a completely new profile, and a new internal configuration.