36mm SmartCarb For 2025 Beta RR300 Race

The all-new SC3 model SmartCarb replaces the stock 36mm Keihin PWK in Beta 300 RR, 300 RR Race Edition, and new 300 RR X-Pro dirt bikes, offering crisp, clean performance, excellent fuel efficiency, and incredible ease of use.

Choose the 36mm size if you spend all of your time at low revs riding trail, woods, singletrack, enduro, or introductory tight/technical conditions where mellow power and fuel economy are a priority. Choose the 38mm size if you ride more aggressively, prioritizing the mid-range by riding fast enduro, GNCC, supermoto, desert, or if you are snowbiking.

Betas using the factory oil injection system REQUIRE the MagVolt® Throttle Position Sensor. Betas with the oil injection system removed and 2020 and later Race Edition Betas with factory TPS do not require MagVolt® TPS.