38MM SmartCarb To Suit Beta,, TM, Rieju

The all-new SC3 model SmartCarb replaces the stock Keihin PWK in Beta, Sherco, TM and Rieju 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. See Fitment Information tab below for more information.

Every SmartCarb ships pre-adjusted specifically for your bike setup. Please provide information in the comments about any engine/exhaust modifications, how you ride (riding style), and what fuel selection and oil premix ratio (if applicable) you use.