SmartCarb For Beta 300 RX
$649.00
Push the Limits of Rideability
The all-new 38mm SC3 model SmartCarb replaces the stock 38mm Keihin carburetor in Beta 300 RX motocross bikes, offering unbeatable performance and incredible ease of use.
Every SmartCarb ships pre-adjusted specifically for your bike setup. Please provide information in the forms below about any engine/exhaust modifications, how you ride (riding style), and what fuel selection and oil premix ratio you use.
Questions about compatibility, sizing, or fitment? Contact Us!
Products shipping internationally may be subject to import duties/taxes.
Description
What’s New!
The SC3 SmartCarb replaces the stock Beta 300 RX carburetor.
This isn’t your grandpa’s carburetor. The All-New SmartCarb SC3 brings carburetion firmly into the 21st century. It is a precision air/fuel metering instrument that provides better-than-EFI fuel atomization, precise mixture control, and automatic air density compensation in a single circuit, externally adjustable, jet-less fuel system.
SC3 Upgrades:
- Patented CloudForge™ Venturi Design | Optimized signal generation and fuel atomization
- Moisture Management | Improved throttle control in extreme humidity
- Larger Vent Scoop | Faster float bowl venting/fluid communication
- Blended Slide Cutaway | Cleaner off-idle throttle response
- O-ring Float Bowl Gasket | Improved sealing and sleeker look
- Doubled Fuel Rate | 2X fill passages for quicker float bowl fueling response
- “Tucked” Fuel Fitting | Improved fuel line routing
- Complete SC3 Design Overhaul | Better fitment with smaller form-factor
- Reduced Part Count | Cost savings passed to our customers (-$100)
- Lighter Weight | 12% reduction
SmartCarbs are proudly designed and manufactured in the USA!
Learn More about How It Works
See Dirt Bike Magazine’s SmartCarb Review
See Cycle News’ SmartCarb Review
Bryer Hansen –
The SC2 38mm was the finishing touches on my Beta 300 RX. I delayed installing it because I settled for how well the stock carb performed. Wow, was I even more impressed when the SC2 further improved the performance of my bike. For starters the fuel efficiency went way up! I am using about half the fuel that I used to. I ride all over Utah, Idaho, and Nevada, and with the elevation changes from 1,000ft to 12,000ft the smart carb is a no brainer. My bikes starts if you breathe on the start button and idles perfectly. You can crack the throttle with zero hesitation. The smoothness in corners is unreal. The consistency is phenomenal. I will continue to buy two strokes and install smart carbs on them!