SmartCarb For Rieju MR 300
$649.00
The torch burns bright for Spanish Enduro Tradition!
The all-new 38mm SC3 model SmartCarb replaces the stock Keihin PWK carburetor in Rieju MR Pro, Racing, Six Days, and Alfredo Gomez Replica edition 300 dirt bikes, offering exceptional performance, efficiency, and 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 Rieju MR 300 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
Top Rieju USA hard enduro racer Quinn Wentzel is SmartCarb Equipped
Marcello –
With the 38mm SC2 with DF0-9 metering rod my Rieju MR300 has truly became a total weapon, a hydrogen bomb. It’s very reactive with scary bass torque and it is always ready to rev. In the mids and highs it is impressive. I didn’t think it could change so much. Thanks for everything!
Scott Staley (verified owner) –
Installed an SC2 mainly for the fact of no fuel leaking on my hitch carrier but the throttle response is amazing and the fuel mileage went up a tremendous amount. The only downside to this carb is the cost but I’ve always said you get what you pay for and it’s definitely worth it.
Alfredo Gomez – Rieju Factory –
I was surprised by how good the SmartCarb is. I installed it and did nothing and it works perfectly. It feels so good and the fuel consumption is unreal now. I am able to go like 40% farther than before. We’ve been at high altitude and at low altitude and it is very good!
Quinn Wentzel – Rieju USA –
The SmartCarb instills greater confidence in my riding. The power and response right off the bottom is right there when I need it without missing a beat and the consistent, linear power/performance is perfect for hard enduro.