Meet the All-New SC3

Ultimate carburetor simplicity

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This isn't your grandpa's carburetor. 

CloudForge™ Venturi Design
O-Ring Float Bowl Sealing
Right-Hand/Left-Hand Configurations
Reduced Part Count
Cost Savings
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Fuel What Excites You

everything you need, nothing you don't

The SmartCarb is an ultra-efficient, single circuit, mechanical fuel system that increases performance, improves fuel economy, and drastically reduces emissions outputs.

Our patented technologies have been EPA tested and certified, proven in the extreme environment of off-road motorcycle racing, and enjoy professional and recreational use worldwide.

8-10% More Power
25-30% Greater Fuel Economy
50%+ Reduced Emissions
Elevation/Temperature Compensation
Tool-Free External Adjustability

Precision Instrument

SmartCarbs are designed and manufactured in the USA with exacting tolerances for precise metering of both air and fuel.

The All-New SC3 is the culmination of 55+ years of metering rod carburetor concept development, offering unparalleled performance & ease of use.

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Ultra-Fine Atomization

Our patented metering rod and algorithmically derived venturi profile work together to provide extremely fine fuel atomization, creating more power while using less fuel.

Competing mechanical fuel systems rely on imprecise power jets and/or multiple circuits, increasing complexity while decreasing efficiency.

Tool-Free Tuning 

Easily tune the SmartCarb by hand track or trail-side in seconds.
No tools required and no risk of dirt/dust ingestion.

Responsibly Fun

Single circuit metering rod fuel atomization enables drastic reductions in exhaust emissions through increased combustion efficiency. Integrated, internal venting makes the SmartCarb a sealed system with near zero evaporative emissions.

No more fuel spillage!

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Ain't No Mountain High Enough

Patented internal float bowl venting keeps the SmartCarb in tune for a much wider range of elevation & temperature changes compared to competing fuel systems.

Tested up to 22,000 feet!

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Twice As Nice

Mirrored Right-Hand and Left-Hand configurations now available with the all-new SC3 model!

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Dive deeper into our patented technologies.

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Get Equipped!

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testimonials

I have been running the SmartCarb for almost a year and so far it is the single best upgrade I have done to my 2018 KTM 300 XC!

Not only do I have a better running bike – easier starting, better throttle response, and more power – but I rest easy knowing that it runs the same whether at sea level or 13,000 feet.

I love the sealed nature of the carb – no dirt or water getting in through the vents when I play submarine in Idaho or baja racer in the silt beds. Whether I am dual sporting and want to lean it out a bit or ripping at the dunes – tuning is just a few clicks away without even having to take my gloves off!

Kenny S | KTM 300 XC | 36mm SC2

I purchased a SmartCarb for my 2018 Beta Xtrainer and it has transformed my bike. I used to climb monster hills out here in the 4 corners regions of New Mexico in 3rd gear. Full throttle and a prayer, hoping that I would make it. Now, I take those same hills in either 4th or even 5th gear in some cases. So much more torque in lower gears and real climbing power in higher gears.

If you want more speed, I suggest the 38mm SC2. If you want more climbing power, the 36mm SC2 gives it in spades!

Derrek H | 2018 Beta Xtrainer | 36mm SC2

I have had my 36mm SC2 on my 2017 TC 150 for little over a year now and it is absolutely perfect. I ride as much as I can in as many different places as I can. From moto to mountains the performance is incredible. From the get-go out at the track I noticed how much harder it pulls out of corners. My bike is so much more alert and crisp now. Steep mountain trails where you typically only see 300cc bikes – I can go anywhere they go with how consistent my bike runs.

Bryer H | 2017 Husqvarna TC 250 | 36mm SC2

I bought the 38mm SC2 SmartCarb for my 2003 CR250R. This carb is absolutely the BEST product I have ever bought for any of my bikes. I recently talked a friend into getting a carb for his YZ125 and will continue to share my experience with others. Customer service is excellent, and the product is phenomenal. The 38mm SC2 SmartCarb is worth every penny times 2. Thank you for making such an excellent product.

Jon F | 2003 Honda CR250 | 38mm SC2

I pulled the trigger on 28mm Smartcarb for my 72cc Polini Corsa Honda Elite. After sending my build specs carb came in and the tuning was pretty close out the box. Throttle response is incredible smooth all the to full. My fuel mileage went up a ton and the bike runs cooler. I thought my PWK Polini was a badass carb, but this Smartcarb blows it away. Well worth it.

Christian P | Honda Elite | 28mm SC2

I bought a smartcarb for a Polini Thor 202 paramotor. The factory carb was nothing but a fight. I installed my new SmartCarb and it woke this engine right up. It came pre set and I didn’t touch a thing. It makes a ton of power regardless of my altitude, it starts literally on the first pull every time.

I am blown away at what this carb did for me. Hats off to the crew at SmartCarb!

Kyle G | Polini Thor 202 | 28mm SC2

let's do something new

A Radical Global Impact

We are committed to unleashing a new era in small engine carburetor technology to fuel radical transformations in recreational and utility transportation and power generation industries around the world.
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