SmartCarb For Beta Xtrainer
$674.10 – $898.20
Build Your Own Beta Better!
This 36mm SC2 model SmartCarb replaces the stock 36mm Keihin PWK in 250cc and 300cc Beta Xtrainer dirt bikes, offering crisp, clean performance, excellent fuel efficiency, and incredible ease of use.
Betas using the factory oil injection system REQUIRE the MagVolt® Throttle Position Sensor. Beta Xtrainers with the oil injection system removed do not require MagVolt® TPS.
2023-2025 Beta Xtrainer bikes REQUIRE the 2022 Beta Xtrainer airboot for best fit/performance. Order it with your SC2 purchase or from your local Beta dealer/importer. See Fitment Information tab below for more information.
Every SmartCarb ships pre-adjusted specifically for the bike for which it is ordered. 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 (if applicable) you use.
Questions about compatibility, sizing, or fitment? Contact Us!
Products shipping internationally may be subject to import duties/taxes.
Description
This SC2 SmartCarb replaces the stock Beta Xtrainer carburetor. It is a precision metering instrument that provides extremely fine fuel atomization, precise mixture control, and air density compensation in a single circuit, jet-less fuel system.
- CNC billet aluminum construction
- Patented single fuel circuit design
- Extremely fine fuel atomization
- Optimal air/fuel ratio control
- Designed & manufactured in the USA
Learn more about How It Works
See Dirt Bike Magazine’s SmartCarb Review
See Cycle News’ SmartCarb Review
Štefan and Richard –
hi, my friend and I got a smartcarb for our bikes, beta Xtrainer 300 2022 and 2023, the Carburetors are amazing, the power is more than enough and smooth, the engines stopped stalling at low revs and it has amazing thrust practically from idle. Tuning is amazingly simple and accurate, and the stability of the run is unreal, we often change altitude and the engines still run the same. A very good investment. The support from the company is amazing and so is all their work. Thank you and many other happy customers. Štefan and Richard
Olympos Andreadis (verified owner) –
Customer from Greece here (2023 Beta XTrainer).
Fully satisfied with product quality and performance:
– Ease of installation (plug and play with minimal adjustment),
– Amazing fuel economy improvement over stock carb (achieved same mileage as 4 stroke 250s)
– Super smooth low end performance, great response on throttle opening and clean top end (same if not better than stock carb altogether)
– Awesomely clear and straight forward quality manuals and settings recommendation documentation.
– Great customer support with prompt, same day, email replies.
Ask the SC guys for advice on your exact bike and type of riding to get to get the proper kit.
Very highly recommended and a great investment especially on a two stroke.
Anthony Potter –
Anthony Potter
I have a SC on 2022 Xtrainer an its a game changer love it, performance benefits are amazing the internal venting is awesome and the build quality is a sight to be hold . Looking to put one of the all black beauties on my 2016 Beta 300rr as well. THANKS SMARTCARB
Michael –
Worth every penny. Great out of the box and exponentially easier to adjust than the stock carb on my Xtrainer. Gas mileage and power delivery were significantly improved as well.
The best part is not worrying at all about temperature/elevation when gaining several thousand in altitude riding my local trails. Keihin carbs are great but the SC2 is way better.
Derrek Homewood –
I recently purchased a smartcarb for my 2018 beta xtrainer. It has transformed my bike. I used to climb monster hills with 90 degree inclines 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, taking 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.
Matt E –
I was in the market for a new woods bike and was pretty much set on getting a TPI bike. I would much rather spend my time riding than jetting, and with me living at near sea level and taking trips up in elevation to ride, it only made sense to go with fuel injection.
I ended up stumbling on a new 2020 Beta Xtrainer and absolutely had to have it. I love how light and nimble it is and with a 300cc 2 stroke piped for low end grunt and a softer suspension it was the perfect bike for the riding I do. The only problem was that it was carbureted… Big bummer… Well, I was told to check out SmartCarb as an alternative to fuel injection, and after researching, decided to go out on a limb and get the Beta with the plan being to immediately swap over to the SC2 purely for the carb’s ability to compensate for altitude density. This was a pretty big risk for me, as buying a new bike that now needed a rather expensive modification to meet my wants kind of worried me.
I got the bike, and out about 10 hours on it. The factory jetting/performance is SUPERB, but again I wanted the density altitude adjustment. I ordered and put on a new 36mm SC2 carb, and it was worth EVERY SINGLE PENNY. The bike (to my surprise) runs even better, gets better economy, pulls harder, and overall is the absolute best running carbureted engine I’ve ever experienced. I have been tuning carbs and building bikes/engines for over 10 years, and I am completely sold on the SmartCarb. No issues with the engine running hot, no electronics, ability to very easily tune if needed, and ability to ride anywhere without jetting changes has got to be one of the best advancements in carbs in a while. I have a Lectron carb on another bike, and although I feel it is good, it is definitely not as refined and does not have the response and grunt of the SC2.
Huge thanks to Tech Elevated for the support. It was hard to swallow the initial investment, but I was assured it’s all it was cracked up to be, and they delivered just that. I will now be saving my pennies to put a SmartCarb on my son’s bike and my wife’s bike. One of the single best mods I’ve done. If you’re on the fence, go for it.