RK TEK cylinder heads are the best built and best performing two stroke cylinder heads there are. Period. None of the other aftermarket or custom heads come close, no matter what they say on their YouTube videos about them. There’re the only KTM head with a patented design and the other guys wish they had a head that came close to the performance of the RK TEK heads.
RK TEK HAS THE ONLY 100% MONEY-BACK GUARANTEE IN THE BUSINESS.
DEVELOPED TESTED AND PERFECTED IN THE HIGH ALTITUDE SINGLE TRACK OF IDAHO AND 100% MADE IN THE USA
These are the best heads for single track, woods, elevation, mountain riding and trail bikes there are. How do we know that? Because we've bought and tested all the heads from the other guys and measured them against ours and they don’t have the smoothness and power of ours across the entire band.
We've had some that made a nice gain at a particular spot in the band or had some impressive single area characteristics, but none of them had the full and complete power band improvement and gains that ours make through the entire throttle range.
RK Tek has been at this longer then anyone else, have put more work into it and have more loyal and satisfied riders then anyone else.
When you have a narrow power-band (stock head) the higher gears are not very usable because the engine will not supply the needed torque at the lower RPM. So you're forced to ride in the lower gears in order to maintain any torque.
After the head install, the torque is produced at a MUCH lower RPM than before. This allows for 1-2 gears HIGHER when in the slow and technical OR the heavy loaded hill pulls. The higher gear running allows for faster overall speeds and less fatigue on the rider because he doesn't have to "work" as hard to keep traction. Almost all will find they are faster and in more control when running the higher gears. With this confidence increases as well.
Please check out this awesome video from DIRT BIKE CHANNEL regarding this head.. MANY questions can be answered there
NOTE: Dyno chart is from one of our customers.
It is clear the added torque the head provides. What MAY not be clear is that the dyno run with the RK Tek Head was started at a much higher RPM (3500 vs 2500 RPM).
This is the reason the chart shows no power below 3500 RPM.
You can be assured the power with the RK Tek Head is MUCH greater than ANY other bolt-on part you can purchase, ESPECIALLY at the lower RPM..
In fact, the head offers significant torque increases over ANY other head at ALL RPM.
DYNO CHART
Great way to get a huge performance increase at a cheaper cost!
The Stock 250 & 300 head (especially 2014 and newer) is a VERY inefficient design and leaves A LOT of Performance on the table.
We have developed a TRUE Performance Enhancer with this Custom Billet Head designed specifically for mountains and single/dual track riding.
This head will widen the engine's effective power-band considerably and allow for a much more linear power delivery.
This head is unequaled in its performance. Cooling is also increased. A cooler running engine will last longer and produce more power.
Testing has shown, in many cases, this head allows for the hill to be pulled in the next higher gear . What you would normally pull in 2nd gear you can now pull in 3rd gear.
Porting Packages are also available. This will wake up the engine even more!
ANOTHER HUGE bonus with the addition of the head is improved fuel economy! This is usually, the result of the higher gear running.
Most find they can run an extra 10-20 miles further on the same amount of fuel!! Now who doesn't need that???
Head is available and custom made for ALL riding elevations and octane..
This head offers performance gains UNMATCHED by ANY other bolt on.. You will NOT be disappointed!
SILVER ONLY, NO LONGER AVAILABLE IN BLACK OR ORANGE
Fitment:
2017+ KTM, Husqvarna 300 carb and TPI
2021+ GasGas 300 carb and TPI
WHEN ORDERING PLEASE PLEASE LET US KNOW IN THE CHECK OUT NOTES ABOUT THE FOLLOWING:
- RIDE ALTITUDE
- FUEL USED
- RIDING STYLE: ENDURO / SINGLE TRACK, MX, FULL RACE