It was like Christmas for the KX250 and me this month as a host of updates and upgrades came our way and, man, what a difference they’ve made. I’ve always thought this bike was a very capable machine with a solid motor and suspension package. I have been more than happy with how it performs on the track; however, I have also quietly been searching for a little more. The stock motor is mellow, so there’s been that chase for more power and a freer feel to lug my 85kg lazy arse around.

 

Well, massive shoutout to the folks at Pro Circuit Australia because they stepped up and sent out a brand-spanking-new Pro Circuit T6 exhaust system. This is the new setup that PC runs for 2026, which passes the new 109dB rules and, I have to say, looks the part as well. I’m all for quiet bikes too and, honestly, I have found PC systems loud in the past, but not this one. This one is spot-on.

 

Right away, I found the bike was livelier throughout the rev range and the entire torque range has been lifted too. It has more response off the bottom and pulls better through the mid and top. It’s a little bit lighter than the stock pipe too, which is awesome. Overall, the PC system has been a welcome addition to the KX250 build. It has lifted the entire spirit of the bike and gives it that factory look too.

I’ve also been playing around with some mapping to go with the addition of the PC system and, thanks to the Kawasaki Rideology app, it’s pretty simple. Download the app, search KX250F maps on Google, play around with some numbers and away you go. It took me a little bit to understand the concept of the app, but once I read the tutorial within it, I was away. So far, I have found the Keefer Inc map to be the most potent one yet and that is what I have settled on for now. It elevates the power of the bike again and gives it a lot of response throughout the rev range.

 

Another little mod that has been done is tidying up the airbox. These KX250s come with a tiny air filter setup, the smallest I’ve seen in a long time. As a result, they need more air. There is an aftermarket system that gives you a bigger filter and air boot, but it’s expensive, so I had my long-time supporter Uni Filter hook me up with their special filter and CNC cage, which is much bigger and still fits in the airbox.

 

It’s a small mod but makes a big difference. There is also a bunch of plastic within the airbox that can be cut out to create better flow, as well as a few holes in the side cover. A small hole in the bottom of the airbox is welcomed too so it can drain. This has been a big help as well.

 

And finally, maybe the coolest piece of the puzzle. The legends at Holeshot Graphics have outdone themselves and put together an epic 2004 Chevy Trucks replica kit for this bike and, I have to say, this may be the best-looking bike I have ever had. Cam absolutely nailed this kit and I am so pumped to show it off to the world.

I grew up idolising James Stewart on his KX125 and, to this day, still watch the races from that era. It is epic to have that iconic Chevy Trucks logo on my bike with Holeshot’s own little twist, featuring all the logos of the legends who support us. There will be a race report from the AEC in Kempsey but, for now, I’m happy to sit back and admire my factory-looking weapon.

 

 

WARRANTY
N/A

SO FAR

TOTAL HOURS
22+

MODS THIS MONTH
Pro Circuit T6 exhaust system
Kawasaki Rideology mapping
Uni Filter filter and CNC cage
Airbox modifications
Holeshot Graphics 2004 Chevy Trucks replica kit

MODS NEXT MONTH
None