Mine came with a 48T rear.
So far I'm enjoying the great handling of my GP300 and just swapped one fork spring only to a 0.46 kg/mm spring. I had an old 5.5kg/mm Sachs shock spring from my departed EC450 which also happened to fit in the KYB shock.

Keg, what are your current carby settings?
Still trying to sort the dreaded 1/4 throttle splutter + spooge & currently running 35PJ NECG #2, 172MJ with AS 0.75 turns out. Getting a bit more snap off the bottom now, then splutter followed by ballistic mid range.
I'm currently waiting for NEDH needle to show up at my local Suzuki dealer so I can try 38PJ NEDH#2, 172MJ.

Hi Ecrider,don't forget Keggo's running a 250.
I'm having a ball with my GP300 with n3cj #2,175 main,42 pilot,air screw 1 turn out.power valve 2 1/4 turns out.
altitude 200m-1150m.
GRO offroad 1 @50;1
I don't give a toss about the spooge hype,but get bugger all anyway.....

Me too, Sean - nil spooge & nil lean condition ('18 EC250 Six Days). A little spooge is ok, an oil slick running down the swingarm & some drops on the rear brake; not so much!

Thanks guys, I thought Keg had a GP300.
I tried 45PJ N3CH #2 178MJ (close to N3CJ) & found 2 clips down to be too lean at 1/2 throttle, but spluttering low. I might retry as 42PJ N3CH#3 175M
I'm using Penrite synthetic 50:1 at 100m.
Float level set at 8.5mm

Gibnut, I'm running 40 pilot, 172 main, NEDW #2, AS 2 turns out ('18 XC250). 2000-5000 ft elevation. 70-90 degrees F. I still feel like the bike is a little rich and am still getting a great deal of spooge. I am wondering if the cable actuated choke is contributing to this? I will swap with plunger choke and re-evaluate.

Oil brand & ratio, too? I'm on Motul 710 @ 2% with 98RON fuel. I've gotta say, the 250 has a big squish gap - 2.06mm - and it's taken a bit of fiddling to get the jetting set how I want it. All good - nice to get to know the bike, too.

Sorry for the thread hijack..

Take it with a grain of salt as they are also selling a product, but the fellas at RK Tek say the head on the GG 250 is very inefficient, with a lot of room for improvement. I have no first hand experience, but maybe something worth keeping in mind as you continue to dial in your bike.

Indeed, Cactus Flat. Here in Australia, we have a 2-t tuning house in Melbourne called TSP. My head will probably go to them for attention when I do my first top end - unless the 250GP head is shown to be a marked improvement over stock.

After my mate bought one 4 weeks ago and I could test ride it I immediately ordered one and will get it tomorrow.

The reason why I bought it and why I'll sell my KTM300/17 is that the suspension and brakes are the best I ever tried and I tried a lot. I have a completely revalved and tuned suspension on the Kato but the KYB stuff is even better right out of the box.

And I get the brake I always wanted. Although I use the same Nissin master on the KTM it does not even come close to the Gasser's stopping power. Its amazing.

Regards from Europe
Doc

Mine is a GP300. Nedw middle clip 42pilot and 175main on 98 pump gas in Australia

I will go a 180main as it feels a little flat up top in sand.

I get some spooge when lugging the bike a gear higher in slippery or rough terrain. But that is the whole point of lugging. It makes lower velocity through the carb and runs very rich so it is smooth torquey power delivery that won?t break traction, but you get unburnt fuel out the back. I don?t try to jet that as it will be lean in the fast stuff and less torquey in the technical terrain.