I am posting this from an owner of a mint condition 250r who has purchased a new GG300. It was actually Pro-X 310r. If anyone is interested he is selling his r now. I can send you pics if
anyone is interested. This is what I asked and what he said:
Is it fast?
Yes! I took it out to a woods track and a gravel road to see how it would run against some other popular quads. It will smoke a Z400 from beginning to end on a gravel road drag. Even with the
best Z400 pipe made (CT), it was closer but no match. I also ran it against an R with a Pro-X 310 cylinder, ported, pipe, aftermarket chassis and the same carb and Maxxis Razr tires.
The R was no match for it either on both acceleration and top speed. This R had a fresh motor on it and all of the racers that I raced against were experienced racers. It ran real well in
the woods, the only disadvantage was the front end width. With it being slightly wider in the front than my XC 310R, I was a bit afraid of smacking a tree.
How is the powerband?
Once I jetted it in, It was excellent! Stock, they are too rich, especially in the mid range. Your first impression is that it doesn't have a lot of lows and the power isn't super smooth.
After the jetting it has lots of lows and smooth power yet it will scream on top and rev quite higher than a 250R. I found that in the woods I could lug it like a 4-stroke to near idle speed
in 1st thru 3rd and it would pull hard and clean. Very controllable power, good for XC racing.
You can clearly hear the exhaust tone change when the powervalve opens up. I found that the in
the woods the valve was usually closed which gave me excellent low end power, which allowed me to maintain traction which also made it a good hill climber. When I would come out of the woods into a field, just a quick slip of the clutch to get the revs up, the valve would open and it would flat out scream. If you were in 1st through 3rd or if your revs were already mid to high
in 4th through 6th, clutch slipping was not needed. We all do this with our R's. |