My Yerfs are about 85 lbs lighter than the KPX, that's why I wonder about the Joyner performance more than the HH. When you run a GY6 with 650 lbs of load (frame and body) vs. a CN250 with 950 lbs, will you really get that much benefit from the power train? When you add a second person (wife @ 110 lbs) to the buggies, I have no doubt the larger displacement wins. I am not disputing Joyner's suspension or frame over the others - I think it's superior.

Well I guess you really are an idiot arnt you kell. I was trying to give info to someone who was looking for it. I have no desire to debate you. Here you are saying all this bs and then you pull up somebody elses comparison. So what you are trying to say is you have NO first hand knowledge on the subject and are just talking out your rear end. Most people are trying to get actual info not just your lame brain opinion.

I had a modified yerf, NOT a kpx and it was compared to a stock and modified twister NOT a Joyner. The results were as already stated. If the gentleman who started this thread really wants to know I have stats hanging around somewhere. If you look at the test you put up you will see it has had extensive engine work, ie 10.3 to1 compression, ported and polished new head, cam shaft. I had already mentioned that the yerf I was talking about had had all the mods that are normally done without getting into extensive motor work. Because that is what most do. With enough money and work you can make any motor put out silly power at least for a little while.

This comparison you put up actually proves my point, even with all the motor work that was done to the 150 it still wouldnt out run a slightly modified, very heavy 250 like the joyner.

But all of us on here who actually have some experiance with buggies get sick and tired of idiots offering there opinion with out any knowledge or experiance and try to pass it off as knowledge.

When you come up with these off the wall comments about what you "feel" why dont you tell us it is your BS opinion instead of trying to pretend you know what you are talking about. Then we can just ignore you and go on.

This fellow is going to go out and spend his hard earned money and he deserves better than to have you BS him into getting something he really doesnt want.

Getting back on topic. Having had a yerf, where you notice the difference is in the bottom end on the joyner. There is enough torque in the 250 to out shine the 150 even with the extra weight. Also the better suspention makes a huge difference because you can carry more speed through the bumps to keep your momentuim going, which makes a bigger difference than the extra power. Many times with the yerf I had to slow down quite a bit to go over rough spots that the better suspention just soaks up. You will however notice the extra width if you drive alot on tight trails, however one of the main things I remember most about the yerf is that it took alot of space to turn. Both of the 250s you are looking at will turn and handle much better than the yerf.

I appreciate all the input that is coming my way. I expect differences in opinion and even have my own biases. As long as we can continue to discuss the variants, I'm sure additional questions from others or me will continue. Maybe part of this discussion is for my own justification to spend 2-3x more for a used CN250 over a used GY6...

No need for that. There's a 250cc Joyner for sale in AZ for $2500 that includes a bunch of parts. It may be worth it to have it delivered. You're not that far away.

I posted a link on here for the ad on craig's list.

Shipping to CT from AZ was a few hundred dollars. Shipped the cost should be somewhere in the low $3000's. Just a thought.

Pretty sure the Joyner has the cfmoto engine in it.
If so you can get that used Joyner in AZ and do the
300cc big bore kit.
No xtra cc's in a head swap, though a performance
head would greatly enhance the xtra displacement.
Chris

I've never driven a Joyner, but I understand it's an excellent machine, and if it has the hi/lo selector, you should be happy with either.

The Hammerhead 250 provides good power in the "hi" range, but in the "lo" range (top speed about 25 mph), it will bounce me around pretty good, and I'm a very heavy guy. (It is rated at 18 hp.) Remember that the earlier HH 250's didn't have the dual-range ... I recommend you get one that does. It really makes a difference. You will get much more power in "lo," and a faster top end in "hi" than with the models that don't have the selector.

Whatever you buy, ensure you can get parts for it. A local service center would be a plus.

Interesting thread! I own both of what you guys are arguing about. Originally my modded HH 150GT would beat my joyner 250 everytime in a short drag race. If on a level ,open area(where I can get my 250 wound up in High gear) it will eventually overtake the 150. But only after 300, 400 hundred yards. I'm sure the weight of the buggies and driver's play a major factor. Now with that said, even with the weight, my 250 will out climb the 150 on any hill. There are trade-offs with any decision you make. FYI, My riding is here in Midatlantic-wooded narrow trails and fields-no desert experience. Just my one cent...

The owner of Joyner responded to my inquiries and I think was taken back at resale prices:

<B>...This is a 2007 Sand Viper, it has approx 10 hours on it (if that). No we are not a dealer, no modifications or add ons - its stock - Its a fun machine. MSRP on this was originally $4499., plus assembly , tax and freight $5320. This unit also comes with brand new paddle tires for the sand... </B>

I responded with the following:

<B>...Thank you for the timely response. Team Joyner USA must have dropped the cost to the dealers since they are now advertising MSRPs below $4000 http://teamjoynerusa.com/250ccSANDVIPER.html and there are number of dealers selling them for $3500. I have been running two 150cc buggies and have been following the online forums http://www.buggynews.com for pricing and product guidance, so please do not feel offended by the numbers I have disclosed to you. You picked a nice buggy - Otherwise I would not be showing interest. This current posting in Pheonix is close to what these buggies go for nationally on the used market http://phoenix.craigslist.org/mcy/497774652.html...