just wondering if anyone has tried the new pitster pro mxr in the 65cc youth class.  curious to see how it compares, might have to get one.

It wouldn't come close to competing against a skilled 65 race bike rider in the 65 class. It would take a dang-near pro-level rider to stay up with those crazy-fast kids in that class.

If it's for a kid to ride in that class and race, go for it, but it wouldn't be competitive. Otherwise, Sean Cantrell, and those other national-level kids would try it at some races. I think someone ran the Polini pitbike at Branson last year. It was not competitive.

The MXR isn't designed to be a "pitbike". It's a 110cc four stoke designed to be legal to race against 65cc two stroke motocross bikes. I've seen a video here or at PlanetMinis.com of one getting a top 2 or 3 start against a gate full of KX and KTM65's.

The start doesn't surprise me. But then the rest of the race what happened? I've seen the so-called Pibikes converted into race bikes, or whatever, a PitPro grown from the factory ready to race, and even with grown dudes on them that are fast, they have a tough time against even 10 year olds.. Just sayin'.. you guys go ahead and line up if ya want, but you'll be at a disadvantage. I'm tellin' ya. I've seen it....

Damn Hook'em get a Job or is surfing the internet your day job...LMAO

actually the pitster MXR is a 110cc NMA legal Mini Cycle racer
Short stroke / big bore over square configuration type engine similar to modern 4 strokes and with optional +R roller rocker head its even faster

do some reasurch here and you will find yx125 and yz250f are near the same peak HP

basically its a similar comparison
and The Pitster Chassis is way more advanced that the KX65 chassis
i do agree it will give a bigger advantage to a less advanced riders AND there may be a some advantage to a very skilled rider WITH fully worked 65cc
but overall its a great machine

please contact me directly for more info
vince

I agree with hookem. You may be competitive in the 65 class but I'd be willing to bet it'd get smoked by any of the top 5 riders.  

How are they weight wise compared to a KTM 65 for example?

My Son has a Polini 65 and belive me when I tell you that it would flat out kill our 125cc pitbike. Our Pitbike had the better of the china motors and flat out riped but man you really cant beat the 65cc 2 smokers. Unless you have a lack of traction where the four stroke will be way smoother on power. In a slick or mud race I would put the kid on a 4 stroke on anything with the traction hello 65cc...


Hell now that I think about it, it was everything I could do to keep up with the boy on his Polini X3 (Me on the SSR/Jilian(SP?) 125) but that probably has everything to do with the rider and not the bikes....

you just have not ridden these types of motors yet

that 125cc pitbike motor your talking about runs like an xr200 compared to a crf250

its ok TELL it like you see it
but i see 2000 all over again with a new style 4 stroke taking over

T Bolt USA said:

Perhaps a "ride day" would help your cause?

Vince, didn't you or Gary have some race footage of the MXR110? Maybe you could post it.

Wandell said:

theres some avalible and now that hr 4040 lead law has quited down im sure this will get going again

QuickSilvers said:

Don't feel bad, I couldn't keep up with my delinquent when he he really started riding his Polini X3......and now on his XP65? Not a prayer. I just sit and watch in amazement.

Greg, you able to hang with McCay or do you get spanked too?

Phil

Heck from what I heard Greg was behind when McCay was on a Stock P Dub...But then again you cant believe anything those guys running yellow say...LOL

I got rid of my dirt bike last year. One.. because this sport is expensive, and I needed to invest in McCay's racing. And two.. I realized really quickly, that I wasn't near as good, brave, or talented as the kids, and I had better just stick to wrenching instead.

Tbolt what kind of HP are you seeing out of a Legal 110cc MxR?

T Bolt USA said:

You seem to have a dog in this fight since you sell what you are pushing which makes me skepticle. I couldn't find any published weights on your site. And isn't this the peewee forum where we are talking about bikes for kids?

  Disclaimer: All products offered by TBolt USA, LLC, including the Pitster Pro *LXR160R Twelve[lxr-160-12], are only to be used by adults over the age of 18. Motor Vehicles are not toys, and can cause bodily harm. It is highly recommended that all customers take lessons and precautions to prevent injury.

Ok, I will come to Tbolts rescue( the reference to the bike you posted from Tbolts site is the LXR not MXR), The MXR110R can and does run right with the 65s, it is a hand built 110cc fourstroke, completly different than the pitbike honda based engines you are referring to, I personally brought this bike through years of development with Pitster, it is about ten pounds heavier than a Kx65 , but has twice the TQ, we put a rider that has won championships for KTM, Cobra, and Polini on it at a practice track with similar riders and he ran with them easily. Instead of going up 6 gears and down 6 gears and up and down etc, the rider would run up 1 and down 1 per lap giving more time to concentrate on the racing, the suspension has USD forks 8.5 inches of travel, rear linkage with high and low speed compresion adjustments along with rebound 9.5, has a super low center of gravity , wave rotors , aluminum swingarm, billet hubs and all the other good things big bikes have.
Here is a video of a preproduction bike with a local kid( not the national championship winning rider) that ran mid pack on his KTM, still running mid pack but as we progressed and he got the feel of the fourstroke, the bike improved, he started running up front. As you can see the bike can and does run with the 65s, even has that little extra TQ to get over the jumps and pull down the straights, again this is a preproduction bike in the video, and the actual production bikes are much better, the dang lead ban is the main reason they are not all over the place right now, but we hope you will see more of them soon.
For those of you that say Bring it?? unless your kid is totally untouchable, whoever he races against right now at your local track,,, IF on one of these would STILL be racing right  there with him. these bikes are different,but they are competitive.

Now that's more like it! But you need to tell us names of the championship riders and have them give a testimonial - it would make people like me shut up. This is the Internet where you have to prove its not snake oil you are selling.

You have to remember a that all the crappy Chinese knock-offs ruined the rep of pit bikes in most peoples eyes. And I threw in tbolt's dislaimer as a joke - I know it was just to get around the lead ban.