2007 HRC 4 stroke now available!!

lol at two stroke guys whining about reliablility and maintenence.

 

Enviornmental pressure, as evidenced in motocross, will spell the end of two strokes anyway. At least this is a bike that is a pure racing machine instead of a converted grocery getter (SV, GSXR, R, CBR).

And it doesnt matter if they make less power than the two strokes if all the two strokes are outlawed. This is the very reason that I am getting my love of the smokers out of my system now, while parts and such are still available.

 

the bike being shown is for a class in Japan called GP-Mono. The bike is out of Harc-Pro (not HRC, however Harc-Pro does work closely with HRC. Think Yosh and Suzuki relationship).

There is some talk about this bike on HRC's website in Japan. Mostly about what the bike is. An RS125 chassis with a CRF250 engine. Starter removed, and re-carbed/jetted. Not something I would expect out of HRC as a full production racer. I am thinking HRC would spend more time (and money) on developing a chassis/engine combination that was perfectly matched, but hey maybe they got real lucky and it was a perfect match?

As for the future? This is where 125 2-strokes are going. The 250 replacement will most likely be a 450 four stroke. I am sure with the switch from 2-strokes to 4-strokes already announced for the 125/250 GP classes Honda, Yamaha, KTM and all the other manufacturers will be working on something sooner then later, this could be the start of Honda's efforts (working through their relationship with Harc-Pro to do some initial works in the GP-Mono class).

As for the 2007 RS125/250 deposits being taken by HRC that someone mentioned? That was for the actual Honda RS125 (2-stroke) and RS250 (2-stroke) bikes. There was "talks" about the 250 having updates but that never came to fruition. The RS125 changes for 2007? Not sure, as I don't follow the 125's that much (well I follow them on the track, just not in the news ).

 

You guys kill me... no doubt the bike is for real. Hell, there are guys in the US that have 'made' them.
Just because someone hacked one up and it's in a magazine doesn't mean it's about to go into production. Please don't be that naive.

I think we all know/realize that eventually (or probably) the 2-strokes will be replaced with 4-strokes.

I'm all for it if it's better, faster, and more fun than the 125s. But you won't see me on one until it's "reliable".. meaning the bugs have been worked out and there are replacement parts readily available. I don't wanna run some untested frakenbike that takes 4 weeks to get parts for.

 

Emissions laws are not the reason 2 strokes have been outlawed and will eventually die.......reference.......most of Italy ( where my wife and I have a house as well, so we know this with personal experience) allows and runs small cc 2 stroke engines bikes/sccooters and yet their auto emissions laws are strengint beyond belief....Italy for example taxes everything on BHP....the more BHP your car makes, the more tax you pay annually to drive it.....( it also means the more power, the more fuel, the more exhaust....) you start to see the picture....????
2 strokes were outlawed simply using the "green" aspect of OUR culture as the why....doesnt mean its the real reason, but it certainly makes for a plausible story....and we live in a country of 3 and 4 car households belching tons of cubic waste into the environment daily....so sure, outlawing 2 stokes because of their "smoke" makes sense to help the environment......A friend in LA whos a mechanical engineer did a study in college on engines....guess which engine was most effecient and put out the least amount of waste????? you got it, a 2 stroke.....! (the bad ones they outlawed)
Diesel was second, Gasoline combustion was 3rd...........Like Mike says, dont be so fast to believe weverything you read.....

As 2 stroke users, we all know that they are easier to rebuild your self, cheaper, and just a hell of a lot of fun.
4 Strokes, are push a button, turn a key, bumpstart or whatever...and down the road you go...until it breaks...and then most of us say, ahh hell take it to the shop and let them deal with it..$$$$$$$$!!!!
4 Strokes are all about one thing only....$$$$$$$ and the increasing generation of those $$$$$ by the manufacturers.......no other reason. (IMHO)

Oh yeah,..... did I mention I also partly own an Environmental Waste Remediation company...?? ( means I'm used to dealing with EPA yahoo's)

When its all said and done, those who want to ride the new toy will get one..those who are happy with their current steed's will ride them until they no longer have parts, or a class to ride them in...and then begrudgingly either retire or go race something else...

 

As ripped from the USGPRU string:


START
PostPosted: Thu Mar 15, 2007 11:30 am Post subject:


So its for the GPmono classes, that run in other countries.. From the info I have found, and I suspect its similar type setup as to what myself and some others have done. Its a standard 2007 RS125 with a retrofitted 250 motor. Aaron Hammel has a bike very similar to this, that he did himself. Its a 1998 I think with a 250 yamaha 4 stroke, very trick setup, and very fast. slipper clutch and everything.
I have a 1994 RS with a CRF100F motor in it, and Benny Solis and Ryan Matter both are running CRF150R motors in their 1998 RS's, all of these are for the mini races. It requires a bit of modification to the bike, and the reason the tank probably looks different is that the 4T's are taller, so you either need to clearance the underside of the tank or make a new one to accomidate the valve cover, which is what I suspect they did for that cost.

Also from the info I have seen its sold by HRC but the retrofit is being done elsewhere, not sure of the company. But I bet Chuck can chime in on this as he is there.
I have read a lot about GP mono racing and from the pages I have seen they have whole classes running 4T motors in RS type chassis over there. And I know they have been doing similar stuff in Europe for years, taking old 125 and 250 bikes and putting in big 4T thumpers for the Mono classes.
It should be a fun bike, the thumpers still lack the top end of the 2T, but gives a nice drive out of the corners.


_________________
-fast kids are cool

END

 

That is why I don't ride Honda's. As they are the EVIL EMPIRE, Yami's and Aprilia's for me and if KTM sold one, I would have one too!!!!

 

I like the fact I can do my top-end on any two stroke. I've heard guys spend $1000 to redo the valves on the Cr250F or CR450F. That why some guy use there motocross bike to that point and then sell them for someone else to deal with it. I'll stick with the two-stokes. I like the smoke. To hell with AL.

 

http://www.spagforth.com/rsxv550_project_log.htm

something like this perhaps???

 

I couldn't get my scanner to work, but here is a link to the bike:
http://www.motobum.co.jp/index_j.html

Ecumike, it is not a hacked up bike like what's made in the States. If I find more, I'll post it up.

 

Did your friend measure the amount and size of particulate emissions? These types of emissions are particularly bad for the respiratory system. Regardless of the anthropogenic global warming debate, the effects of particulate, nitrogen and sulfur emissions are fairly well known. Go for a run in Mexico City in the summer afternoon and you'll get a good idea of what I'm talking about.

Also, in general, all types of motorcycles put out more pollutants per mile driven than modern automobiles. The newer street (non-modified!) bikes are much cleaner though, which I think is a good thing.

 

We have a buy in our club that did a CRF450 motor into a 97 RS125 chassis.

 

I dont know if he did or not, but lets look at the reality....we dont have that many Bike's per household on the street in America.....in Europe its not uncommon to find at leat one scooter, bike per household...in america?? I Think not, definately still a "smoke screen" in my opinon...(the outlawing of 2 stroke due to harmful nature of engines)....has anyone done a rating on jets???

 

Actually, I more or less agree with you. In addition to the pollutants, jets also seem to have an effect on cloud cover and weather systems. There was a study published in Science or Nature about this. The scientists were able to study cloud formation after all flights were grounded in the days after 9/11 and compare this to weather patterns before that.

Haven't kept tabs on the scooter/2 stroke market in Europe, but are the new EU emissions rules having an effect there?

 

There you go. It just cracks me up sometimes what our governamnets sell us and we as citizens "buy" as the why of a new redulation, law, etc.

Havent seeen any strong push to change 2 strokes in Italy yet....( doesnt mean it wont happen) I think there are just too many people dependant on them for cheap transoportation...

Anyways...whos buying a 4 stroke GP bike here? Any serious takers drop me a personal email and we can talk more...

 

Well Frankie when those bikes put out 45 HP and weigh 150# I'll sign up, untill then I'll ride my Prilia with 49 and 154 lb's

 

I'm with sbroker--- I don't know what this package actually is, but its not true HRC stuff. I'm sure its quality, but to me its not much more than a fancied up frankenbike that a lot of guys have already made. When I see it on HRC's site, outperforms a 125 2t clearly, and being sold by RSC...I'll drop my deposit on one!

 

Nice but I want a 450.

 

I'm studying Japanese, so here is a roughly translated spec sheet on the GPMR250X from the December 2006 "Cycle Sounds" Japanese magazine. I'm going to the Tokyo Motorcycle Show at the end of the month. If I see anything about the bike, I'll post it up.

GPMR250X:
I don't know what the translation is: 1800x570x985mm
Wheelbase: 1215mm
Weight 71kg
Frame: Aluminum
Caster: 23 degree, 30
Trail: 84mm
Front Suspension: Telescopic
Rear Suspension: Prolink Swingarm
Fuel Capacity: 14L
Engine Type: 4 Stroke OHC 4 valve
Engine Size: 249.4cc
Bore and Stroke: 78.0 x 52.2mm
Horsepower: 42.9ps/11000rpm
Torque: 2.97kgf/m at 9500rpm
Carburetor: FCR40

 

I'm not wanting to change to direction of this thread, but here is is a picture from a trackday I did last week. Some of you may be pissed, but I thought it was interesting. BTW, I take and post some pictures of the very trick Harleys/Buells that are over here at the tracks.