For you 125 GP Fans

[Ivan]

Well this is starting to take off I cant view the pics for some reason but I seen em else were

Moriwaki GP Mono, I heard Harc Pro and also by the looks HRC
are developing the future of the 125 class, using a 250 cc Four stroke single engine,

Its basically the same as what happened in moto x the 125 2 strokes had 250 4s allowed and now you dont see a2 stroke line on the grid

The day the 2 stroke Scream goes from the track It will be a sad day indeed

http://forums.13x.com/showthread.php?t=135726

[Ivan]

I wouldthink HRC are just using a CRF engine for testing the bike and actually build a genuine road race engien???

[Romeo]

Sick, lets hope they make a road legal race replica for the future L-platers like me ;P.

[Ivan]

I doubt it,


I mean the RS doesnt corner to well if you dont crank it over, itd be shit on the road haha

[Ivan]

Hmmm i Have a thought of using TZR250 rims same width as RS, on my 93 Rolling Chassis and running a 250 engine in it in formula 3 for some fun and a bit more track time.

[Buddha#81:Me]

Hmmm i Have a thought of using TZR250 rims same width as RS, on my 93 Rolling Chassis and running a 250 engine in it in formula 3 for some fun and a bit more track time.

Fark you can't even finish your bucket what makes you think you can build a Mini mono. Send the frame down here and let me do it.

[gav]

Seen this? Its pretty cool, 450 four stroke single road race bike, whats neat is it uses the standard MX bike frame rather than reframed into a GP chassis.
http://www.kawasakilive.com/lagunase...aspx?t=a&id=37

[Brian d marge]

Seen this? Its pretty cool, 450 four stroke single road race bike, whats neat is it uses the standard MX bike frame rather than reframed into a GP chassis.
http://www.kawasakilive.com/lagunase...aspx?t=a&id=37

Not sure about the frame .. Geometry's and all that ( would have to check )

But that exhaust is a clever idea , thats nice ,,,I like that

Stephen

[k14]

Not sure about the frame .. Geometry's and all that ( would have to check )

But that exhaust is a clever idea , thats nice ,,,I like that

Stephen

Yes very cool indeed but I wouldnt want to ride it. A mx frame isn't designed to cope with doing 200+ kph etc. The swingarm would be a piece of crap and the geometry would be all up the wack. Good on them for making it though, probably be the norm in a few years time.

[Sully60]

Yes very cool indeed but I wouldnt want to ride it. A mx frame isn't designed to cope with doing 200+ kph etc. The swingarm would be a piece of crap and the geometry would be all up the wack. Good on them for making it though, probably be the norm in a few years time.

Why wouldn't that frame and swingarm handle 200 kph? Big Motards get pretty close to 180 kmh as is and thats when the rider is hanging out in the breeze. You have to remember the stresses that MX bikes are designed to cope with. The engineering of MX frames has come a long way since alloy frames were first conceived.
From the picture the geometry looks pretty good and the things looks pretty short.

I'd buy it tommorrow! If I had any money!

One more thing, Roland Sands built it, nuff said

[k14]

Why wouldn't that frame and swingarm handle 200 kph? Big Motards get pretty close to 180 kmh as is and thats when the rider is hanging out in the breeze. You have to remember the stresses that MX bikes are designed to cope with. The engineering of MX frames has come a long way since alloy frames were first conceived.
From the picture the geometry looks pretty good and the things looks pretty short.

I'd buy it tommorrow! If I had any money!

One more thing, Roland Sands built it, nuff said

So you can tell the rake, trail, swingarm angle etc all from the photo? Woah, you're good.

Mx frames are designed to cope with going over bumps and jumps, absorbing big impacts and lowish speeds. Comparing that frame to what its trying to emulate (a 250GP bike) is like apples and oranges. Not one aspect of the frame geometry, flex etc will be the same. First of all the swingarm is a little matchstick, look at the 250 gp ones. The aprilias are full carbon fibre (read: stiff and rigid) and the hondas are quite big and chunky alloy. Even the swingarm and frame on my 125 is beefier and that doesn't have to handle half the power and 1/4 of the torque of the 450.

Not trying to cut the guy down, its an awesome machine and probably very cool to ride. At the moment however it wouldn't be within a mile of a 250GP bike, I'm sure in years to come they will become more and more common though. This is pretty much how the RS125 honda came to existence. In the early to mid 80's it started with putting CR125's in roadracing frames and racing them. Then the two engines took their own paths into what they are today. The same thing is happening at the moment and its only a matter of time before the factories start producing these themselves in road race form.

[Ivan]

Yeah I cant view it can someone upload a pic of it???? not a link an actual saved picture please?

HOnestly I dont think the Moto x engine will cope,

The Motard guys at the momment are complaining that the straight at manfield is to much for them and these are the 450 guys,


But then again Jason Easton is doing it perfectly well

[Sketchy_Racer]

The motor should cope just fine so long as engine temps are keeps good (which also should be fine)

remeber even as MX racers.. these motors ar on the limit the whole race.. sure the straights aren't as long, but the amount of revs are still the same. I recon it would be a pig to ride though... can anyone say FLEX

[HenryDorsetCase]

I think it would go surprisingly well. remember they are light and only 60hp or so.

If you look at the youtube video linked in the other thread, they talk about rotating the thing forward and using a lowered shock. so a long swingarm and road forks gives good geometry.

Roland Sands says he liked it, and he doesnt just build choppers on TV: he won the AMA 250GP series one year and competed for many years: he can ride, AND he knows what a racebike should go like.

Like someone else said, Id buy one like a shot.

[Brian d marge]

The use of a road bike front end would allow the tipping forward of the frame , moving the COG ,

the length of the swingarm may then become an Issue ...

I think Easton has the right Idea ,, ,,, though I doo like that exhaust !!!

It would be a great entry class ...

Stephen