For you 125 GP Fans

[Sully60]

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.

Where did I make a comparison to GP bikes? I was only stating it would probably handle the speed issue well and be a good start for a pretty fun to ride roadrace bike.

I know you'll probably wont like it but unless they can make them clean and green and hippy friendly cool little two smokers won't be here for too much longer -that would be a sad day-


You don't have to be a genius to figure out the thing would turn okay, look at the angle of the forks and how short it looks.

[Sparky Bills]

My boss saw those bikes last time he was in Japan. Id own one in a heart beat!

Think how good it would be at Taupo!

[k14]

Where did I make a comparison to GP bikes? I was only stating it would probably be a good start for a pretty fun to ride roadrace bike.

No where, I made the comparison with a GP bike.

I know you'll probably wont like it but unless they can make them clean and green and hippy friendly cool little two smokers won't be here for too much longer -that would be a sad day-

Yep I know, they are slated to be phased out from 2010 in the world champs, will be a sad sad day indeed

You don't have to be a genius to figure out the thing would turn okay, look at the angle of the forks and how short it looks.

There's no way to tell unless you rode it. Its probably light but as I said to go fast is another thing. If those engines only put out 60hp it would struggle quite badly to keep up with a 125.

[Ivan]

My boss saw those bikes last time he was in Japan. Id own one in a heart beat!

Think how good it would be at Taupo!

Yeah aye, THat thing would rule at Taupo, especially the short Taupo circuit as you dont really hit much top speed there, The drive from the torque would be mint out of turn 1,

Up at new years me Sketchy and all that were on track and there was a guy with a 1993 RS125 running a CRF450 engine it, It blew past all us 125s like we were sitting still even Adam Chambers, But It completly destroyed its tires and they were brand new but man It worked well and was fast, But when I was at Manfield nats, He just wasnt therehe was about 7th I think,

Jason Eastons one is perfect but isa custom chassis only running RS running gear eg Forks and shocks

[Ivan]

Where did I make a comparison to GP bikes? I was only stating it would probably handle the speed issue well and be a good start for a pretty fun to ride roadrace bike.

I know you'll probably wont like it but unless they can make them clean and green and hippy friendly cool little two smokers won't be here for too much longer -that would be a sad day-


You don't have to be a genius to figure out the thing would turn okay, look at the angle of the forks and how short it looks.

Hey Craig,

Us 125 guys have clean green 125s unlike you dirty bucket racers
And you bucket racers even try get your four strokes like that 2 aye

Especially Fishy his one every now and again puffs some nice blue smoke

[Sully60]

Hey Craig,

Us 125 guys have clean green 125s unlike you dirty bucket racers
And you bucket racers even try get your four strokes like that 2 aye

Especially Fishy his one every now and again puffs some nice blue smoke

You could only know this if you were behind us Ivan!
Need I say more?

[Sully60]

Its probably light but as I said to go fast is another thing. If those engines only put out 60hp it would struggle quite badly to keep up with a 125.

Jasons Eastons Tigcraft is an example of using only 50hp to achieve some pretty good results. Top speeds may be similar but getting out of the corner a 450 would just jump a 125. Having raced both 125s and 450 SM's I can vouch for this. So different tracks would see different results.

The thing that limits the ability of this type of engine is they're not designed to run flat out at high revs for any length of time and they also aren't supposed to be positive g loaded for long periods of time which happens a lot on roadrace tracks( relative to a motorcross or offroad environment). Jason has had alot of issues surrounding oil control with his bike and has had to come up with some pretty innovative ways to solve these problems. All these things would have to be addressed by manufacturers if this is the way they want to proceed.

BTW: Does anybody in this thread remember seeing a Ducati Supermono?
One cylinder, two conrods one not connected to the piston, 12000 rpm from 550cc, 70ish bhp

[Ivan]

Yeah, As knowing from owning a high tuned DR350 which aint a racebike I know but it went hard the thing had lotsof outer corner drive real well but struggled when you held it pinned and yeah the engine liked getting REALLY HOT!!!!


OH BTW Craig its when Im lapping you guys

[Sully60]

OH BTW Craig its when Im lapping you guys

You're wasted in your current day job Ivan.(if you actually have a job then so is your employer!) The comedy world could do with more people like you.

Bring on the 26th when I go

Better get ready to suck down a great big cool can of WHOOPASS!

[Ivan]

Craig Ill get the lead, Stop after lap 1 grab one of Baydens beers, Skull it and keep going and still whoop yo ass

[Sully60]

Craig Ill get the lead, Stop after lap 1 grab one of Baydens beers, Skull it and keep going and still whoop yo ass

Those will be my beers son, and you have to earn them!

[gav]

Pics for Ivan!
Hey K14, you do know who Roland Sands is don't you? He's an ex 250AMA National champ. He builds fast bikes and rides them hard, I'm sure he'd hose off your 125 no problems!
Actually the sooner the four strokes take over from the two strokes the better. At the moment its a Honda vs Aprilia competition with Honda already pulling the pin on their two stroke development. Just imagine the number of manufacturers who'll be looking at running four stroke singles? I'd say most the manufacturers off Supermoto bikes would be a starter as well as privateer teams with factory backing like the Kawi pictured and the Moriwaki effort etc, bring it on!

[Ivan]

Hahahaha

Ok then,

Well Im gonna try

[HenryDorsetCase]

....seeing a Ducati Supermono?
One cylinder, two conrods one not connected to the piston, 12000 rpm from 550cc, 70ish bhp

I sure do. very cool. other cool single cylinder racebikes: Bimota BB1 (mmmm)

[Ivan]

Pics for Ivan!
Hey K14, you do know who Roland Sands is don't you? He's an ex 250AMA National champ. He builds fast bikes and rides them hard, I'm sure he'd hose off your 125 no problems!
Actually the sooner the four strokes take over from the two strokes the better. At the moment its a Honda vs Aprilia competition with Honda already pulling the pin on their two stroke development. Just imagine the number of manufacturers who'll be looking at running four stroke singles? I'd say most the manufacturers off Supermoto bikes would be a starter as well as privateer teams with factory backing like the Kawi pictured and the Moriwaki effort etc, bring it on!

Gav Bling coming your way,

That bike is Sexy as, Wow its awsome,