Frankenstein, 1984 CR125 with an 81 XR200 engine

[Graham]

If you build it you will have a one off,and something that will spark the imagination of alot of others.
Its good to think outside the square, and not become one of the cardigin wearing 2 stroke brigade who believe anything out of the ordinary is a waste of time.  Who knows you may just prove them wrong

Hell it would be boring if we all rode the usual run of the mill MXer, aaah  oops thats what most of them do

[maico police]

I'm with Graeme. Rider for rider the CR 125 would smash the thing in all but probably the worst conditions (and probably even then). Put your money and effort into something that'll have you at least racing against other people and not the calendar.

The 125 also sounds a lot sweeter.....

[mustanggrahame]

I can appreciate the workmanship and time that goes into some of these hybrid bike builds. It shows how clever and skilful the builder is. I just doubt that it is ever worth the effort if your main aim is to make the bike faster. Different, sure.
What is the general consensus to the butchering of good bikes in the Euro twin shock class? Is this any different just because it is a lowly 125?
I think the first post was asking if it would be a good idea to mate a CR roller with an XR200 with the aim to VMX it. The obvious answer is no. It would be slower under all MX conditions. It also puts the bike up a class.
I'm not against 4-strokes, love them actually.
Cheers, Grahame

[NSR]

Rider for rider the CR 125 would smash the thing in all but probably the worst conditions (and probably even then). Put your money and effort into something that'll have you at least racing against other people and not the calendar.

There ya go.  Build nothing  

I agree
The 125 would sound better, if it had a motor.

    
  

[TT5 Matt]

the 82 xr200 has single shock and fairly long travel forks std why not shove the cr suspension into one of those then bomb the motor out,you can even stroke/bore them to 230cc

[TM BILL]

What is the general consensus to the butchering of good bikes in the Euro twin shock class? Is this any different just because it is a lowly 125?

I think ole mate has said he only has a CR roller so hes not butchering a good bike , The euro twin shock class is a bit different as they are to all intents and purposes reversing history or de engineering a product to race against earlier bikes 

I think the first post was asking if it would be a good idea to mate a CR roller with an XR200 with the aim to VMX it. The obvious answer is no. It would be slower under all MX conditions.

Agreed but i think it would make a cool trail bike and certinaly a talking point 

http://i252.photobucket.com/albums/hh23/mcphotonut/200right03.jpg

Cheers, Grahame

[Marc.com]

I can appreciate the workmanship and time that goes into some of these hybrid bike builds. It shows how clever and skilful the builder is. I just doubt that it is ever worth the effort if your main aim is to make the bike faster. Different, sure.

Yeah normally I like a good hybrid but the idea is to build a better mousetrap not a worse one, why not sell the XR200 and find a motor for the CR125 and enjoy those 34 hp. Back in the day we had this kind of argument 2 stroke versus 4 stroke and my RM125X shut down a mates XR200 on even the worst snottiest hills. 

[TM BILL]

I can appreciate the workmanship and time that goes into some of these hybrid bike builds. It shows how clever and skilful the builder is. I just doubt that it is ever worth the effort if your main aim is to make the bike faster. Different, sure.

Yeah normally I like a good hybrid but the idea is to build a better mousetrap not a worse one, why not sell the XR200 and find a motor for the CR125 and enjoy those 34 hp. Back in the day we had this kind of argument 2 stroke versus 4 stroke and my RM125X shut down a mates XR200 on even the worst snottiest hills. 

The reality is 90% of people  talks up horsepower when 90% of that 90% only use 50% of the power available anyway  Particularly on 125s how many wobblers do you see pissing around trying to race 125s  When somone can ride a 125 to its full potentiol its impressive but very few do 

[Marc.com]

When somone can ride a 125 to its full potentiol its impressive but very few do 

Too true it used to be interesting at MXdN when the 125s were raced against the 500s all with top riders on them, the outcome was never entirely in favour of who had the most horsepower.

Had a ride on current model 144 Husky the other day..... fast as fark and felt like BMX bike

[Tony T]

Remember watching Johnny O'Mara on a 125 pass Dave Thorpe (I think) on a 500 on an uphill straight? 

[suzuki59]

Here's a kiwi xr200 frankenstein bike  in a 1981 rm125x frame
To me this is the ultimate sin destroying one of the all time legendary bikes- but each to their own....
http://www.trademe.co.nz/motors/motorbikes/motorbikes/dirt-bikes/auction-552926095.htm

[cyclegod]

OK time for my 2 cents, if you had any other early 80's 125 I would say get an engine for it and restore to race but because its a HONDA with the well known magnesium achilles heal clutch/waterpump cover, chuck the 200 in, add some lights and vinduro it.

[xl59]

Hi i have a 1983 yz 125 with xl185 motor in it .Most fun bike i have ride.Got a gold medal at harrow vinduro on it last year an i weigh 115kg.But if you dont do it i would be interested in purchasing bikes if that would be posibly .Check out hybreds and roaches on this forum.I also have same motor in 1983 xr 250 frame due to original havin head problems,Bit of fiddlin but both good fun to ride  .. Cheers GREG

[Doc]

Remember watching Johnny O'Mara on a 125 pass Dave Thorpe (I think) on a 500 on an uphill straight? 

Tony..1986 MXDN, At about 9 minutes into vid shows O'Mara on the 125 hunting Thorpe on the 500 and eventually passing. O'Mara second beaten only by David Bailey who was also on a 500

http://www.youtube.com/watch?v=CSeAP3OGSEI

[GMC]

XR 200’s are great little bikes that shouldn’t be under estimated.
Because they are underpowered they are fun to push hard but they are no match for 2 stroke horsepower.
I raced an XR 200 in a natural terrain MX in the mid nineties on a wet track. In practice I was hounding a lot of the young guys in the corners, I think some were about ready to retire from MX when they realised an old fat bloke on an XR was rounding them up.
But the track dried up and there was no way the little XR could keep up on the straights when the 2 stokes could get the power to the ground.

Depending how it is put together it should make a fun little bike that will be good in Vinduro’s but you will be wasting your efforts if you think it will be any good on a serious MX track.

Much easier and less effort to just sell the parts you have and just buy an XR200.
83 on they had good suspension for a trail bike.
The CR frame may make it a taller bike and take away the advantage in the corners