RM 125cc Question.

[hindle8907]

My mates just got a RM 125cc i dont know what year it is but he was telling me over the phone that its 60BHP .....

I find that hard to belive around what BHP are 2 stroke 125cc dirt bikes ?

I was allways under the impression it was around 30?

Is he talking rubish ?

[Tiger 55]

Well a GP125 could make about 60BHP and the engine might be out of that.

But I'd go with the rubbish thing.

[suzsv650]

lol!!!!!!

a hightly Tuned RS125 will get ~40 maybe 50ish. But were are talking serious race bikes here.

I should think a Crosser would be making ~20- 40ish Max. 60 is total Bollox!

[wattyfred89]

:laughat:Bless your mate he must be getting mixed up

[Alpinestarhero]

are you sure it isnt a 250!

Ask to see a dynometer output

otherwise, tell him he's very silly, and also warn him that if it IS putting out 60bhp, he better learn how to do engine rebuilds because he might be doing alot of them!

[Owenski]

Yamaha DTR had 17bhp and that was the fastest 125 learner legal bike behind the RS125.
The SV is only 73(ish)bhp IRRC so a 125 is never going to be putting out 60. Someone spiked his cornflakes mate.

EDIT: I realise your asking about the RM and not the DR, the RM been the pure crosser. Not sure if it makes any odds but it certainly rules out my comparrison to the DTR.

[Alpinestarhero]

even a modern 600cc IL4 supersport would be struggling to get twice the power output (consider that in general a two stroke can produce twice as much power per cc than a 4 stroke...)

[suzsv650]

even a modern 600cc IL4 supersport would be struggling to get twice the power output (consider that in general a two stroke can produce twice as much power per cc than a 4 stroke...)

Thats cus two strokes are AWESOME

[Alpinestarhero]

Thats cus two strokes are AWESOME

hell yea!!

here's one for ya

http://www.youtube.com/watch?v=jXHvY-zY9hA&feature=related

For those that havn't seen that engine before...thats the lower powoer version. there is one that puts out more than 108,000 hp and over 5.5 MILLION lbft (ftlb?) of tourque

Yummy

[zsv650]

Thats cus two strokes are AWESOME
well they are sometime's.:)

[speedplay]

Is he talking rubish ?

Yes hes talking rubbish.

I had a KTM 200 exc as my last enduro weapon, race tuned to the hilt, 2 stroke...46bhp.

And I have a copy of the dyno somewhere too.

My 520 4 stroke is about 60bhp but will be finding out how much I can push that upto when I get the supermoto kit and then have it tested..

[Alpinestarhero]

well they are sometime's.:)

the times in between Seizure Paranoia, Piston Replacment and Cold Starting :smt033

[Graciepants]

Thats cus two strokes are AWESOME

they smell nice...

[Owenski]

they smell nice...

+1

[sunshine]

I like the smell and the smoke on a cold start, when the nabour is listening to your conversation :grin:

but a rm 125 has about 20bhp not 60bhp, a old ts250 is only 23bhp out the factory so i think with modern 125 should make about the same.