125-200cc HP of a 2000 WR125?

Hi all

Just looking at a 2000 WR125 and was wondering what the HP power output was as standard? Can't seem to see anything official online except a few references to 15HP which i thought was the WRE model not the WR. I know the YZ125 and KX125 were up around the 30HP mark...or so I thought.

How would the WR compare on paper to a 2004/2005 Honda CRF250?

I know it depends on what you want it for but just wondering overall how would it compare.
The only off road bikes I've ridden were a KX250 years ago and my mates CRF250 recently.

Bought the WR125 anyway . But still would like to know any of the above.

Anybody??

A standard WR125 would make about 32 to 35 HP which is in the same range as a CRF 250

the delivery is of cause different with a 2 stroke and its more peaky

when you decide to get a 165 treatment for this bike you get it in the 40-42 HP and for sure a CRF 250 is no match anymore

Robert-Jan

Not to hi-jack this thread,but I was also so looking for hp numbers on the 2002 cr 250,any ideas?

I think they were getting close to 48 rear wheel hp out of the CR250.

hows this then, anybody have horsepower figures for the 300 and 360? would be interesting to know what torque a 360 is pumping out. a pipe and some portwork on the stuffer has to bump it 5 horse, its a huge seat of the pants difference

originally the wre had about 15 bhp, smaller carb and smaller or larger powervalve ports, whatever makes it less peaky at the top, wr standard is around 30, with a bit of work it could make over that, it'll be lighter than the 250 4 strokes and cheaper to fix, piston kits are fifty pounds

Not to shabby,useable power at that.

I have a 2012 WR165 and a 2006 CRF250R.
The CRF is faster everywhere except for the tight single track, which is the exact reason I bought the WR.

Must be the riders on the CRF250's and WRF250's here in Cambodia then and not the bike's as I pretty much showing these guys how nice my rear brake light works.

Robert-Jan

Back from '98 to 2008 my shop had a Dynojet dyno that I had the opportunity to use as I liked. I ran several of the above requests on the same dyno, with the same rear street tire (360 used an 18 but was a similar tire, but different nonetheless). I'm rounding the numbers here and going from memory. My '02 CR125 made just shy of 31 rwhp. My 2000 CR250 made almost 44. My 01 CR250 made almost 45. My friend's 2000 WR360 made 42. My 04 TC250 made 30. My 04 TC450 made 47. My 2008 CRF250R made 36. My 2000 Honda CR125 made 30. Friends 2000 Honda CR250 made 42. We sold the dyno back in 09. Wish I could run my 12 CR144! All 19" wheel bikes listed used the same rear street tire, which I still have. Take dyno numbers with a grain of salt. They are best used as a comparative tool with the same dyno and tire. Comparing numbers from dyno to dyno is useless and leads to frustration, so don't worry about what you read from one publication to the next.

Absolutely, I've never known anyone who won a dollar racing dyno sheets and have seen many racers get off track tuning for that high rpm high horsepower number at the expense of usable mid-range torque.

Must be the riders on the CRF250's and WRF250's here in Cambodia then and not the bike's as I pretty much showing these guys how nice my rear brake light work.

Robert-Jan

A skilled rider will almost always be faster than a lesser skilled rider.
I'm assuming CRF250X is the bike you are referring to as you mentioned the WR250 as well.
No comparing the 250X to the 250R really, vastly different purpose for each bike.
MXA just dyno'd all the 250 four stroke mx bikes, ranged from 37 - 43 hp, not that it matters at all in the woods or on the track.

still very interesting though. wonder why there is never a dyno graph in every test or review back in the ol cycle world days?..would think the 360 had a pretty good torque curve

Probably for space reasons. The 360 may confuse a bit with the low peak HP number, but it is because of the relatively low peak RPM. HP is really a mathematical product of torque and RPM. The 360 was stronger everywhere until peak, where the 250 took off. As anyone who has ridden a 360 knows, it has a meaty surge that a 250 can't match.

The CRF 250 I refer to is indeed a x model

Robert-Jan

You're right about that. The dyno actually measures torque and that is converted in to horsepower according to rpm. This makes high a revving 125 seem great and low revving torque monsters like a 360 seem not so great on horsepower. The 125 can be very effective if it's geared so that the engine stays close to it's peak. It's pretty obvious that how effective a 125 is would have more to do with the rider and the bike set up then what's on paper.

great stuff guys

While on the topic, does anybody have a chart/graph for a 165 vs 144? Or just a 165 one would be cool.

From what Ive seen and have owned the 144 peaks with higher HP at higher RPMs
A bit like the 360 or 300 vs 250 - hp is not where the 165 excels over smaller bore