WR250R vs. KLX250S HP and Torque Comparison
#11
RE: WR250R vs. KLX250S HP and Torque Comparison
No one bike is going to satisfy everyone. We all have different ideas on what makes a great bike. Main thing is to learn all you can about bikes you are considering before you make the purchase and give the greatest weight to those things that are most important to YOU. That way, you can rest easy knowing you got the right bike for you and you won't be second guessing yourself thinking maybe you should have bought a different one.
On the other hand, I don't buy a bike with the intent to keep it forever, so that makes purchases easier. I won't be locked in until the wheels rust off before I switch it up again. It may turn out that I keep it a long time, but I'm willing to change if the mood strikes me. Not saying that's for everyone, but I like variety and even if I'm happy with something, I'll change it up and try something new just because. Sometimes it works out, sometimes it doesn't, but you always learn something. Sometimes the new thing isn't necessarily better, but just different - a different flavor, but just as good, so to speak. If nothing else, that provides you with a wide range of experience that others don't have. I mean heck, why not? Life's too short to live in a rut. How will you ever experience new things if you never change? Shadetree's right that it's very expensive to stay up with the latest and greatest. But it's not so bad if you back away from the edge a little bit and change things up every now and then.
On the other hand, I don't buy a bike with the intent to keep it forever, so that makes purchases easier. I won't be locked in until the wheels rust off before I switch it up again. It may turn out that I keep it a long time, but I'm willing to change if the mood strikes me. Not saying that's for everyone, but I like variety and even if I'm happy with something, I'll change it up and try something new just because. Sometimes it works out, sometimes it doesn't, but you always learn something. Sometimes the new thing isn't necessarily better, but just different - a different flavor, but just as good, so to speak. If nothing else, that provides you with a wide range of experience that others don't have. I mean heck, why not? Life's too short to live in a rut. How will you ever experience new things if you never change? Shadetree's right that it's very expensive to stay up with the latest and greatest. But it's not so bad if you back away from the edge a little bit and change things up every now and then.
#13
RE: WR250R vs. KLX250S HP and Torque Comparison
ORIGINAL: IG
just fyi- there is no way the new WR makes anywhere close to 30 rwhp. that's nearly where the real Yamaha WRF enduro ends up on horsepower and the two engines aren't even close to similar. I would say 20 rwhp on the WR would be more in the ballpark. A KLX can be modded and tuned to make more power for a ton of money less than the WR which is a grand more to begin with. But like someone else said, get what you want. And yeah, I'll go on record with this post.
just fyi- there is no way the new WR makes anywhere close to 30 rwhp. that's nearly where the real Yamaha WRF enduro ends up on horsepower and the two engines aren't even close to similar. I would say 20 rwhp on the WR would be more in the ballpark. A KLX can be modded and tuned to make more power for a ton of money less than the WR which is a grand more to begin with. But like someone else said, get what you want. And yeah, I'll go on record with this post.
#15
RE: WR250R vs. KLX250S HP and Torque Comparison
ORIGINAL: rhrose
IG - - Just FYI -- you B wrong.--dead wrong. But that's nothing new - you usually are.
ORIGINAL: IG
just fyi- there is no way the new WR makes anywhere close to 30 rwhp. that's nearly where the real Yamaha WRF enduro ends up on horsepower and the two engines aren't even close to similar. I would say 20 rwhp on the WR would be more in the ballpark. A KLX can be modded and tuned to make more power for a ton of money less than the WR which is a grand more to begin with. But like someone else said, get what you want. And yeah, I'll go on record with this post.
just fyi- there is no way the new WR makes anywhere close to 30 rwhp. that's nearly where the real Yamaha WRF enduro ends up on horsepower and the two engines aren't even close to similar. I would say 20 rwhp on the WR would be more in the ballpark. A KLX can be modded and tuned to make more power for a ton of money less than the WR which is a grand more to begin with. But like someone else said, get what you want. And yeah, I'll go on record with this post.
#16
RE: WR250R vs. KLX250S HP and Torque Comparison
rhrose it sounds like to me that you are leaning towards the WR. So If I was you I would get it! I'm sure the WR is going to be a great bike! For an Extra thousand bucks you get the extra h.p. and not have to mod the bike with a 300cc or 331 kit to get the same h.p., sounds good to me! I am not bashing the KLX it is a great bike butAs for me i will not be keeping the klx for long. I will be replacing it with a 450 cause ANY 250 just don't have the H.P. I want! But I will say this no matter what bike you buy you will not find a better forum than this! [sm=smiley20.gif]
#17
RE: WR250R vs. KLX250S HP and Torque Comparison
I would think that the difference in HP could be equalized with Mods because they are the same Displacement. The 13 tooth front gear must bump up the RWHP for starters. I think you should decide between 250 and 450 VS. comparing different 250's. My KLX is still bone stock and I ride some very difficult trails on it with very low skill levels. It is very predictable and nimble. It gets up nasty little hills with ease and lands beautifully off jumps. Plus, I know I can do free mods to open it up more and then add exhaust & Jets to really unleash some power. The WR is probably better in stock trim but I bet it can't keep up with some of the Modded KLX's some members on this Forum have. Enjoy the bike you do get and don't be afraid to take your time deciding. I am sure there is a KLX owner near where you live that Will let you test drive one. I will let you ride mine if you are near MT Airy, NC. LOL, Is anything near MT Airy, NC?
#18
RE: WR250R vs. KLX250S HP and Torque Comparison
I'm wondering how you guys found out the new WR"S" makes more power than the KLX since it's not even out yet. What makes you think it will make more power? It does not have the WRF engine or anything close. It will be a pooch just like the KLX. Don't let the FI and new frame fool you. Still waiting to see if I should cancel my membership or not.
#19
RE: WR250R vs. KLX250S HP and Torque Comparison
ORIGINAL: IG
I'm wondering how you guys found out the new WR"S" makes more power than the KLX since it's not even out yet. What makes you think it will make more power? It does not have the WRF engine or anything close. It will be a pooch just like the KLX. Don't let the FI and new frame fool you. Still waiting to see if I should cancel my membership or not.
I'm wondering how you guys found out the new WR"S" makes more power than the KLX since it's not even out yet. What makes you think it will make more power? It does not have the WRF engine or anything close. It will be a pooch just like the KLX. Don't let the FI and new frame fool you. Still waiting to see if I should cancel my membership or not.
#20
RE: WR250R vs. KLX250S HP and Torque Comparison
I think your numbers are off by just a bit.
The KLX250S is advertised here in Japan with 28hp at the crank. The earlier J series is listed in the service manual with 30hp at the crank. You can't just grab the lowest dyno figure you can find either. I have seen -in person-the stock KLX dyno at 20hp quite regularly. Also, you cannot just use fuzzy math to come up with a dyno figure from a crank hp reading because your results vary significantly from machine to machine. The same goes for magically coming up with a crank hp figure from a dyno reading...it doesn't work that way.
Another point is the that the WR is a heavier machine, due mostly to what Yamaha calls an EXUP valve that they incorporate in the exhaust header. This valvesrestricts flowat lower RPM's increasing the back pressure for more low-end torque, then opens at higher RPM to increase the flow.What's more, if you want to go to a full aftermarket exhaust, you will have toremove theEXUP valve,further reducing the low-end torque on amachine that hasacam grind suited for peak power at highRPM.
With the the added weight, I would say that any hpadvantage the WR might have -small as it may be- will be offsetby the pork added by that valve.
In the end, I think you will be happy with either machine and it already appears that you are exaggerating to help yourself decide, but the $1000.00 to $1500.00 price difference will turn more than few people off.
The KLX250S is advertised here in Japan with 28hp at the crank. The earlier J series is listed in the service manual with 30hp at the crank. You can't just grab the lowest dyno figure you can find either. I have seen -in person-the stock KLX dyno at 20hp quite regularly. Also, you cannot just use fuzzy math to come up with a dyno figure from a crank hp reading because your results vary significantly from machine to machine. The same goes for magically coming up with a crank hp figure from a dyno reading...it doesn't work that way.
Another point is the that the WR is a heavier machine, due mostly to what Yamaha calls an EXUP valve that they incorporate in the exhaust header. This valvesrestricts flowat lower RPM's increasing the back pressure for more low-end torque, then opens at higher RPM to increase the flow.What's more, if you want to go to a full aftermarket exhaust, you will have toremove theEXUP valve,further reducing the low-end torque on amachine that hasacam grind suited for peak power at highRPM.
With the the added weight, I would say that any hpadvantage the WR might have -small as it may be- will be offsetby the pork added by that valve.
In the end, I think you will be happy with either machine and it already appears that you are exaggerating to help yourself decide, but the $1000.00 to $1500.00 price difference will turn more than few people off.
ORIGINAL: rhrose
FYI the following are the FACTORY HP and Torqueratings for these two bikes.
2008 FI WR250R-STOCK KLX250S STOCK
HP 30.7 22.0Dyno 18.3 HP- rear wheel
Torque(ft. lbs) 17.48 14.5(Estimate) Dyno 13 ft. lbs.
Based on the foregoing (using a conservative 20% reduction for HP and 12 % for torgue) that would make the WR20R make approximately 24.56 RWHP and 15.38 ft. lbs of torque.
As you might guess I am struggling even more with buying the KLX and having to spend approx. $1500 to get anywhere near the WR250R performance figures. Comments welcome
PS - The dyno figures were obtained from the HMF dyno test
FYI the following are the FACTORY HP and Torqueratings for these two bikes.
2008 FI WR250R-STOCK KLX250S STOCK
HP 30.7 22.0Dyno 18.3 HP- rear wheel
Torque(ft. lbs) 17.48 14.5(Estimate) Dyno 13 ft. lbs.
Based on the foregoing (using a conservative 20% reduction for HP and 12 % for torgue) that would make the WR20R make approximately 24.56 RWHP and 15.38 ft. lbs of torque.
As you might guess I am struggling even more with buying the KLX and having to spend approx. $1500 to get anywhere near the WR250R performance figures. Comments welcome
PS - The dyno figures were obtained from the HMF dyno test