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Old 01-19-2011, 06:24 PM   #541
Hayduke
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Jenny,

My wife rides a WR250 and I believe the heavy weight of that bike is mostly from the engine; it's a big chunk of metal for sure; much heavier than my 525 engine. Maybe that's why it is so durable. It's a good bike, especially as a dual sport, but it lacks any kind of low end grunt; you just have to wring it's neck all the time to keep any speed up. A 450 version sure would be nice.
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Old 01-19-2011, 08:13 PM   #542
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Originally Posted by Hayduke View Post
Jenny,

My wife rides a WR250 and I believe the heavy weight of that bike is mostly from the engine; it's a big chunk of metal for sure; much heavier than my 525 engine. Maybe that's why it is so durable. It's a good bike, especially as a dual sport, but it lacks any kind of low end grunt; you just have to wring it's neck all the time to keep any speed up. A 450 version sure would be nice.
The common urban legend is that the WR250R engine is one 'slice' of a Yammy R1 and it's head and FI design certainly looks like it, so it has that long range street bike reliability and is under-stressed even at 10K RPM. It also may explain why a 450 uber-reliable version has not appeared yet -- because they had technology to borrow from easily in the R1. Take 2 slices of an R1 for a 500 dirtbike, whoooboy watch out! It would be super reliable and powerful but it would be a multi. To get a 450 super reliable engine would be an all new engine design and expensive to develop, so I think that's why we haven't seen any yet.

It doesn't take much to get quite a bit more grunt out of a WR250R either. A full FMF system, clean up the intake a bit, PCIII or PCV and it really wakes up the whole power band, with no loss of reliability. That's what mine has and when I ride a stock WR250R, it feels positively choked-down anemic in comparison.
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Old 01-19-2011, 08:22 PM   #543
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The common urban legend is that the WR250R engine is one 'slice' of a Yammy R1 and it's head and FI design certainly looks like it, so it has that long range street bike reliability and is under-stressed even at 10K RPM. It also may explain why a 450 uber-reliable version has not appeared yet -- because they had technology to borrow from easily in the R1. Take 2 slices of an R1 for a 500 dirtbike, whoooboy watch out! It would be super reliable and powerful but it would be a multi. To get a 450 super reliable engine would be an all new engine design and expensive to develop, so I think that's why we haven't seen any yet.

It doesn't take much to get quite a bit more grunt out of a WR250R either. A full FMF system, clean up the intake a bit, PCIII or PCV and it really wakes up the whole power band, with no loss of reliability. That's what mine has and when I ride a stock WR250R, it feels positively choked-down anemic in comparison.
We hope to do the fmf system, etc. at some point, but it's alot of cash.

Hmmm.... twin cylinder dirtbike; sleeve it down slightly to meet the 450cc limit. Now we're talking.
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Old 01-19-2011, 09:26 PM   #544
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We hope to do the fmf system, etc. at some point, but it's alot of cash.

Hmmm.... twin cylinder dirtbike; sleeve it down slightly to meet the 450cc limit. Now we're talking.
Kinda like the Aprilias, huh?


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Old 01-20-2011, 07:16 AM   #545
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Kinda like the Aprilias, huh?


Aprilia. Want.

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Old 01-20-2011, 09:17 AM   #546
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Kinda like the Aprilias, huh?
Except that it would be a parallel twin, like the lately so popular F800 Beemers. Cut a R1 1000cc engine in half, mount to 6 speed wide-range gearbox, sturdy dirtbike frame, now we're talkin'
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Old 01-20-2011, 09:20 AM   #547
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Cross-posted from another forum

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Just got word from the Aprilia customer bike team manager...

Out of 13 bikes only 1 had a DNF because of engine failure and Chaleco finished the Dakar using a total of only 2 engines....

Now, bear in mind that these engines are only blue printed, so parts are matched and the engines built. Nothing fancy besides an oil cooler!

Hooah to that I say!!
Oh yeah!!
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Old 01-20-2011, 03:47 PM   #548
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Cross-posted from another forum



Oh yeah!!
Oh sure, but sometimes it comes down to pure economics of where you are and what resources you have near by which is why I'm switching to Honda for rallying. Anyone out there want a lightly used 525R built by Charlie?
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Old 01-20-2011, 04:50 PM   #549
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Oh sure, but sometimes it comes down to pure economics of where you are and what resources you have near by which is why I'm switching to Honda for rallying. Anyone out there want a lightly used 525R built by Charlie?
Hey Skibum69,

Are you planning on plating your Honda Rally bike? What are the laws like out there on the east coast?
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Old 01-20-2011, 08:09 PM   #550
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Aprilia. Want.

+1
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Old 01-20-2011, 10:47 PM   #551
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Aprilia. Want.

Okay but now you previously said you want Aprilia, KTM and Yamaha ....So which is it going to be if you can only have one?
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Old 01-21-2011, 08:14 AM   #552
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Okay but now you previously said you want Aprilia, KTM and Yamaha ....So which is it going to be if you can only have one?


Only one? Give me the new KTM 450 rally, please. Thanks.
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Old 01-21-2011, 08:17 AM   #553
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Only one? Give me the new KTM 450 rally, please. Thanks.

no problem, call Daniela Leidl from KTM, put min. 25.000,- Euro on the table and you can get one ..... !
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Old 01-21-2011, 08:27 AM   #554
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no problem, call Daniela Leidl from KTM, put min. 25.000,- Euro on the table and you can get one ..... !
Ooops! I thought Neil was buying. Nevermind.
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Old 01-21-2011, 02:13 PM   #555
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new Husky Rally-raid?

This is not a twin, but a very promising bike anyway

(from Italian forum Soloenduro: http://www.soloenduro.it/ubbthreads1...=1#Post1397419)



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