Differences between wr 426 and xr650 ???
Posted July 06, 2003 - 01:59 PM
Posted July 06, 2003 - 05:38 PM
From what I've read, the WR426 is pretty lame, stock. If you upgrade the jetting, gearing, and timing to YZ specs, then the WR is just as fast as a YZ426.
I like the XR650R better than either the YZ or the WR, or any other dirt bike I've owned or ridden. It's a really great do it all bike, for off-road, racing, or dual sport, it can do it all very easily.
ps. !! I forgot to answer one very important question you asked. You asked, does the power make it easier to ride? Answer: NO. The power makes it more FUN to ride, not easier. Honestly, an uncorked 650R is a trigger happy beast, and the slightest flick of the wrist results in brutal acceleration no matter what gear you're in. Ride one and you'll see what I mean. This bitch pulls HARD!
Posted July 07, 2003 - 01:27 PM
Posted July 07, 2003 - 01:47 PM
I cannot fathom taking an XR650 on some trails . You would have to be one strong, highly technical and in very good shape of a rider to tackle the nasty stuff. Don't get me wrong, they haul tail but God almighty are they the craps in the nasty stuff. I couldn't imagine taking one up Boardman or Germainia Creek up north... could be done but... geeeeez!
The same guy that was last to arrive up Germainia Creek on his 650 last Sept was ALWAYS first on 50 mile open roads on a ride to NV.
Posted July 07, 2003 - 05:56 PM
The XR is a beast in the woods. If you are in good shape, you'll be fine but for me, it stops being fun after about an hour. The WR also tires you but there are about 30 less lbs. to drag around. The suspension on the WR is way better than the XR which for me adds tons to the fun factor.
I considered the XR but one ride on a WR was all it took to convince me that this was a better bike for my needs.
Posted July 07, 2003 - 07:06 PM
Posted July 07, 2003 - 07:12 PM
Posted July 07, 2003 - 08:19 PM
If you like a bike with tons of torque , then its worth looking at the XR650R. I doubt the WR426 makes more torque than the CRF450 and the XR650R makes gobs more torque than the CRF450 even when comparing the same power to weight ratio. The XR650R is a great general purpose bike and does lots of things well and some very well, but MX isn't one of them and the WR would be a much better choice if MX is your primary objective. With the stock 14/48 gearing, the XR650R will hit ~97MPH at 8,000 RPM and with 15/42 she’ll do ~119 and still won’t be out of breath if properly setup. Remember, the stock XR650R comes corked up with an EPA rubber intake, very lean jetting, and a very restrictive exhaust tip to comply with certain emission standards unlike the CRF450 or WR426/450 which are born race ready. You can easily uncork an XR650R for $100 or less and it’s quick and simple to do, but like any bike its easy to dump a ton of money into if you like aftermarket goodies.
A stock CRF450 makes ~12 ft/lbs torque at ~4,000 RPM and ~33.5 ft/lbs torque at 7,000 RPM based on a dyno chart that was posted in the CRF450 group a while back. A stock ‘uncorked’ XR650R makes ~37 ft/lbs of torque at ~4,000 RPM and ~43.5 at 6,000 RPM. Add the Honda HRC kit (cam/piston) or something similar, a pipe and a 680 kit and it will be pushing the torque a hair over 50 ft/lbs at 6,000 RPM and about 64 rear wheel HP at 8,000 RPM, which is redline. Even at 277 lbs (Honda’s listed dry weight), the XR650R can reliably & inexpensively deliver an impressive 0.180:1 ratio of torque to bike weight versus 0.148:1 for a stock CRF450 which is supposed to be race ready to begin with and I'm betting the WR426 has a torque to weight ratio that's weaker than the CRF450, especially since its heavier than the CRF450. If the CRF450 maintained that same torque to weight ratio of race ready XR650R, then it would be putting out 40.6 ft/lbs of torque at its current 225lbs of weight, which means the CRF450 would be producing 21.2% more torque than it currently is…way kool
The extra weight of the XR650R can also work to one’s advantage in some circumstances, but certainly not for MX type riding. The XR650R loves the dunes, the deserts, makes for a nice dual sport and also makes a great west coast trail bike for many trails (except the slowest type where you're having to crawl), but it’s not for everyone. The XR is super reliable, but I've never had any complaints with the many Yamaha's I've owned years ago and will someday likely own another in due time, especially when I see a 2 wheel drive WR in the showroom
No matter which bike you decide on, check into the z-Start auto clutch as an option. It's the koolest thing I've added to a bike in a long time and makes trail riding that much more enjoyable.
Posted July 07, 2003 - 09:03 PM
What's your beef with KTM?
I think the most major manufacturers are making pretty awesome bikes - the CR 450F and the WR 450F among them.
KTM's are excellent bikes as well. They come with far better standard equipment than most and are very potent off-road weapons out of the box. (I think that the PDS rear end is a long term achilles for the brand, however. Just ask McGrath.)
The XR is bigger, heavier and brutally effective. But put it in the the woods next to a KTM or WR and you'll feel like your wrestling a fat guy after an hour.
Conversely, in the desert where physics are on its side, you had better have your G-suit on because that XR is nothing short of a low flying cruise missile
Not bad, just different. Like KTM.
Over and out.
P.S. Excellent analysis qadsan!
Posted July 08, 2003 - 04:30 AM
Yes, very well done. He makes up pig wrestlers proud.
Excellent analysis qadsan!
Posted July 08, 2003 - 05:36 AM
Obviously, you don't know much about the WR's and YZ's. Where are you getting the 15 hp less from the WR engine? Are you thinking of the XR400? The engines are identical with a few changes. The WR has a heavier flywheel, wide ratio tranny and the exhaust cam advanced one tooth to improve low end. It is very fast and because of the pumper carb, the throttle response is much crisper than the XR650. It has ton's of low end snap. I've changed my exhaust cam to YZ timing so I know have a YZ with a wide ratio transmission and a heavier flywheel.
"My bike eats 250mxers if it gets traction."
You are making my point for me. I never said that the WR makes more torque or hp than the XR, it doesn't need to, it weighs less. I'm just telling you that it accelerates very hard and I repeatedly pull my buddies bike. He weighs 155 lbs. I weigh 165 lbs. and we are equal in riding ability. If you can't get traction, you aren't going to out accelerate another bike.
No matter how you look at it, 30 extra lbs. does make a big difference in the woods if you run hard. The faster you go the more it works you. The WR's suspension is set up to ride hard. Try riding something lighter and see if you notice the difference.
You must not have much experience the KTM's either. They fly. Parts are a little pricy but the quality and attention to detail is unreal. My buddy just bought a 2003 KTM 450EXC and it's an incredible bike. I've also ridden the 400EXC and the 520EXC as well as the 300EXC 2-stroke. They are fantastic bikes.
I'm not trying to give you a hard time but you need to ride these bikes to give someone a comparison.
Posted July 08, 2003 - 11:23 AM
Engine Type 649cc liquid-cooled dry-sump single-cylinder four-stroke
Bore and Stroke 100.0mm x 82.6mm
Compression Ratio 10.0:1
Valve Train SOHC; four-valve
Carburetion Keihin 40mm piston-valve
Ignition Solid-state CD with electronic advance
Final Drive #520 O-ring-sealed endless chain; 14T/48T
CHASSIS / SUSPENSION / BRAKES
Front Suspension 46mm leading-axle Kayaba cartridge fork with compression- and rebound-damping adjustability; 11.2-inch travel
Rear Suspension Pro-Link Kayaba single-shock with spring-preload, compression- and rebound-damping adjustability; 12.1-inch travel
Front Brake Single 240mm disc with twin-piston caliper
Rear Brake Single 240mm disc with single-piston caliper
Front Tire 80/100-21
Rear Tire 110/100-18
Rake 27.8 degrees
Trail 111.0mm (4.3 inches)
Wheelbase 58.3 inches
Seat Height 36.8 inches
Ground Clearance 12.0 inches
Dry Weight 277.0 pounds
Fuel Capacity 2.6 gallons, including 0.5 gallon reserve
Emissions California version differs slightly due to emissions equipment.
Available Colors Red
Model ID XR650R
Type 449cc, liquid-cooled, 5-valve, DOHC, 4-stroke w/titanium valves
Bore x Stroke 95 x 63.4mm
Compression Ratio 12.5:1
Carburetion 39mm Keihin FCR flat-slide w/throttle position sensor
Ignition Digital CDI
Transmission Wide-ratio, 5-speed w/multi-plate wet clutch
Final Drive #520 Chain
Suspension/Front 46mm Kayaba inverted telescopic fork w/adjustable compression and rebound damping; 11.8" travel
Suspension/Rear Kayaba single shock w/adjustable preload, compression and rebound damping & separate hi/lo-speed compression adjuster; 12.4" travel
Brakes/Front 250mm Floating Disc
Brakes/Rear 245mm Disc
Tires/Front 80/100-21 Dunlop
Tires/Rear 110/100-18 Dunlop
Seat Height 39.2"
Ground Clearance 14.6"
Dry Weight 245 Lbs.
Fuel Capacity 2.6 Gallons
Color Team Yamaha Blue/White
Warranty 30 Day (Limited Factory Warranty)
To me the difference is approx 30 pounds and 200cc. It really boils down to what bike suits your needs. If ya like big fat red, then go for it. If ya like Sleek Fast and blue go for that. I ride occasionally with big fat and red, and man the trails beat the guy up. That bike is a desert sled. I ride with a 2002 wr426 and wr450, both stock and they hook up and run in the woods, thats what they are built for.As stated in the post above, the red bike will run but it beats you senseless with that extra 30 pounds IMO and what I have witnessed
Posted July 08, 2003 - 01:21 PM
'01 xr650L mods- uncorked, white bros eseries pipe, K&N filter, enduro engineering bark busters, irc knobbies, DG bash plate,clarke tank 5gal, and tons of stickers......
Posted July 08, 2003 - 01:46 PM
Second, if i was thinking 400R I would have said 30 less hp (they are like 32 at the flywheel I believe). 15 horsepower with 30 extra pounds is gonna give you a better power to weight ratio, unless you have less than 2:1 power to weight, which would be about 200 hp in a WR with you or me on it (that would be fun). the heavier you are the less the difference in weight matters for the power to weight ratio difference between the bikes. I have seen figures of 40HP at the wheel for an uncorked WR with around 34 stock. As for riding lighter bikes, i have owned an xr200R for about 6 years, rode a 250R extensively as well as a YZ426 and KTM 450MXC and rm125 and none of these were incredibly easier to handle in the woods when moving at speed, yes the BRP is a bigger pain in the ass but not as much as some who have not ridden it much would think, you just need to learn to point and let it do its thing, muscleing it will only get you thrown into a tree. The SLOWER you go, the more you notice the weight. Im not trying to start a fight, this is what i have observed.
I dont like KTM because they do not have a particularly good record for reliability in all the ones ive seen and they take forever to get parts for here. As a pure race machine, KTM 4 strokes probably win my vote, I loved the power of my buddys 450 once you got the revs up, but in my personal opinion they are not reliable enough to be a good offroad bike that i would want to take back into the middle of nowhere with me. I dont just hate KTM, i hate kawasaki too, or at least their non suzuki based 4-strokes, this is from a long history of kawi's I have known that crap out when you need them.
Posted July 08, 2003 - 02:16 PM
The same guy that was last to arrive up Germainia Creek on his 650 last Sept was ALWAYS first on 50 mile open roads on a ride to NV.
Maybe someone (oldoutdoorsman)ought to read more careful. If everone stayed exactly on ttopic for answering questions, half of the posts wouldn't be on this site.
Posted July 08, 2003 - 02:28 PM
JR650, no offense intended, my friend. You're right. It's all about experience. I think that low-speed, technical big-bike riding is largely a matter of technique. I've seen guys ride boat-anchor KRL650's like they were a Gas-Gas trial bike. It's a beautiful thing to behold.
Before I wised up, I used to ride a heavily modified XR650L around in the woods. It required a lot of attention and body english, but it could be done.
And for the record, I love the idea of the XR 650R. I saw a tricked-out one at a local dealer and there was a string of drool from my lower lip to the floor by the time the salesman disturbed my lustful trance.
If it were possible to plate 650R in my moto-facist state, there would be one in my garage. The KTM's slide under the Department of Licensing's radar.
I'm sorry you've had bad experiences with KTM, I've owned two and they have been bullet proof.
If you ride. I'm on your side.
All the best.
Posted July 08, 2003 - 05:33 PM
Posted July 08, 2003 - 06:15 PM
Oh and yeah, the YZ/WR suspension was the best I've ever experienced, far better than the XR. . Yep.. you're right.
Posted July 09, 2003 - 01:14 AM
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