Curious, 426 vs. 450 ??????


19 replies to this topic
  • Crabtree426

Posted September 13, 2005 - 08:19 AM

#1

I own a 2000 YZF426. I've never ridden the YZF450's. Do the newer 450's ride and feel much nicer? What is the realistic weight difference? My next bike will be the 450. Just want to know what I can look forward to!

  • grayracer513

Posted September 13, 2005 - 08:38 AM

#2

The realistic weight difference is more than 15 pounds between a '00 and an '04. They feel even lighter than that. The power difference is there, too, and the earlier two years are especially a lot snappier natured, even to the point of being a little hard to ride because of it in some circumstances. Nothing that can't be dealt with, though.

  • ripntear

Posted September 13, 2005 - 09:25 AM

#3

Great question!
I too have wondered which of the bikes from 2000 to 2005 is the one to have. I hear lots of good things about the '03's and I think it's due mainly to the peppy engine. I would like to know which of the current 450's most people perfer, '03, '04 or '05?

  • 913YZ426MXer

Posted September 13, 2005 - 12:14 PM

#4

Ride one! Saddling an '01 YZ426 for years my buddy got his '05 450..........and man you can feel it! Pulls harder, feels tighter, a bit lighter (though I am not a professional I couldn't tell the difference, weight wise).

  • Crabtree426

Posted September 13, 2005 - 05:34 PM

#5

The realistic weight difference is more than 15 pounds between a '00 and an '04. They feel even lighter than that. The power difference is there, too, and the earlier two years are especially a lot snappier natured, even to the point of being a little hard to ride because of it in some circumstances. Nothing that can't be dealt with, though.

Sounds awesome. Oh yeah, how do you like your fly weight?

  • Crabtree426

Posted September 13, 2005 - 05:36 PM

#6

Ride one! Saddling an '01 YZ426 for years my buddy got his '05 450..........and man you can feel it! Pulls harder, feels tighter, a bit lighter (though I am not a professional I couldn't tell the difference, weight wise).

Did it seem any more comfortable or stable cornering?

  • ONLY4STROKES

Posted September 13, 2005 - 07:24 PM

#7

I would like to know which of the current 450's most people perfer, '03, '04 or '05?


Most prefer the '05, because its a much mellower bike. Its actually down three horsepower from the '03 model. Thats good news for everyone except Chad Reed.

  • 00YZ426FMRCD

Posted September 13, 2005 - 07:28 PM

#8

Suspension and handling is the biggest difference. Night and day stock for stock. I believe the weight difference is about 11lbs - feels like about 30lbs though...

  • ONLY4STROKES

Posted September 13, 2005 - 07:30 PM

#9

Suspension and handling is the biggest difference. Night and day stock for stock. I believe the weight difference is about 11lbs - feels like about 30lbs though...

Actually its closer to a 15 pound difference. Read further up the page.

  • Matt96xr6

Posted September 13, 2005 - 10:11 PM

#10

I had a 00 426, now have the 05 250F and 03 450F.

Suspension wise, the 03 is better than the 00 stuff I had even with tanks and then gold valved. The 03 is stock. Shock could use a revalve, but worlds better than the 00 stuff.

Now the 05 is just no comparison with the ASSOS forks. They are sweet. Cannot wait for the S3 stuff in 06 now.

Weight wise, the 03 is lighter than the 00 even the lightest 426 from 02. The ergos are better on the 03 bikes so it is easier to move your weight around than the earlier 98-02 setup. The 450 feels lighter than the 426. The weight is more centralized for sure.

Handling, the 03 is better once you get the suspension setup properly. The 426 was a decent handling bike, but the 450 geometery improvements can be felt.

Power, my 426 had the 450 ex cam installed. It had good low and just an insane midrange hit that made it almost unrideable on a track. The 450 in 03 does not hit as hard, but has more power everywhere. It definately pulls harder through the midrange to top end. Much more explosive also. Jetting is way improved from the 426 days to say the least! Just expect to put a JD kit in your bike to make it run right. Or like I did use the RED needle from the 4xx kit that I had laying around!

The 03 is the hardest hitting 450 made. I can see a flywheel weight taming the bike right down. The bike is manageable with good throttle control and lots of holding the bike with your knees. The 450 is a better bike, just spend some time setting up the suspension! You definately dont need more power.

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  • ripntear

Posted September 14, 2005 - 02:44 AM

#11

Thanks for the comparison Matt.

Great take on your 1st hand knowledge.

There is definitely a YZ450 in my future. We'll just have to wait and see if it's an '06 or not.

  • Butta

Posted September 14, 2005 - 04:11 AM

#12

Most prefer the '05, because its a much mellower bike. Its actually down three horsepower from the '03 model. Thats good news for everyone except Chad Reed.



Out of curiosity, where did you pull that information from?

  • Crabtree426

Posted September 14, 2005 - 07:37 AM

#13

I had heard that the 03 had ridiculous power but I can't remember where.

  • 913YZ426MXer

Posted September 14, 2005 - 08:57 AM

#14

Did it seem any more comfortable or stable cornering?


Crabby,

The tightness was felt primarliy through the cornerning. Comfortable on jumps, corners, hills, straights, etc....... It will be a few more months until I get one.

Cheers.

  • grayracer513

Posted September 14, 2005 - 10:10 AM

#15

how do you like your fly weight?

It's about right. I think it needs 5 or 6 over stock for MX, and the GYT-R Off-Road or Dr.D 8oz wheels for the woods. I don't know how anyone rides an '03 and is happy with it with the stock flywheel.

One of the things you notice is that in a lot of situations with a lighter flywheel, where the bike used to just break free when you grab the throttle, it bites with the heavier one. You can notice an ounce of difference that way in a lot of cases.

  • Crabtree426

Posted September 14, 2005 - 03:42 PM

#16

Crabby,

The tightness was felt primarliy through the cornerning. Comfortable on jumps, corners, hills, straights, etc....... It will be a few more months until I get one.

Cheers.

Congrats in advance on getting one. Let us know how you like it.

  • bob333

Posted September 15, 2005 - 08:19 PM

#17

I had heard that the 03 had ridiculous power but I can't remember where.

I think that was MXA

  • kbenzon

Posted September 19, 2005 - 07:28 PM

#18

handling is probably the most noticeable difference for me. from my 01 426 the the 05 450. my built 426 was more peppy than the stock 450 but with cheap mods the newer bike is a sure fire winner. dont sell your yz though. new bikes are always cool but they are susposed to be. your bike will be able to compete for a while man.

  • vince80

Posted September 21, 2005 - 01:13 AM

#19

I have an 03 450 and all I have on it is a pipe, other than that it is all stock. Yes the bike has a lot of power, but thats why I bought it. :banghead:

  • 00YZ426FMRCD

Posted September 21, 2005 - 06:33 AM

#20

Actually its closer to a 15 pound difference. Read further up the page.

I did read further up the page before I posted and was correcting the post that mentioned there was a 15lbs difference.

Here are the facts:

Dry Weight:

01-02 YZ426F = 231lbs
2003 YZ450F = 222lbs
2004 YZ450F = 222lbs
2005 YZ450F = 220lbs
2006 YZ450F = 220lbs
___________________________

I'll let you do the math but the #'s are: 9 & 11lbs (Not 15lbs) :banghead:

As I mentioned earlier, regardless of the facts, the weight difference feels like alot more between my 426 and the 03-05 450's I have ridden. The handling, suspension & weight is the most noticeable diff.

* Note- All models roughly hold same amount of gas & oil. I would have thought that the 06 with the Alum. frame would have been a little lighter than the 05 but they are the same weight.





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