18" Rear Wheel on an '01 - Any Issues?


5 replies to this topic
  • TARKaw

Posted December 14, 2009 - 08:56 AM

#1

Hi All,

Joined the forum recently and picked up a 2001 YZ426 on Saturday :moon:

In my excited blindness during the purchase I did not even notice that the rear wheel is an 18" like on the 1999 models - :smirk:
Guess I was too distracted by all the other goodness being displayed - receipts for completed top end rebuild at the local Yamaha shop :cheers: Well shoot, front and rear are both Excel wheels so I just assumed stock 2001.

Anyway once I got it home and started pulling things apart to get a closer look, clean, lube, adjust, replace etc. I realized the rear tire was a 120/100/18! So now the question; Will there be any negative or positive affect of having the 18" vs. a 19"? The sprocket gearing seems to be the same through the years when 18 and 19" wheels were used so I am not sure what other impacts this may have.

Thanks for your input

Troy

  • grayracer513

Posted December 14, 2009 - 09:08 AM

#2

In my excited blindness during the purchase I did not even notice that the rear wheel is an 18" like on the 1999 models

The YZ400/426/450 in all years has a 19" rear wheel, not an 18". The WR's all have 18" rears.

The 19" YZ wheels are used with lower profile */90 and */80x19 tires because these offer lighter weight and better cornering control at speed with low pressures. The off-road WR model uses an 18" rear with the full height */100 tires because they offer better protection to the rim from dents by rocks, protection from "pinch flats", and better traction at low speeds over extremely uneven surfaces such as rock piles and tree roots.

  • TARKaw

Posted December 14, 2009 - 09:19 AM

#3

The YZ400/426/450 in all years has a 19" rear wheel, not an 18". The WR's all have 18" rears.

The 19" YZ wheels are used with lower profile */90 and */80x19 tires because these offer lighter weight and better cornering control at speed with low pressures. The off-road WR model uses an 18" rear with the full height */100 tires because they offer better protection to the rim from dents by rocks, protection from "pinch flats", and better traction at low speeds over extremely uneven surfaces such as rock piles and tree roots.

Thanks grayracer513, that is good information. I did not realize the newer WR's were running a 19".

This is good news as I am primarily a trail rider so the 18" with the taller sidewall should suit my riding perfectly!

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  • grayracer513

Posted December 14, 2009 - 09:41 AM

#4

Thanks grayracer513, that is good information. I did not realize the newer WR's were running a 19".

What I said was that ALL WR's use an 18" rear. ALL YZ's use a 19".

  • TARKaw

Posted December 14, 2009 - 09:51 AM

#5

My bad - typo error on my part. 18's on the WR's, 19's on the YZ's - I better go get another cup of coffee!

  • suttona

Posted December 21, 2009 - 11:41 PM

#6

i also have wr rims on my 426 when purchased i ride mostly mx only few trails im a beginner to intermediate rider is it worth the 100 to 200 dollars to upgrade ? will i even notice a diff. im 5'7 150 pounds. will it make getting better any harder





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