Want to here from you(wide gear ratio)


5 replies to this topic
  • wellsy1

Posted February 25, 2009 - 07:29 AM

#1

Want to here from you guys who have done ,or know somebody who have replaced there gears in there YZ450F with the WR450 tranny gears, for the wide gear ratio I read a couple of days ago. Also who is this good for? THe trail guy, supermoto, THe hair scrambler? I always think that i'm in the top of fourth gear on those long open roads, when i am really in fith. I mostly trail ride very little track riding. The 07WR450 gears will fit my 06YZ450F?

  • grayracer513

Posted February 25, 2009 - 07:46 AM

#2

The 07WR450 gears will fit my 06YZ450F?

Yes. It's much less expensive to convert an '06 than an earlier model, too.

http://www.thumperta...ad.php?t=464212

Trail riders, desert and hare & hound/enduro types will benefit. SM guys may prefer the closer ratio YZF trans.

  • swatdoc

Posted March 01, 2009 - 01:25 AM

#3

guys riding their YZ's on the street would like the WR trans also - keep the rpm's lower while cruising on the freeway without having to gear so high it feels like you're starting off in 3rd gear.

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  • wellsy1

Posted March 01, 2009 - 08:31 AM

#4

So does this tranny swap only effect 1ST and 5TH gear? Is 2ND 3RD 4TH pretty well the same as the YZ tran? I would hate to spend all that money and then not like it. How would I know that this would be the right swap for me? I've never rode a WR, so your guys input would be sweet.(also read the other thread posted the other day, just a couple questions of my own.)

  • grayracer513

Posted March 01, 2009 - 10:29 AM

#5

The gap between all of the gears is wider in the WR:

WR:
2.636
1.733
1.312
1.050
0.840

YZF
1.929
1.533
1.278
1.091
0.952

Here's a graph of how they compare. Think of this as if you were looking at the freewheel of a bicycle.

http://www.thumperta...95&d=1225085224

  • wellsy1

Posted March 01, 2009 - 10:55 AM

#6

Thanks gray. Love the input you have to give. That does help me. I'm thinking that I might just stay with the YZ setup. I think the shorter gears would benifit me a little more. Some pretty steep stuff here where in live, But there alot of logging roads. I dont think i need to go any faster. My bike still fly's with the YZ tran. For me that would be trouble, cause who does'nt like to go a little faster. Besides i'm onley 155lbs on a 450. That sucker pulls.





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