YZ426F gearing for a street, dirt, xc, adventure, you name it bike.


7 replies to this topic
  • Skithis

Posted February 14, 2008 - 10:03 AM

#1

I hear that stock gearing on the 426 is 14/49. I searched and found a threat where several guys were saying that there 426 topped out at 75 mph bone stock. I had a banshee that i radared at 80mph before and my 426 doesnt seem neerly that fast. Anyways, Im building this bike into a street legal machine. A lot of my riding will be 55-60mph. But I also enjoy riding trails. I dont want too long, but not too short either ya know. When i get home this weekend i will make sure the gearing is stock but i can almsot bet that its shorter than stock right now. SHould i go up to 15 or 16 in the front? Or lose some in the back? Anybody have similar setups on the road?

  • grayracer513

Posted February 14, 2008 - 11:08 AM

#2

A stock geared YZ426 would hit 80 at 10k in 5th, 92 at the rev limit, and be turning about 7500 at 60 mph.

This assumes perfect traction, however.

  • gbalias

Posted February 14, 2008 - 11:29 AM

#3

i use 14/44 on my supermoto, and on the back straight of the track, im passing people on the adjacent highway. if youre commuting, maybe even taller would be better.

  • grayracer513

Posted February 14, 2008 - 02:27 PM

#4

i use 14/44 on my supermoto, and on the back straight of the track, im passing people on the adjacent highway. if youre commuting, maybe even taller would be better.

What's the rear tire outside diameter with the 17's?

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  • gbalias

Posted February 14, 2008 - 04:20 PM

#5

havent done the math, the rear is a 150/60 tire.

i shoulda mentioned that though. heheh.

grey: always on top of things. :applause:

  • grayracer513

Posted February 14, 2008 - 04:34 PM

#6

That comes close to being a wash if the tire is 24". You're about 1 mph over stock.

  • kylwk1500

Posted February 14, 2008 - 06:08 PM

#7

if your riding both trail and supermoto, your best bet would probably be to find a happy medium for your rear sprocket, and get a few front sprockets to change out. its definately the easiest way

  • Skithis

Posted February 14, 2008 - 06:52 PM

#8

I think im gonna go up to 15 or 16 in the front first and see how i like it.





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