Yamaha WR250R Mega Thread

Discussion in 'Thumpers' started by Sock Monkey, Apr 7, 2008.

  1. AZ TOM

    AZ TOM Long timer

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    Mess with it when you get home. Doing all pavement your Seat Concepts seat should give you enough comfort for the ride:wink:
  2. rdouthit

    rdouthit Adventurer

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    Thank you.

    I am running a 4.60 on the rear, also. I was wondering if going to a 5.10 would gain me any traction with the larger footprint or if I would just gain the weight.
  3. Mr. Fisherman

    Mr. Fisherman PROUD 2B Riff Raff!

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    I am digging the 5.10 on the 17 wheel rear... Will do it again.
  4. iWander

    iWander Adventure Geek

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    Huh, I guess math really can be interesting. Makes me wish I had stayed awake more in class...
  5. BlueLghtning

    BlueLghtning Riding is my passion

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    I could see the 5.10 on the 17" wheel because I think its actually a wider rim than the 18" rim? On the 18" rim, I think it will just be pinched not sure it will really gain you anything except extra weight and a higher cost.
  6. ADWrider

    ADWrider AKA Acorn27

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    I have the 5.1 on the 17". Fits good, looks killer, just wish I could ride I now...
  7. leftystrat62

    leftystrat62 Adventurer

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    Just pm'd you
  8. UtahFox

    UtahFox Been here awhile

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    Got my new Seat Concept seat, and have installed some USB power too. The tank bag is new, the duffel is packed and mounted with one and a half gallons of gas, as I plan on trying to get home with no slab. Not sure why I'm leaving though, was 82 here today and 35 where I'm going. :cry

    [​IMG]
  9. AZ TOM

    AZ TOM Long timer

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    Very exciting. Keep us posted & hollar if you have any problems. Lots of luck:clap
  10. Bluraywr

    Bluraywr Adventurer

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    Does anyone know if a Pirelli XCMH 140/80M-18 will fit the WRR?

    Thanks
  11. z@ch

    z@ch Turn it up to eleven

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    that sounds really big. it may fit, but the little WR is way happier with a smaller tire.
  12. Gitana

    Gitana A work in progress

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    In my last move, my OEM seat seems to have vanished. This is not good since I want Seat Concepts to send me their foam/cover and need something to put it on. Have one to sell? One to get rid of? Thanks!
  13. Bluraywr

    Bluraywr Adventurer

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    Thanks Z@ch
  14. GSBS

    GSBS FunHog

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    The WR-R is spec'd for a 120/80-18, which is about 4.7" in width. The 140/80-18 is about 5.5" wide and will be taller as well. The extra circumference would have the effect of making whatever gearing you're running taller (more top end, less grunt). Also, with a tire that large you might have clearance issues with the swing arm or need to get a longer chain to allow the wheel to be pushed farther back. I'd stick with a 120 size or there about.
  15. AZ TOM

    AZ TOM Long timer

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    Wait a minute, you lost your seat:eek1
  16. Bluraywr

    Bluraywr Adventurer

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    The Pirelli XCMH only comes in the sizes below. I guess that most are running 120/100 - 18. By my calculations this tire is about an inch taller than stock (4.8" vs 3.8").

    I'll just use a brand with the stock size.

    Thanks

    100/100 - 18
    110/100 - 18
    120/100 - 18
    140/80 - 18
  17. KansasBob

    KansasBob Been here awhile

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    The couch cushions! It's always the couch cushions.......................:rofl
  18. cjbiker

    cjbiker Nobody's Robot

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    The 110/100 - 18 is a good size. I ran one on my KLX, and will be putting one on my WR next.
  19. GSBS

    GSBS FunHog

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    FYI, I'm running the Pirelli MT43 DOT trials tire on my WR-R (4.00" x 18) and it is significantly taller than the stock 120/80-18 size. I compensated for the taller gearing effect with a 47T rear sprocket (+4) and still run the 13T front. Aside from being 1/2-inch taller (when the tire is new) there is no noticeable change in the feel of the bike. I'm on my third MT43 now and expect this to be my rear tires for the WR from now on. Very happy with it!
  20. Gitana

    Gitana A work in progress

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    Hahahha! I bought a Spiral Step Seat and it's like sitting on a brick. So if I can find my original seat, or get one through ADV, then the Seat Concepts foam/cover is going on it. We're heading to Capitol Reef/Escalante at the beginning of April, and my derriere would appreciate something more cush.