1. Husqvarna Motorcycles Made In Sweden - About 1988 and older

Help - what is the XC transmission like vs CR

Discussion in 'Vintage/Left Kickers' started by GaryM, Jun 11, 2012.

  1. GaryM Husqvarna
    AA Class

    Location:
    Austin, Tx
    Husqvarna Motorcycle:
    1981 430cr second 430 CR 500cr
    Other Motorcycles:
    1981 490 Maico
    I have bought in a bundle/bunch of 500 parts - that includes a brand new 500 crank and
    a brand new 85 500XC tranny set. May install this XC tranny in 430 engine vs 500 engine it came from.

    These are brand new.


    What is it like comparing to the close ratio gearbox ratios to this XC tranny ratios. Is It closer on bottom and wider on the top ??

    If I don't use it I will sell it. I also have a really nice 430 CR tranny set here to use.

    Mostly ride closed course MX tracks but some trails also.

    Any feedback would be helpful.
  2. GaryM Husqvarna
    AA Class

    Location:
    Austin, Tx
    Husqvarna Motorcycle:
    1981 430cr second 430 CR 500cr
    Other Motorcycles:
    1981 490 Maico
    Any feedback would be helpful. Just want to know what to expect if I build a motor with this XC Ratios vs close ratio.
  3. husky jim Husqvarna
    AA Class

    Location:
    st.peters mo
    Husqvarna Motorcycle:
    14 WR300,87 430wr,86 430ae,88 250wr
    Other Motorcycles:
    BWM R1150Rt
    The xc tranny is the same as wr. Which is a 6 speed wide ratio. It has a lower first gear for easier take offs and climbing hills. It will also give more top speed with longer gears so less shifting. I had a cr along time ago it was harder to ride and alot more clutching. If you are a woods rider you want the xc tranny. I just built a 1987 430xc motor and used first second and third gears out of a 250wr. This should give ma a real low first gear for climbing hills.
  4. White Husky Husqvarna
    AA Class

    Location:
    UK
    People say the 4 speed gearboxes are stronger. I have a 6 speed XC but haven't ridden it enough to tell.
  5. hawaiidirtrider Husqvarna
    A Class

    Location:
    Oahu , Hawaii
    Husqvarna Motorcycle:
    1982 430 cr
    Other Motorcycles:
    01' cr 250 honda, 01 300ec, Beta 525

    Was the 82' cr a 4 speed? 6 speed right? i thought the 4 speeds went with the 500?.. not sure. I wish my bike was an xc but that can be dealt with in time.
  6. ruwfo Administrator

    Location:
    NJ
    Husqvarna Motorcycle:
    1980 390CR,1982 430CR, 1987 250WR
    Gary,
    I tell you the XC tranny is unless for MX on a 250, it's gearing way too high , u bog in 2nd or wheelie over
    in 1st on the starting gate.
    But you could probably get away with it on a 430/500, I'd guess it would be close to the 500CR 4 speed gearing,
    where 1st is more like 2nd.
    And i'm guessing in Texas you may be able to use 6th gear for some warp speed LOL.

    Husky John
  7. 2premo Husqvarna
    Pro Class

    Location:
    Northern NV
    Husqvarna Motorcycle:
    93 360, 87 CR250, 82 87 88 430
    Other Motorcycles:
    Sherco 300
    if you go to the Husky specs and look up the tech data and service bulletins
    you will see the different ratios used to pull off the different models, pretty much 6 speed parts are interchangeable as long as you have the matching gears you can really do as you please to mix it up, primary ratios were different on the cc's and secondary were used sometimes to make a model different

    http://www.cafehusky.com/threads/vi...ech-data-and-husvarna-service-bulletins.4694/
  8. ruwfo Administrator

    Location:
    NJ
    Husqvarna Motorcycle:
    1980 390CR,1982 430CR, 1987 250WR
    Jim,
    Sort of suprised you found the XC better in the woods. Over the Summer during the Husky Gathering I chased Drew Smith thru the woods on
    my 83 250CR & he was on my old 83 XC, we switch bikes a few times & we both thought the CR was better gearing for the tight woods. The XC
    had a nice low 1st gear but it seems like the gap between 1st & 2nd was too big, so you were always either screaming 1st or lugging 2nd, didn't
    seem to have that with the CR.

    Of course the extra power & torque of the 430 over the 250 would make all the difference in the world though.

    Husky John
    hawaiidirtrider likes this.
  9. Ron Husqvarna
    AA Class

    Location:
    Azusa, CA
    I has always been my understanding the XC like the OR had close ratio 1st thru 3rd and wide ratio 4th thru 6th. The idea came from SoCal desert racers that wanted low gears in the slow tight stuff, but needed the wide ratio 4th thru 6th for more top speed.
  10. oregonsage 4st Clerk

    Location:
    Dry Washington
    Husqvarna Motorcycle:
    FX450
    Other Motorcycles:
    Yamaha DT400 x 2, BMW G310R
    Yes, XCs were popular in the Oregon desert, too...but not the Oregon MX tracks
  11. jimspac Husqvarna
    Pro Class

    Location:
    Connecticut
    Husqvarna Motorcycle:
    82 250WR, 82 430WR, 84 250WR, 85 400
    Other Motorcycles:
    86 400WR, 82 Montesa Cota 349
    That was true for a few years starting with the release of the OR model. But I noticed when I started with Huskies again in 2007 and found resources like the year/model charts at Husqvarna-parts.com and vintagehusky.com, I noticed that after a point the WRs and XCs had the same engine number assigned to them
  12. street2dirt Husqvarna
    Pro Class

    Location:
    World's Most Famous Beach
    Husqvarna Motorcycle:
    12 TXC310, WR300, 85 125WR, 82 175XC
    Other Motorcycles:
    BMW G650X
    I always thought what Ron said also, 1-3=CR 4-6=WR. Never put ratio #s side by side though
  13. ruwfo Administrator

    Location:
    NJ
    Husqvarna Motorcycle:
    1980 390CR,1982 430CR, 1987 250WR
    Nope you got it reversed

    In 1978 Husqvarna introduced the OR (Optimal Ratio) model to fit the needs of high speed desert racers. The desert guys had been using CR's (Close Ratio), but when top end speed was increased on CR's with sprocket changes, the lo gears were too tall. To "optimize" the gearing, WR (Wide Ratio) gears were used for first second third, and the CR's gears were used for 4th, 5th, 6th. (I got this off Craig's site Huskyclub).

    That make more sense, cause i had 250OR & 250XC & the both had too low of 1st & too high of a 2nd gear for MX starts.

    Husky John
  14. Kartwheel68 Husqvarna
    Pro Class

    Location:
    Newnan, Georgia
    Husqvarna Motorcycle:
    82 125XC, 250XC, 430XC, 430WR, 250CR
    Other Motorcycles:
    83 175WR , 76 250WR, 74 250 Mag
    The XC/WR transmission works just fine in a 250 for MX but you have to gear it so you can do a motocross start in 2nd. This makes 1st very low, but you are never going to use it, you basically make it a 5 speed using 2nd-6th. This also works better in cross country too, 1st is just a bailout gear you almost never use. The only time this would not work is geared for the desert, and then the jump from 1st to 2nd is not an issue.

    As for the original post, the '82.5 500 4 speed transmission is much stronger because the gears are much wider. The 4 speed is just 2nd-5th out of the 6 speed as far as ratios go. I would go with a 6 speed, just because it adds versatility.
    hawaiidirtrider likes this.
  15. adam6402 Husqvarna
    AA Class

    Location:
    Tulsa, OK
    Husqvarna Motorcycle:
    None
    Right on, this is exactly what the Husky owners manual says if I could find it amongst all my junk