Sprockets = Gear Ratio Chart

Discussion in 'Common Items on Husqvarnas: Tires/tubes/grips/etc' started by chopt, Mar 18, 2009.

  1. chopt Husqvarna
    A Class

    Location:
    Louisiana
    I found this very helpful over the years, sorry if it's a re-post.

    Gear Ratio Chart
    Frnt 13F 14F 15F 16F 17F
    38 2.92 2.71 2.53 2.38 2.24
    39 3.00 2.79 2.60 2.44 2.29
    40 3.08 2.86 2.67 2.50 2.35
    41 3.15 2.93 2.73 2.56 2.41
    42 3.23 3.00 2.80 2.63 2.47
    43 3.31 3.07 2.87 2.69 2.53
    44 3.38 3.14 2.93 2.75 2.59
    45 3.46 3.21 3.00 2.81 2.65
    46 3.54 3.29 3.07 2.88 2.71
    47 3.62 3.36 3.13 2.94 2.76
    48 3.69 3.43 3.20 3.00 2.82
    49 3.77 3.50 3.27 3.06 2.88
    50 3.85 3.57 3.33 3.13 2.94
    chopt, Mar 18, 2009
    #1

  2. chopt Husqvarna
    A Class

    Location:
    Louisiana
    06 SM610
    I changed my gearing an here's the results:
    15/42 gave a 2.80 ratio - at 65mph/4500r's and at 70mph/4900r's.
    16/46 gave a 2.88 ratio - at 65mph/4900r's and at 70mph/5200r's.
    The extra .08 in the ratio change gave the bike the low-end I initially expected.
    chopt, Apr 20, 2009
    #2

  3. Coffee CH Owner

    Location:
    Between homes - in ft Wayne IN
    Husqvarna Motorcycle:
    2006 TE250, 2013 TR650 Terra - sold
    You sound like someone who knows what they want :thumbsup:
    Coffee, Apr 20, 2009
    #3

  4. chopt Husqvarna
    A Class

    Location:
    Louisiana
    LOL, I'm not at all a pro racer of the sorts. I have been riding nearly 30 years and on alot of 2-stroke dirtbikes, this was my first 4 stroke off-road bike and wanted the similar clutch/trigger action like the 2 strokers. Amazingly that little change made the difference I was looking for without sacrificing my highway cruising speed.

    I did alot of searching for this info to no avail so, I posted this experience hoping to give someone a head-start on their quest to properly gear the SM. input "peace-out" smile here.
    chopt, Apr 21, 2009
    #4