Ktm 1190 r adventure gearing?

Discussion in 'Ridiculous streetbikes with 6 CPUs and too much HP' started by JoeShoreline, Mar 1, 2014.

  1. JoeShoreline

    JoeShoreline Adventurer

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    Has anyone come up with a suitable gearing selection for off-road for the 2014 KTM 1190r? It seems to be geared tall enough for the road but way too tall for local fire roads I would like to make a change to the countershaft sprocket and drop one or possibly two teeth tried it here?
    #1
  2. Nowwhat

    Nowwhat I'll Go Second...

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    Dropped one on the front....worked out great....
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  3. ebrew

    ebrew Motorcycle A.D.D.

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    Two in the rear. No chain mod required
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  4. Harold Waikiki

    Harold Waikiki oldfatdumbbrokeoutofshape

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    doing the same as nowwhat.
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  5. JBird

    JBird Retriever

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    Went up 3 on the rear. Stock chain
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  6. PPiA

    PPiA Pete

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    16 on the front.
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  7. DirtJack

    DirtJack Adventurer

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    42 42 44 45 % 17 16 17 17
    2.47059 2.625 2.58824 2.64706

    Here are the ratios, stock 17/42, 16/42, 17/44, 17/45

    Hard to notice the difference between 16/42 and 17/45. Nice that all of these can be done with the standard chain. IMO, changing the front is easier than the rear.
    #7
  8. kag

    kag Wander Lust

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    And here I am wanting it geared higher.....:D
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  9. DirtJack

    DirtJack Adventurer

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    :huh Ok, so http://www.cs.trinity.edu/~jhowland/speed.cgi?mc=2014+KTM+1190R&primary=40r76&circumference=21270&ratios=12r35+15r32+18r30+20r27+24r27+27r26&rpm=1000+1500+2000+3000+4000+5000+6000+7000+8000+9000&final=17r42 is a link to compute:

    Speed table for 2014 KTM 1190R

    Primary drive ratio = 40r76

    Rear Wheel Circumference = 2127 mm

    Gear ratios = 12r35 15r32 18r30 20r27 24r27 27r26

    RPMs = 1000 1500 2000 3000 4000 5000 6000 7000 8000 9000

    Final drive ratio = 17r42
    <pre>
    _ 1000 1500 2000 3000 4000 5000 6000 7000 8000 9000
    1 6 9 12 17 23 29 35 41 46 52
    2 8 12 16 24 32 40 48 55 63 71
    3 10 15 20 30 41 51 61 71 81 91
    4 13 19 25 38 50 63 75 88 100 113
    5 15 23 30 45 60 75 90 105 120 135
    6 18 26 35 53 70 88 105 123 140 158
    </pre>

    So at idle (1500 rpm) your scooting along at 9 mph. Lot's of clutch slipping on single track. :D

    You can copy/paste the above link and edit the very last entry 17r42 to what ever final gearing you want to use (say 16r45) to see what speeds you get with that gearing.

    16/45 final gearing.
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  10. kag

    kag Wander Lust

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    Ummmm......lots of time on your hands.......:1drinkLike me .....

    I have no real intention of gearing it higher....was occupying my time on a very cold and snowy day. :roflSo ready for winter to be over.

    Also glad I gave up of Aeronautics and went medical :wink: prettier girls and all.....

    Tarmac and gravel is about all I will do so gearing it lower for me serves no function and its already damn fast
    #10
  11. DirtJack

    DirtJack Adventurer

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    :rofl Yea, former education which is pretty much useless now. :D
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  12. Harold Waikiki

    Harold Waikiki oldfatdumbbrokeoutofshape

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    I am WAY to dumb to understand/figure this out!!
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  13. JoeShoreline

    JoeShoreline Adventurer

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    Thank you for this post that's exactly what I was looking for. I am more than likely going to go from 17/42 to 16/45. That way the bike will still retain its street ability while being suitable for off Road. After all who here really has a use for 160+ miles per hour. On a sidenote; 1 tooth in the front is equal to three teeth in the rear.
    #13
  14. DirtJack

    DirtJack Adventurer

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    :D Click on the link in the message and it will take you to a web site which produces the table shown in the message.

    On that page, the URL shown in the browser line ends in 17r42. This represents the OEM final gear ratio. Use the cursor arrows to change the 17r42 to some other set of sprocket values leaving everything else intact on the browser line. Press enter and the program will compute the speeds at various rpm's for each of the gears for the new sprocket values. Here's the link again.
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  15. DirtJack

    DirtJack Adventurer

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    16/45 is what I used to run on my 2007 990. Worked great there. Probably will work even better on the 1190R.

    This program assumes an 18" rear wheel. One of its inputs needs to be changed for the outside circumference of the 17" rear wheel if you have an 1190 Adventure. The value you input is 10 times the circumference in mm. In the example I used

    circumference=21270

    was for the 18" wheel. All these input values show up on the browser URL line and can be edited in the usual way on what ever computer/phone/pad you use.
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  16. JoeShoreline

    JoeShoreline Adventurer

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    Dirt Jack have the exact same bikes as you have right now . In my opinion some of the best in the world right now. I also have a 500 Exc which would definitely be a good addition to your collection. 1190r 690r 300xc500exc it doesn't get much better than that.
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  17. DirtJack

    DirtJack Adventurer

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    I've actually thought about adding a 500 that is tempting me on the Dealer's showroom floor. :D
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  18. ridewestKTM

    ridewestKTM Long timer

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    The top to bottom ratio seems to small for a 6 speed bike of the size. Have you confirmed the numbers with a test?
    By the numbers (I got them too so I am not sugesting your records) top to bottom is 2.8:1 for comparison the 950/990 is 3:1. I was surprised by the published numbers so I thought I'd ask.
    #18
  19. DirtJack

    DirtJack Adventurer

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    It's pouring rain here and I don't have a seat for my bike, so no, I haven't checked them recently.

    I just copied the numbers for the ratios out of my 1190R manual. Just double checked to insure that there were no typos. The only value which might be in dispute (but wouldn't affect the ratio spread) is the outside circumference of the OEM rear tire (I didn't measure that, but will do it now). My TrailAttack 2 measures 82.125 in = (about) 2086 mm.

    So http://www.cs.trinity.edu/~jhowland...500+7000+7500+8000+8500+9000+9500&final=17r42 is a revised link to show slightly lower speeds for the measured circumference of a TrailAttack 2 rear.

    <pre>
    Speed table for 2014 KTM 1190 R
    Primary drive ratio = 40r76
    Rear Wheel Circumference = 2086 mm
    Gear ratios = 12r35 15r32 18r30 20r27 24r27 27r26
    RPMs = 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500
    Final drive ratio = 17r42

    _ 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500
    1 6 9 11 14 17 20 23 26 28 31 34 37 40 43 45 48 51 54
    2 8 12 16 19 23 27 31 35 39 43 47 50 54 58 62 66 70 74
    3 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 84 89 94
    4 12 18 25 31 37 43 49 55 61 67 74 80 86 92 98 104 110 117
    5 15 22 29 37 44 52 59 66 74 81 88 96 103 110 118 125 133 140
    6 17 26 34 43 52 60 69 77 86 95 103 112 120 129 138 146 155 163
    </pre>
    #19
  20. ridewestKTM

    ridewestKTM Long timer

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    It's nice seeing riders taking an analitical view.
    I found the same numbers I know it wasn't a typo.
    I really like wide spread gearboxes. I find my 950's a bit short of range. So I have two sprockets. Just can't quite get then to swap by moving the shifter.
    #20