Timbersled TKI Belt Drive 2017-2021 any reviews?

Dec 19, 2007
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I'm not going to refute any data about how much hp it frees up but if you want to see if you can notice the difference you could throw on a set of non-oring chains for a day. I run the rk brand and it's less than $50. The Mx industry has assumed for 3 decades that it makes more power.
 

cbc76am

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Dec 5, 2016
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it's amazing. I can spin the track with one hand when its up on the stand.... free wheeling on a down hill now requires brakes as the drag has been drastically reduced on the drivetrain. I also have the 2" larger rear wheels from Tom. You have to align the jack shaft to the axel on the kit before installing the belt drive... Tom has a youtube video on it. They come off plane from each other often out of the factory.

Does it get more horsepower to the ground? Absolutely... can you feel it? Not really... but it's so much more efficient on downhills that it has to be making a difference.

There is something far more beneficial about it though.... the throttle lag of two drive chains when on and off the gas is really reduced, and so is the vibration. That is worth the money alone for me. Then go to 15/18 gearing with the chain slider flipped over on the primary drive line and it's 1000% less vibration and input lag to the track. I'll never go back to the TS stock clunky nonsense after the silky connected feel I have now with the TKI and the primary chain modifications.. it's also 10% of the maintenance, it's always drum tight and needs no lube.
 

yooper01

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Mar 18, 2014
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Why would these fit a 2017 but not a 2016?

Aro wasn’t out until 2018. Are they just advertised wrong?


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cbc76am

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I don't believe the 17 chain case dimensions are the same, nor the raw. Likely a misprint... But reach out tom at tki and ask. Phone is easiest, he's super helpful.
 
Nov 14, 2020
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it's amazing. I can spin the track with one hand when its up on the stand.... free wheeling on a down hill now requires brakes as the drag has been drastically reduced on the drivetrain. I also have the 2" larger rear wheels from Tom. You have to align the jack shaft to the axel on the kit before installing the belt drive... Tom has a youtube video on it. They come off plane from each other often out of the factory.

Does it get more horsepower to the ground? Absolutely... can you feel it? Not really... but it's so much more efficient on downhills that it has to be making a difference.

There is something far more beneficial about it though.... the throttle lag of two drive chains when on and off the gas is really reduced, and so is the vibration. That is worth the money alone for me. Then go to 15/18 gearing with the chain slider flipped over on the primary drive line and it's 1000% less vibration and input lag to the track. I'll never go back to the TS stock clunky nonsense after the silky connected feel I have now with the TKI and the primary chain modifications.. it's also 10% of the maintenance, it's always drum tight and needs no lube.

I'm interested in the 15/18 gearing. I'll be running a riot 120 on a 500 and was curious if I should gear for more track speed and less torque. The bike comes with a 13t sprocket.
 

cbc76am

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TKI makes one to one even gearing on the belt drive. There isn't much variation you can do with that. 15/18 is very close to 13/16 that you have stock. The 500 ktm motor is a torque motor and doesn't Rev out as fast or high as a 450. The gear ratio is wide in the transmission also. I wouldn't worry too much about changing it. Run it stock to start. Try flipping the gears in the secondary drive on the riot. 18/17 is stock, try it 17/18. Decide which you prefer, if somewhere in the middle seems ideal, order another 17 or get the tki belt drive.
 
Sep 18, 2018
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I posted a extremely scientific video a while ago.....check it out. (Note this was just for my own peace of mind and i wanted to do it)



My original post is on the "Timbersled, Yeti, everything Snowbike" Facebook page.
 
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