T120 Head Shake, Who has it? - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 85 (permalink) Old 12-15-2017, 09:07 PM Thread Starter
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T120 Head Shake, Who has it?

Wanted to see who else might be encountering head shake on their T120. I have a 2017 T120 and have a noticeable head shake from about 54mph down to 45-46 mph. If I remove my hands from the bars it will get violent to the point of going into a tank slapper essentially. I know ride with your hands on the bars, but the problem is it is still noticeable when you have your hands on the bars and just does not seem right. I was at the dealership today and they checked, spokes, steering stem, tire pressure etc. and basically told me to live with it or maybe get a stabilizer if I am that worried about it. I have ridden numerous bikes and numerous miles and have never had this issue on any of them at 55 mph. Of course at super high speeds I have seen this on other rides, but 55mph is like the speed I am constantly in around town. Anyway wanted to see if anyone else has had this issue and if you figured it out. Maybe its my tires? (Not pressure or anything, just the make/model) Any help would be appreciated.
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post #2 of 85 (permalink) Old 12-15-2017, 10:09 PM
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tires or road...anything special? My vintage ride gets really squirrely on those grooved surfaces on bridges..but that is tires. My '07 t-100 is smooth in range you mentioned.. Good luck.

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post #3 of 85 (permalink) Old 12-16-2017, 12:20 AM
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I haven’t noticed any issues. How many miles? Hit any curbs or potholes? If you have access to a dial gauge, check the runout. Sounds like a bad wheel. Did this just start happening? When did you first notice the issue? How long have you had the bike? Buy it new off the showroom floor? Keep us posted

Last edited by macunix; 12-16-2017 at 12:23 AM.
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post #4 of 85 (permalink) Old 12-16-2017, 07:55 AM
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Quote:
Originally Posted by Motard-Menace View Post
Wanted to see who else might be encountering head shake on their T120. I have a 2017 T120 and have a noticeable head shake from about 54mph down to 45-46 mph. If I remove my hands from the bars it will get violent to the point of going into a tank slapper essentially. I know ride with your hands on the bars, but the problem is it is still noticeable when you have your hands on the bars and just does not seem right. I was at the dealership today and they checked, spokes, steering stem, tire pressure etc. and basically told me to live with it or maybe get a stabilizer if I am that worried about it. I have ridden numerous bikes and numerous miles and have never had this issue on any of them at 55 mph. Of course at super high speeds I have seen this on other rides, but 55mph is like the speed I am constantly in around town. Anyway wanted to see if anyone else has had this issue and if you figured it out. Maybe its my tires? (Not pressure or anything, just the make/model) Any help would be appreciated.
Your tires are just worn. A new set will fix it. Until then, ride with your hands on the bars.
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post #5 of 85 (permalink) Old 12-16-2017, 08:50 AM
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No problems here.

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post #6 of 85 (permalink) Old 12-16-2017, 09:09 AM
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I have about 6,000 miles on my 2017 T120 never experienced head shake like you describe at any speed.

I put 32 lbs of pressure in the front tire (36 rear). I only got about 3,000 miles out of my front tire (original equipment).

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post #7 of 85 (permalink) Old 12-16-2017, 10:58 AM
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No shake on mine either. I'm guessing tires and/or tire balance. I had a lot of issues with a tire on my 01 BMW R1150GS. Rocky Mountain ATV installed it and used dynabeads to balance. I headed down the road and immediately took it back. They replaced the tire and the same thing happened. I road on it shaking for 300 miles and stopped at an authorized RMATV dealer and had them removed the beads and balance the wheels with weights. No more shake!

Beads work for some people but my experience has not been positive.

Get your wheel balanced.
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post #8 of 85 (permalink) Old 12-16-2017, 11:24 AM
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Have to agree, this is a tire problem or wheel balance problem, not a bike geometry problem.

I had issues with the OEM tires on grooved pavement (it’s everywhere here in SoCal) so I swapped out the factory rubber for a set of Pirelli Scorpion Trail II tires (at around only 500 miles on the odometer) and couldn’t be happier. They look more modern and perform great on all kinds of crappy pavement.
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post #9 of 85 (permalink) Old 12-16-2017, 01:25 PM
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I haven't experienced any handling or control issues with my '16 T120. Nothing but goodness from my perspective. Check you tires for wear or balance.
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post #10 of 85 (permalink) Old 12-16-2017, 03:18 PM
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I have around 5500 miles on my T120 and it has been doing the hands off head shake at those speeds for the last 1000-1500 miles.
I think it's the front or rear tire wear also.
I'm also using 32lb Front and 36lbs Rear air pressure.

Mine are actually wearing very very well and look like they will go to about +7000 miles, even using real legal tread depth measurements.

Unfortunately, the mild head shake bugs me too, so I bet I'll be doing two new tires next late spring early summer.
And they won't be these factory Pirelli tires if the consensus is, it's a tire issue.
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