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Hello everyone! I purchased a 2021 1290 super duke R a couple months ago and absolutely love it, I just have one major issue. Anytime I'm on the freeway and roll on the throttle and get some speed I get terrible speed wobbles. I tried adjusting the suspension but honestly I'm obviously missing something because whatever I do its screwed up. Any have any tips or anything to fix this?
 

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Hello everyone! I purchased a 2021 1290 super duke R a couple months ago and absolutely love it, I just have one major issue. Anytime I'm on the freeway and roll on the throttle and get some speed I get terrible speed wobbles. I tried adjusting the suspension but honestly I'm obviously missing something because whatever I do its screwed up. Any have any tips or anything to fix this?
 

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I have a 21 superduke and i get some front end shake when i ride it hard,its the stock steering dampner,they are junk.i had a 16 superduke and i put a thicker viscosity oil in the dampner and it made a world of differance,looks like i will do the same to the 21.
 

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If you are capable you could try straightening the front end in case something is tweaked. A dealer is in the best position to help you with that unless you have a suspension specialist in your area or can do it yourself. Good suspension guys are well worth the money. BTW, I also recommend rebuilding the stock damper with heavier fluid like Roy suggested. It transformed my GT into an all around better bike. A better damper would be even better but a rebuilt one is a pretty good solution. Cheers!
 

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I ordered a Hyperpro yesterday, I do not like the stock dampeners from any brand, on my Gixxers that was always the first thing I swapped.
 

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Snuggin up the steering head bearings a tad would help too, 30 degree turn of the nut made a big difference on my GT.
 

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What do you weigh? If the bikes “choppered out” because of the rear being to soft for your weight, it will tend to exhibit this more too, or at least thats my understanding.

I get gentle and small undulations on the crappy California concrete freeways, but it’s the only time I notice it. Off the freeway I don’t notice it. The damper (not dampener) although is very under damped is not really designed to damp gentle oscillations, they are designed more for aggressive head shakes, and they are generally a poor fix for poor suspension setup, on most bikes. (Bandaid)

I don’t have enough experience with the Super Duke specifically yet, I’ve only had mine since January, but so far, no real issues here for me at least.
 

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Hello everyone! I purchased a 2021 1290 super duke R a couple months ago and absolutely love it, I just have one major issue. Anytime I'm on the freeway and roll on the throttle and get some speed I get terrible speed wobbles. I tried adjusting the suspension but honestly I'm obviously missing something because whatever I do its screwed up. Any have any tips or anything to fix this?
drink more tequila... cures high speed wobbles

😎👍
 

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If you are really hard on the gas with front lifting and you get wobbles, then it is steering dampener not having enough damping. I ride like a maniac and I had to upgrade steering dampener on my Gen3 Duke. WP made, adjustable, official factory accessory. Sucks to pay for this, but it solved stability issue for me.
 

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The factory damper fails to filter out a lot of movement through the front that you will feel in the bars. The result is that the front feels 'lively' to put it in a positive word. Once you chuck a proper damper at it, you'll instantly notice just how much the standard unit is not up to the job. The difference is impossible not to notice.
 

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Agree the stock steering damper is rubbish.

When my '21 went in for it's first service it was found to have slightly loose head stem bearings.

I had babied it during this period and wasn't lofting the front wheel or anything so it's a bit surprising really, but it did help alleviate (not eliminate) the unsettling of the front end that i would experience with mid corner bumps at high speeds.

As others have said, i would get the dealer to have a look.
 

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I had to adjust head stem bearing on my 20 too. From day 1 the bike had this weird sensation under brakes, it is really hard to describe. Some people less sensitive to this sort of stuff may think it is normal. It would also sort of clunk if you hold front brake and bounce it back and forth compressing the fork. It is not to be confused with floating rotors oscillating when doing it. It is more pronounced than that when your head bearing is loose.
I had dealer adjust it and that whole weird feeling when braking hard disappeared.
Not sure if it was contributing to wobbles, but I surely didn’t like that regardless.


Agree the stock steering damper is rubbish.

When my '21 went in for it's first service it was found to have slightly loose head stem bearings.



I had babied it during this period and wasn't lofting the front wheel or anything so it's a bit surprising really, but it did help alleviate (not eliminate) the unsettling of the front end that i would experience with mid corner bumps at high speeds.

As others have said, i would get the dealer to have a look.
 

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I just changed out the 5W oil in the stock steering damper for 10W, i did this also on my ex GT and 790, it made a small difference, 10W is what i have, but 15W may have given a better result.
 

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Hello everyone! I purchased a 2021 1290 super duke R a couple months ago and absolutely love it, I just have one major issue. Anytime I'm on the freeway and roll on the throttle and get some speed I get terrible speed wobbles. I tried adjusting the suspension but honestly I'm obviously missing something because whatever I do its screwed up. Any have any tips or anything to fix this?
Adjust you suspension. I had the same issue when I left the dealership. The problem was gone after doing the sag, compression and rebound.
 
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