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chulander

MSuper X wheel wobbles (misalignment?)

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Hi everyone,

On the Tesla, I can quickly and cruise at 25-27 mph without any speed wobbles along the way.

On the MSuper X, replicating the behavior leads to automatic wheel wobbles where I have to compensate by re-positioning myself off-centered to lead with my left shoulder (or slow down and retry again)

I tried the wheel lift test but can't be certain of the results (appears to wobble) since I', not strong enough to hold the wheel steady till cutoff (could just be my body shaking and not the wheel).

My wheel is 49psi and with a bit more than 6oz of slime (I don't get how its possible to measure from that bottle).

Thanks everyone for your help!

I'll try to setup my phone to record the wheel test later tonight.

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Sad to hear, I too experienced it at first but tiny correction of the feet + finding right pressure did it for me so no more.

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6 hours ago, Electroman said:

Sad to hear, I too experienced it at first but tiny correction of the feet + finding right pressure did it for me so no more.

Thanks, surprisingly I am getting better results by mounting with my weaker left leg instead. Seems like it’s my mechanics at this point 

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18 hours ago, chulander said:

Thanks, surprisingly I am getting better results by mounting with my weaker left leg instead. Seems like it’s my mechanics at this point 

Could be yes, I can ride with feet in any position now by juts adjusting weight and balance, but still if rising real fast and to avoid any unwanted wobble I place my feet exactly where I want them and slightest changes makes a difference.

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2 hours ago, Electroman said:

Could be yes, I can ride with feet in any position now by juts adjusting weight and balance, but still if rising real fast and to avoid any unwanted wobble I place my feet exactly where I want them and slightest changes makes a difference.

I heard a werid squeal yesterday and tried to remove the side panels, when I got to the left pedals, it was stuck. A long painful process later, turns out the left rod is dented. I’m thinking maybe my rods weren’t centered or something about it was causing wheel wobbles. Hopefully when the new rods comes in, it’ll be wobble free

 

 

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The msx is very top heavy keep riding the wobbles will go away. I had them also and I still get them from time to time when braking. Give it a few more rides see if they go away

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I have not experienced that at all, but I did have Msuper v3s for about a year.

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14 hours ago, Jeremy Valentin said:

The msx is very top heavy keep riding the wobbles will go away. I had them also and I still get them from time to time when braking. Give it a few more rides see if they go away

Wobbles when braking can be fixed by adopting the 'sit down' method of braking like this (@6:31 in video)

 

 

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49 psi pretty high for the MSX. I ride 28 psi in my X after running 35 in my V3 and Tesla. You may want to try adjusting your tire pressure and seeing if anything changes. 

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Try lowering the PSI, the higher the PSI, the more squirrelly you wheel will be and more wobbles. Has to do with higher PSI having a smaller contact patch.  I usually go with 20% of your body weight in pounds.  If you get the wobbles from braking, it is because your legs are bent and you are applying unequal pressure.   I find that my wobbles go away immediately when I notice that my non dominant leg is bent and upon straightening it when braking wobbles go away.  

This is what works for me, but everyone is different so it may work for you or it may not.  

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My MSX tire is very hard, must check pressure later cause getting curious now to see where it's at?

Deliberately choose to sacrifice some of that amazing comfort that great tire provide for maximum performance instead for, difference for sure is noticeable to me and harder means faster, more reactive to input but so again I am quite heavy all things consider so?

 

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3 hours ago, eddiemoy said:

Try lowering the PSI, the higher the PSI, the more squirrelly you wheel will be and more wobbles. Has to do with higher PSI having a smaller contact patch.  I usually go with 20% of your body weight in pounds.  If you get the wobbles from braking, it is because your legs are bent and you are applying unequal pressure.   I find that my wobbles go away immediately when I notice that my non dominant leg is bent and upon straightening it when braking wobbles go away.  

This is what works for me, but everyone is different so it may work for you or it may not.  

thanks for the tip. The wobbles are more from the acceleration than the braking. 

I'll try lowering the pis (once the replacement pedal rods arrive). For some reason I figured the X would use a similar psi as the Tesla (tried everything from 30-45 and 45 felt about right).

 

Edited by chulander

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8 hours ago, eddiemoy said:

I usually go with 20% of your body weight in pounds.

Is 20% different if you don't use pounds???   :blink1:

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