Grinding feeling at the rear

[anadivine]

Hi guys,

I own a PCX150 2014 model and have YSS shocks on it. Recently, I have been pillioning my girlfriend around and noticed that when the bike goes over a gradual hump, there seems to be some grinding noise/feeling at the rear area. Our combined weight is around 285lbs.

I managed to replicate the noise by bouncing up and down the bike with the pillion. Sounds like the rear wheel is rubbing again something. Anyone else encounter this?

Many thanks

[maddiedog]

Are they lowering shocks?

Get a flashlight and look up underneath your wheel well to see if there are rub marks. I bet there are!

If your YSS shocks are adjustable, you can mitigate the rubbing when riding 2-up by increasing the preload.

[Mel46]

I'm with maddie on this one. Your shocks may be set too soft, especially when riding two up. Adjust your shocks to get a stiffer ride and then try the same test again. That setting should be your standard setting for riding alone. Then have another setting for two up riding, this one stiffer than your solo setting. Your bike should not bottom out under normal riding conditions, which includes the occasional pot hole.

[anadivine]

thanks for the fast response guys! will adjust and update later today.

[anadivine]

Tightened it 4 full rounds. And it's fixed. Feels safer too, ride feels stiffer and more stable. Thanks again.

It shouldn't be a problem if I'm riding alone right?

[maddiedog]

Nah, not at all. It will be perfectly safe solo. I would double-check that both sides are on the same preload though.

It will hug corners better with more preload. I personally prefer the suspension harder, it leads to a less bouncy ride.

[you you]

Nah, not at all. It will be perfectly safe solo. I would double-check that both sides are on the same preload though.

It will hug corners better with more preload. I personally prefer the suspension harder, it leads to a less bouncy ride.

Try a desmosedici that'll cure you. I preference softer suspension with more travel and quality damping

[anadivine]

Nah, not at all. It will be perfectly safe solo. I would double-check that both sides are on the same preload though.

It will hug corners better with more preload. I personally prefer the suspension harder, it leads to a less bouncy ride.

whats the best way to make sure the preload are the same? i'm just using a small ruler. not sure if there are better methods out there.

[Jge64]

Extend the preload all the way out, threads completely showing. Count the revolutions you make with the preload tool. Match it on the other shock.....done. That being said, measuring like you are doing is more than sufficient.