Vibration/rumbling noise HELP

[Caseyr56]

Hi everyone need some help here. I have a loud vibration/ rumbling noise on my FK2 from about 40mph that get seriously load around 70/80 and so on…
It’s unbearable at high speed, I can feel a slight vibration through the pedals but the noise is the worst.
I’ve just change the brake pads and rear discs. Wheel bearings are fine.

 

[Carl Hammond]

Have you tried swapping the wheels around to check it's not a buckled, damaged or very out of balance wheel, or even a bad tyre on the wheel?
If none of them maybe potentially a damaged/bent or imbalanced driveshaft

Then you'd be looking into alternatives like worn shocks or a loose part in the suspension or steering linkage.

However tire/wheel imbalance problems are normally found at speeds above 45 to 50 mph so I would say look into that first if you have not done the above already

 

[Caseyr56]

Have you tried swapping the wheels around to check it's not a buckled, damaged or very out of balance wheel, or even a bad tyre on the wheel?
If none of them maybe potentially a damaged/bent or imbalanced driveshaft

Then you'd be looking into alternatives like worn shocks or a loose part in the suspension or steering linkage.

However tire/wheel imbalance problems are normally found at speeds above 45 to 50 mph so I would say look into that first if you have not done the above already

Cheers! ill take a look at the wheels/tyres today. I think it might be the tyres but we shall see.