BMW F10 vibration at a certain speed
Why does the F10 vibrate at a certain speed?
The most common causes are a tyre or rim that is out of round and torn hydro bushings of the thrust arm in the front arm. The vibration can come from a fault in the tyre carcass even if the balancing looks good. Also check the driveshaft joint boot, brake discs and wheel bearings.
How are tyre and rim vibrations diagnosed and fixed?
Tyre and rim runout can be measured with a RoadForce measurement, and the tyre's position on the rim is turned so that the runouts cancel each other. If the vibration remains, check the balance on another machine and clean the hubs and the centre bore of the rim. Tighten the bolts in a cross pattern.
Can rims or spacers cause vibration?
Yes. Cheap replica rims are often troublesome, and a small difference in the fit between the hub and the rim's centre bore is enough to cause vibration. A faulty spacer can also cause vibration. Different tyre widths front and rear alone do not usually cause vibration.