Under normal driving conditions, the rim shoulders are put under a lot of pressure and it is their job to protect the tyre bed and, together with the hump, ensure that the tyre remains in place. To guarantee optimum stability, a higher strength material is used for this section of the light alloy wheel. However, this increases the weight and the rotating mass and makes the wheel more difficult to steer. By applying Air Inside Technology to all of its wheel types, BBS is able to counteract these effects by using hollow rim shoulders to combine weight optimisation with outstanding stability.
