Carbon fiber rims developed bubble with minor air leakage…about ~2psi per day. First noticed this deformity around ~Nov 2024 If there is a micro crack developed along the valve stem on a carbon fiber rim, then the wheel forces can cause the crack to grow and sudden loss of pressure, resulting in severe injury. Brought the motorcycle to a BMW dealership. BMW Motorrad says it is out of warranty and not a safety issue. Warning lamps only came on when tire is low on air. Online research indicates that this is/was a problem with 2020 K67 chassis equipped with Carbon Fiber rims