Uneven brake pad wear or imbalance between 'in-board' and 'out-board' pads.

Reason

Incorrect alignment of brake pads within caliper housing. Poor brake caliper alignmen. Pad 'sticking' - brake caliper not sliding correctly. Caliper not cleaned properly (excessive contamination). Lack of lubrication.

Action

Check/service brake caliper components. Replace fitting kits and lubricate 'sliders' with Mintex Cera TEC.