Premium SKF ball bearings engineered for engine mount stability on Minarelli vertical-engine scooters including MBK Booster, Yamaha BW's, Slider, and Aprilia Amico.

This Stage6 bearing set — developed with leading manufacturers — delivers the precision and durability critical for secure motor mounting and safe operation.

The set includes two SKF bearings (15x32x9 mm) designed to handle engine bolt loads reliably.

During installation, inspect the engine bolt sleeve and circlips to confirm proper motor seating and optimal performance.