3x Japanese Koyo Japan Bearings (2x Rear Wheel + 1x Sprocket Bearing). The answer is easy, Pyramid Parts Oil seals are all Low Stiction (low friction) seals designed specifically for motorcycles. 2x Dust seals.
RSProRiders - Rear Wheel Bearings & Seals Compatible with SUR-Ron Ultra Bee
KTM Front & Rear Wheel Bearings EXC EXCF SX SXF 125 144 150 250 300 450 500 400
Yamaha YZF R6 600 Rear Wheel Bearings & Seals 1999 - 2002
Rear Wheel Bearings & Seals for Yamaha YZF-R1 98-99
Koyo Suzuki GSX-R1000 GSXR1000 Front & Rear Wheel Bearings & Seals 01 - 20
SKF Kawasaki Z1000 Front & Rear Wheel Bearings & Seals 03-09
