Headset bearing, 30.2x42x7 mm (45o ID) Primary application for this bearing size is as a direct replacement on some Pinarello bikes.

35x44x5 mm, used as an upper headset bearing in the Acros AI-70 Headset that is very popular headset on many Canyon Bikes.

Headset bearing, 30.5×41.8×6.5 mm (45x45o) This size bearing is also known in the bike Industry by these part numbers: MR042, 870E, MR121, MR070, MR084, MR116, TH-870E, MH-P08

Headset bearing, 40 x 52 x 6.5 mm, (36x45o) This size bearing is also known in the bike Industry by these part numbers: HD 1404K, BAA0006K, MR-127, MR-196, MH-P25K, BAA1132, TH MR019

Headset bearing, 40x53x7 mm (45x45o) This size bearings also known in the bike Industry by these part numbers: HD 1448, 281819

Headset bearing, 27.15x38x6.5 mm (36x45o) This size bearing is also known in the bike Industry by these part numbers: HD 1320K, 428420, TH-373, MR055, BAA1159, MH-P09K

Headset bearing, 27.15x38x6.5 mm (36x45o) This size bearings also known in the bike Industry by these part numbers: HD320K, 428420, TH-373, MR055, BAA1159, MH-P09K

Headset bearing, 14.2x25x6.5 mm (45x45o)

Headset bearing, 32.75×41.75×6 mm (45x45o). This size bearing is also known in the bike Industry by these part numbers: MR136, ACB418H6