BB 6806 LLB OSID-bx - Headset bearing, 30.2x42x7 mm (45o ID) Primary application for this bearing size is as a direct replacement on some Pinarello bikes.

BB 6808 LLB BO 45-bx - Headset bearing, 40x52x7 mm (45o ID)

ACB 3645 1125 SS-bx - Headset bearing, 30.5x41.8x6.3 mm (36x45o)

ACB 3645 BOCC-bag - Headset bearing, 30.2x41x6.5 mm (36x45o). This size bearing is also known in the bike Industry by these part numbers: 27287-1046-004, HSS0130K, TH-873E, MR-122.

ACB 3645 SS-bag - Headset bearing, 30.2x41x6.5 mm (36x45o) This size bearing is also known in the bike Industry by these part numbers: 27287-1046-004, HSS0130K, TH-873E, MR-122

ACB 4545 1125 BO-bag - Headset bearing, 30.5x41.8x6.5 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

ACB 4545 125T SS-bx - Headset bearing, 34.1x46x67 mm (45x45o) This size bearing is also known in the bike Industry by these part numbers: MR168, 970S, IS46, IS46/34, TH MR082

ACB 4545 136 SS-bx - Headset bearing, 32.75x41.75x6 mm (45x45o). This size bearing is also known in the bike Industry by these part numbers: MR136, ACB418H6