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.
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
Headset bearing, 40x52x7 mm (45x45o) This size bearing is also known in the bike Industry by these part numbers: HSS 6011, BAA0695K, TH-070, MR-128, MH-P16, TH MR082
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
