Uses common 'Campy' Campag style MR121 bearings. The top cover is 15mm, giving a total assembled height of ~33mm.
FSA Orbit C-40-ACB No.42 Headset Bearing Kit - Ceramic, Stainless, FSA, SLT
FSA ORBIT C 40 ACB NO. 42 REPLACEMENT TAPERED HEADSET BEARINGS TH870E TH073 C-40
FSA Orbit C-40-ACB 1.5 Headset (No.42/ACB) IS42 / IS52 Tapered Integrate Headset
Replacement Headset Bearings to fit FSA NO.42 ORBIT C-40 1-1/8" to 1.5" IS42 / IS52 Headsets
