The ROTOR BSA Bearings Here you can choose between the different BSA bearings from Rotor. In total Rotor has 7 types of BSA bearings. Here’s a rundown: BSA24 – 24 mm – steel BSA24 -24 mm – ceramic These are suitable for the 24 mm Rotor cranks and for other brands with a 24 mm axle BSA24 ATB – 24 mm – steel BSA24 ATB – 24 mm – ceramic These are suitable for the 24 mm ROTOR MTB cranks and for other brands with a 24 mm axle BSA30 – 30 mm – steel (incl. tool) BSA30 – 30 mm – ceramic (incl. tool) These are suitable for the ALDHU series, VEGAST series and all INpowers and 2INpowers (also for 2INpower track) TRACK30 BSA – 30 mm – steel This is necessary for a ROTOR track crank set with a Track axle in combination with ALDHU & VEGAST crank arms, choose in combination with. 2INpower track for above BSA 30 bearings
