https://www.ironstable.com.tw/products/t47-asymmetrical-xd-15-pro-shimano-24mm-cranksets
T47 Asymmetrical shimano cranksets, Thread-In, XD15
T47 Asymmetrical, Thread-In, XD15 Ceramic-Hybrid, Angular-Contact Bearing Bottom Bracket for Shimano-type (24mm) spindles
shimano cranksetsthread inasymmetrical