English threaded. Spacers not included.
Shimano Bottom Bracket BB-RS501 Road Bike Threaded English Thread (Tiagra)
Shimano Tiagra BB-RS501 Threaded Bike Bottom Bracket English Thread BB Genuine
Shimano BB-MT801 Deore XT Bike / MTB Bottom Bracket - English Thread 68/73mm
Shimano UN55 68mm Shell English Thread Sealed Cartridge Taper Bottom Bracket
Shimano BB-R9100 Dura-Ace HollowTech II bearing cups - 68 mm English thread
Shimano Dura-Ace BB-R9100 - HollowTech II Bottom Bracket - English
