Our high performance Ceramic Bottom Brackets engineered with Italian threads are the perfect upgrade for your road or mountain bicycle. Engineered with our World Champion Ceramic Nitride Pro Series ceramic bearings with diamond polished ceramic balls.
What is the difference between Italian threaded and BSA bottom brackets? The main difference is in how they thread into the bottom bracket shell. On BSA bottom brackets, one side is reverse (left) threaded, while both sides of an Italian standard bottom bracket shell are regularly (right) threaded. The size of the shell is also different, with BSA bottom brackets using a 1.375” (34.92mm) diameter shell and Italian BB’s using a 36mm diameter shell. The width of the bottom bracket shell is also different; BSA bottom brackets are usually 68mm or 73mm wide, while Italian threaded bottom brackets come in at 70mm wide.
Both standards use a 24 TPI pitch thread.
Choose from 4 versions:
ITA ROAD SRAM
BB Shell ITA 36mm x 24 TPI thread pitch - 70mm wide for SRAM / Truvativ Road cranksets (including SRAM GXP)
ITA ROAD Shimano
BB Shell ITA 26mm x 24 TPI thread pitch - 70mm wide for Shimano HT-II Road Cranksets
BB Shell ITA 36mm x 24TPI thread pitch - 70mm wide for 30mm Cranksets
BB Shell ITA 26mm x 24TPI thread pitch - 70mm wide for SRAM DUB Cranksets (comes with tool)