Shimano Ultegra Road Bottom Bracket ITA 70mm

The Shimano Ultegra Hollowtech II bottom bracket in the ITA version is for road bikes with a 70 mm shell with ITA threading. It fits many Shimano Ultegra, 105, Metrea and GRX cranksets.

• Screws into a ITA M36 x 24T threaded shell, 70 mm wide
• Compatible with Ultegra FC-R8100, FC-R8000, 105 FC-R7100 and GRX FC-RX820 cranksets
• Hollowtech II system, designed for Shimano cranksets with an integrated axle
• Installation requires Shimano TL-FC32 or TL-FC36 tools, or the TL-FC33 insert
• Check your shell: 70 mm is the ITA version, while the BSA version is 68 mm

Technical specifications

• Type: Hollowtech II, ITA version
• Thread: ITA M36 x 24T
• Shell width: 70 mm (ITA)
• Manufacturer code: I-SMBBR60I
• Crankset compatibility: Ultegra FC-R8100, FC-R8100-P, FC-R8000, FC-6800; 105 FC-R7100, FC-R7000, FC-5800; Metrea FC-U5000; GRX FC-RX820, FC-RX810; FC-CX70
• Required tools: Tool TL-FC32 or TL-FC36, or TL-FC33 insert; TL-FC25 or TL-FC37 adaptor
• Colour: Black

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.