Shimano Hollowtech II Threaded Bottom Bracket SM-BB93 -68/73 (BSA)

Shimano Hollowtech II Threaded Bottom Bracket SM-BB93 – 68/73 mm (BSA)

Designed for durability and smooth performance, the Shimano SM-BB93 XTR series bottom bracket features improved sealing compared to road models such as the BB-R9100 (Dura-Ace), SM-BBR60 (Ultegra) and BB-RS500 (105/Tiagra). Its robust construction helps keep dirt and moisture out, ensuring long-lasting performance in all riding conditions.

Features

• Genuine Shimano Hollowtech II bottom bracket assembly

• Includes left and right cups, spacers, inner sleeve, and O-rings

• Enhanced sealing for superior protection against water and debris

• Lightweight seal structure helps reduce unnecessary grams

• Sealed bearing design for smooth, low-maintenance performance

• Maintenance-free operation

• Compatible with Road, Gravel, and Mountain bikes using 24 mm Hollowtech II crank spindles

• Fits 68 mm and 73 mm BSA threaded bottom bracket shells

• Durable black anodized finish

• Simple installation and removal

Installation

Use Shimano TL-FC34 or TL-FC24 bottom bracket tools in conjunction with the TL-FC36 adapter.