Shimano Acera BB-ES300 MTB BSA Bottom Bracket 121/68mm

The Shimano Acera BB-ES300 bottom bracket is a replacement cartridge unit for your MTB with a BSA threaded shell. It is suitable if you use an Octalink crankset and want to replace a worn bottom bracket.

• Sealed cartridge with integrated bearings: installs and replaces as a single unit
• BSA threaded fitting with a 68 mm shell, the standard on many MTB
• 121 mm steel axle, designed for Shimano Octalink cranksets
• Compatible with Octalink cranksets: check that yours is this type
• Before ordering, check the BSA thread, 68 mm shell and Octalink crankset

Technical specifications

• Type: Cartridge bottom bracket
• Fitting: BSA threaded
• Shell width: 68 mm
• Axle length: 121 mm
• Crankset compatibility: Shimano Octalink
• Axle material: Steel
• Bearings: Sealed, integrated into the cartridge
• Colour: Black
• EAN: 4524667326427

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.