Shimano 105 BB-5500 Octalink Bottom Bracket Select:68 x 118.5mm The full 30 mm inner

The full 30 mm inner width creates a large tyre volume and harmonises perfectly with the Plus tyres that are very popular on e-mountain bikes

Dual-piston caliper for balanced braking force

so that your vision is not affected by mud and dirt on your goggles

and functional technologies

Supports Fat Bike and 29 size wheels and tyres

Shimano 105 BB-5500 Octalink Bottom Bracket Select:68 x 118.5mm The full 30 mm innerShimano 105 BB 5500 Octalink Bottom Bracket The Shimano BB 5500 Octalink V1 Bottom Bracket is a precision engineered unit designed for Shimano Octalink V1 spline road cranksets. Built to Shimanos exacting standards, it delivers smooth bearing performance, efficient power transfer and long term durability, making it ideal for restoring or maintaining classic Shimano drivetrains. Designed for frames with a 68mm English threaded bottom bracket shell and