DUB English Bottom Bracket BSA 73mm MTB SuperBoost Plus Sealed Cartridge Bearings With Gutter Seal Technology For Long Lasting Smooth Pedaling In Tough Trails Black

73mm BSA MTB Bottom Bracket with Gutter Seal single unit
✔️ Sealed cartridge bearings, 73mm BSA shell, DUB spindle

This DUB English Bottom Bracket is a sealed cartridge bearing unit designed for mountain bikes. It’s commonly used on modern MTB setups with Super Boost+ cranksets and 73mm BSA shells, delivering reliable power transfer in mud, water, and rugged trails.

✅ 73mm English/BSA shell width
✅ DUB spindle diameter 28.99mm
✅ Gutter Seal Technology for superior sealing
✅ Sealed cartridge bearings ISO 4210 compliant
✅ Aluminum cup material, black finish
✅ Compatible with Super Boost+ cranksets and MTB builds

💡 What is a bottom bracket with DUB spindle used for? This handy component connects crank arms to the frame, enabling smooth power transfer on MTB setups.

• It works across multiple bottom bracket standards for easy upgrades
• It seals against mud and water to extend bearing life
• It keeps crank arms aligned for consistent pedal effort