Sumart Bottom Brackets | BB68/73S For SRAM Truvativ GXP 68/73mm

SUMART BB68/73S Bottom Bracket for SRAM & Truvativ GXP Cranks

The SUMART BB68/73S Bottom Bracket is designed for smooth performance, reliable sealing, and wide compatibility across modern threaded frames. Engineered for easy installation using standard tools, it offers excellent backward compatibility, allowing continued use of older cranksets without hassle.

Compatible with both 68mm and 73mm bottom bracket shells, this unit includes precision spacers for accurate fitment. Its double sealed cartridge bearings enhance durability while reducing seal drag, ensuring efficient power transfer and long-lasting performance in varied riding conditions.

Key Features

• Easy Installation – Works with standard bottom bracket tools
• Dual Shell Compatibility – Fits 68mm and 73mm threaded BB shells
• Enhanced Sealing – Improved protection against dust and moisture
• Low Seal Drag – Smooth and efficient crank rotation
• Crank Compatibility – Designed for SRAM and Truvativ GXP integrated spindle cranksets
• Fitment Spacers Included – Two 2.5mm spacers for precise shell width adjustment

Specifications

• Brand: SUMART
• Model / SKU: BB68/73S
• Material: AL6061 Aluminum
• Weight: Approx. 104 g
• Thread Standard: BC 1.37" x 24T
• Shell Width Compatibility: 68mm / 73mm
• Bearings: Double Sealed Cartridge

In The Box

• BB68/73S Bottom Bracket – 1 Set
• 2 × 2.5mm Spacers