Suitable for road or mountain bike use, this SRAM bottom bracket is equipped with Gutter Seal technology, which significantly improves protection from wet weather and reduces drag on the seals. SRAM has given it a  revised, cleaner look with its redesigned, forged cup. The SRAM Alloy GXP Bottom Bracket brings a new standard in external bearing performance as the custom steel bearings, sealed cartridge bearings, and tungsten finish offer a high-end, reliable bottom bracket.

Features:

• Use: Road or MTB
• Compatible with SRAM and Truvativ chainsets only
• Gutter Seal technology
• Improved tool engagement
• Sealed cartridge bearings
• Custom steel bearings
• Tungsten finish
• Compatibility (check your bike’s frame first):68/73mm for most MTBs, 83mm for many Downhill bikes, 70mm for many Italian road bikes

Technologies:

• GXP: Giga X Pipe External Bottom Bracket Bearing Assembly. While other systems rely on side loading the bearings to eliminate play, which causes premature bearing wear, the GXP system is different. The GXP system captures the left side bearing between the spindle and the left crank arm while allowing the drive-side bearing to float axially on the spindle, thereby eliminating the necessity to side-load bearings during adjustment. The simplicity of installation is refined: once it is tightened to the proper specifications you are ready to roll with a worry free BB. The GXP system uses two bicycle specific cartridge bearings and eight seals for a smooth and long-lasting ride.

Buy SRAM Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.