The SRAM GXP Team bottom bracket is designed for fat bikes and delivers flawless performance at an inexpensive price. The cartridge bearings use gutter seal technology to keep the elements out and the grease in for significantly increased longevity over previous incarnations. SRAM's new Gutter seal system takes a two stage approach in directing contaminates away from the bearings providing longer bearing life. The GXP system uses two bicycle-specific cartridge bearings and eight seals for a smooth and long lasting ride.