Shimano Bike Components XTR 970 Bottom Bracket Bearing Bronze Cage Each bearing features double metal

Each bearing features double metal shields to block out dust and dirt while maintaining high-speed capability

SF603ZZ Flanged Stainless Ball Bearing

and other linear motion systems

Set of 4 Bearings

Shimano Bike Components XTR 970 Bottom Bracket Bearing Bronze Cage Each bearing features double metalBall Bearings for Shimano Bike Components XTR 970 Bottom Bracket Closures: Rubber Sealed Closure Side: Double Sided Seals Lubrication: Low Friction Grease Material: Corrosion Resistant Chrome Steel Balls: High Chromium Steel 52100 SAE Steel Balls Cage: Low Friction Steel Precision: ABEC 1 Quality Brand: VXB Quantity: Set of two Bearings