Feature: Product Name: Steel Ball Diameter: 1mm - 20mm Material: Carbon Steel Standard: GB Hardness: HRC60-63
2x bike ball bearing cage loose retainer wheel hub axle headset crankshaft steel
2 x Weldtite 1/4" Bottom Bracket Caged Precision Bearings
11T 13T Aluminum Rear Derailleur Guide Pulley Wheel for Road Mountain and Bikes with Precision Bearings and Anodized Coating (13T(13 (blue))
ZUZZEE Aluminum Alloy 70mm Folding Bike Wheel for Brompton and For 3Sixty with Precision Bearings and Consistent Load Handling (red)
Vilgftyiet 11T/13T Aluminum Alloy Bicycle Rear Derailleur Guide Wheel with Precision Bearings for 8–11-Speed Drivetrains, Black 13T(black)
2 x 5/16 BMX ATB Bike Bottom Bracket Bearing Cage, Caged Precision Bearings