Motoforti 10pcs 40mm x 20 Bicycle Ball Bearings Crank Wheel Bearing Retainer Long-lasting

• Accurate: [Material] : This ball bearing retainer made of stainless steel, , durable and high intensity.
• About: [Item Size] :Outer Diameter: 40mm/1.57"; Inner Diameter: 33.5mm/1.32". Package Include: 10 x Bicycle Ball Bearings.
• Information: [Item Feature] : This ball bearing retainer with 20 balls, which suitable for 33.5mm inner diameter head parts.It is a better replacement for you bike.
• Nice: [Application] : This kind of beads rack stainless steel ball inlaid in the retainer design. It's suitable for replacing the crank bearing of the bicycle. Suit for ordinary bicycles, mountain bikes, lowrider bikes, stretch bicycles.
• Attention: [Notice] : Before purchasing, please confirm whether the size of the accessories of your bike is matched with this bearing cages.

Description: This kind of ball bearing is with 20 stainless steel ball inlaid in the retainer design. It can be a better replacement for the mid axle axis bearing of racing bicycle or mountain bike. 10 pieces included in this package. Specification: Color: Silver Tone Material: Stainless Steel Ball Number: 20 Ball Diameter: 4mm/0.16" Outer Diameter: 40mm/1.57" Inner Diameter: 33.5mm/1.32" Dimension: 4.6x40mm / 0.18"x1.57"(H*D) Notes: The size of this product is very important, please check it carefully before purchasing. Please allow 1-2mm differs due to manual measurement, thanks. Package Included: 10 x Bicycle Ball Bearings