12 Pack Bicycle Ball Bearing Cages With 9 Balls Each, 29.5mm Outer Diameter, 19mm Inner Diameter, Crank Bearings Mid Axle Wheel Retainers, Durable Steel Bearings for Bicycle Maintenance
✔️ Outer dia 29.5mm (1.16"), inner dia 19mm (0.75"), 12-pack with 9 balls
These bicycle ball bearing cages (retainers) hold 9 steel balls and are designed to replace crank bearings on bikes. Each cage has an outer diameter of 29.5 mm and an inner diameter of 19 mm. This 12-pack is ideal for maintenance across ordinary bikes, mountain bikes, lowrider bikes, and stretch bikes.
✅ 12-pack of bicycle ball bearing cages with 9 balls per cage
✅ Steel construction for durability and high strength
✅ Outer diameter 29.5mm (1.16"), inner diameter 19mm (0.75")
✅ Replacement crank bearings compatible with ordinary, mountain, lowrider, and stretch bikes
✅ Bead rack style stainless steel balls inlaid in the retainer design
💡 What is a bicycle ball bearing cage used for in crank maintenance?
It's handy for keeping crank bearings aligned during replacement and helps ensure smooth rotation.
- Crank bearing replacement for 19mm inner diameter head parts
- Steel cage with 9 balls provides durable crank assemblies
- 12-pack offers spare cages for multiple bikes
- Fits ordinary, mountain, lowrider, and stretch bikes