Four Pack Bicycle Crank Bearing Retainer Set With 8mm Ball Bearings Five Sixteenth Inch And Nine Balls Each Replacement For Bottom Bracket Bike Parts Repair Kit Spare Set For Quick Maintenance And Smooth Pedaling

Four Pack Bike Crank Bearing Retainers for Smooth Pedaling
✔️ 4 Pack Steel Retainers 45mm OD 32mm ID 8mm Balls 9 per Set

This four pack of bicycle crank bearing retainers works great for bottom bracket repairs on mountain bikes and kids bikes to keep the crank spinning right.

✅ Steel material built tough for daily rides
✅ Holds nine 5/16 inch 8mm balls per retainer
✅ Outer diameter 1.77 inch 45mm inner diameter 1.26 inch 32mm
✅ Comes with four pieces for replacements and spares

💡 What is a bicycle crank bearing used for? These parts sit inside the bottom bracket to support the crank axle and cut down on friction during rides. - They work well for quick maintenance on low speed bikes and mountain bikes - The steel build stands up to regular pedaling without wearing out fast - Add a bit of oil before fitting to protect the balls and retainers - Check sizes first since the 45mm outer fits many standard crank setups