5-Pack 1/4 x 9 Bike Ball Bearing Retainer Set for Bottom Bracket & MTB Crank Repair

Forget the annoying creaks, grinding, and wobble that steal the joy from every ride. This 5-piece replacement set restores smooth pedaling fast, so your bike feels tight, quiet, and reliable again. Designed for riders who maintain their own bikes—or mechanics who want dependable spares—each retainer holds 9 precision 1/4" balls in a stable cage for cleaner, easier installs. If you’re rebuilding a crank or servicing a loose-ball bottom bracket, this bike ball bearing retainer kit is a simple upgrade with big results.

Key Features

• Pre-assembled 1/4" x 9-ball retainers for quick, mess-free bearing installs

• Helps reduce crank play, grinding, and friction for smoother pedaling

• Durable steel construction built for everyday riding and maintenance cycles

• 5 pieces included—ideal for multi-repairs or keeping spares on hand

Why Choose Our 5-Pack 1/4 x 9 Bike Ball Bearing Retainer Set for Bottom Bracket & MTB Crank Repair
Many loose bearings are easy to lose, uneven to pack, and time-consuming to reinstall. This bottom bracket bearing retainer design keeps the balls evenly spaced for more consistent performance and faster servicing. Compared to single replacements, a 5-pack gives better value and long-term readiness for future tune-ups.

Perfect For (Occasions & Uses)

• Bottom bracket rebuilds and crank servicing

• Mountain bikes, road bikes, commuter bikes using loose-ball setups

• Home mechanics, shop repairs, and emergency spare kits

Product Specs

• Ball size: 1/4" (6.3 mm)

• Ball count: 9 per retainer

• Approx. size: OD ~29 mm, ID ~17 mm

• Quantity: 5 retainers

Bring Back That Smooth Ride
Order today and feel the difference this bearing refresh makes—quiet spins, cleaner power, and a crank that feels solid again.