Beefy Bottom Bracket Set For One Piece Crank Bikes 1.69 Inch Cup 43mm OD Steel Frame Cups 9-Piece Kit With Ball Retainers, Right And Left Threaded Cups, Fits Mountain Bikes And Beach Cruisers, Black Or Chrome

One-Piece Crank Bottom Bracket 43mm Cup 9-Piece Kit
✔️ 9-piece steel bottom bracket cups, right and left threaded, for bikes

This bottom bracket cup set is designed for one-piece crank bicycles, featuring a 43 mm outer diameter cup (1.69 inches) and a complete 9-piece kit with ball retainers. It fits most beach cruisers, lowrider, and chopper frames. Measure your bottom bracket shell diameter before purchasing.

✅ Cup size: 43 mm OD (1.69 in) per cup
✅ Right-threaded cup: 13/16 in × 24; Left-threaded cup: 3/4 in × 24
✅ Material: steel; includes ball retainers
✅ Color options: Chrome or Black
✅ Fits most beach cruiser, lowrider, and chopper bike frames

💡 What is a bottom bracket cup set used for in bicycles?

A handy component that keeps the crank turning smoothly by housing the bearings in the cups.

• Helps maintain smooth rotation and supports one-piece crank assemblies
• Includes right- and left-threaded cups to match common frames
• 9-piece kit with ball retainers for easy installation
• Color options Chrome or Black to match bike style