KHE US BB Tretlager S/B BMX Bottom Bracket - Integrated BMX Bearings | RideHub

The KHE US BB Tretlager S/B is a high-quality bottom bracket bearing set designed for BMX frames with a US BB (51.5mm) bottom bracket . Featuring integrated industrial bearings (S/B) , it ensures smooth operation and long life , eliminating the need for frequent maintenance.

Aluminum bearing cups and a set of six adjustment shims allow for precise fitment to 19mm cranks . A sprocket mounting adapter is also included, making this a complete solution for BMX riders .

Product features:

✔ Bottom bracket type: US BB (51.5mm)
✔ Bearings: Integrated industrial bearings (S/B) – maintenance-free
✔ Bottom bracket cups: Aluminum – lightweight and durable
✔ Axle diameter: 19mm
✔ Compatible sprockets: 8T, 48T
✔ Color: Black
✔ Weight: 244g
✔ Included:

• 2 x aluminum bearing cups
• 2 x industrial bearings
• 6 x adjustment washers
• 1 x sprocket adapter
• Complete assembly kit (13 parts)

For whom?

If you have a frame with a US BB and are looking for a maintenance-free, lightweight, and durable bottom bracket , the KHE US BB Tretlager S/B is the perfect choice. It's perfect for street, park, and dirt BMX.

The most important advantages:

✅ Maintenance-free industrial bearings – longer service life
✅ Light and durable construction – aluminum bottom bracket shells
✅ Complete set – 13 parts ready for assembly
✅ Precise fit thanks to adjustment washers
✅ Compatible with 19mm axles and 8T, 48T chainrings

🔥 Choose durability and reliability – KHE US BB Tretlager S/B for your BMX! 🚲🔥