What is a BB on a bike?

Related questions

1. What is boost crank spacing?
2. What is bb30 crankset?
3. Do I need spacers on my bottom bracket?
4. What crank arm length do I need?
5. What is the difference between pf30 and bb30?
6. How does crank length affect power?
7. How is BB width measured?
8. What is the thread size of a bicycle pedal?
9. What size are boost hubs?
10. What is a bb386 bottom bracket?

Tags

1. #attaches
2. #bicycle
3. #allows
4. #cranks
5. #connects
6. #hanger
7. #allow
8. #rotate
9. #american
10. #spindle
11. #bracket
12. #contains
13. #crankset
14. #bearings
15. #bottom
16. #chainset
17. #freely