Bottom Bracket Standards on Road Bikes and Mountain Bikes

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1. I got every thing up untill the part where you started talking about the bottom brackets
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3. Thanks for the help! even after years of cycling.....still in the dark as to the standards. thank you!
4. Excellent video! Thanks
5. ok I think I lost my BB's somewhere back @ 3:00 lol I'd have to write this down to get a grip about the product #'s
   but at least I know I can install a 91mm crank in my 29er MTNB
6. hello i have a question. i have a 73mm 113mm square tapered shell for the moment on my rocky mountain bike. I bought a new frame but the bb length is 68 mm. What size bb should i buy? 68mm 113mm or will the 5 mm less of the frame change the size of the bb?
7. I am sorry.You complicated the matter to the point as if you are speaking about a jet engine.
   Dislike.
8. I got two words for you: SQUARE TAPER!! Super strong and a lot more durable than these shit bottom brackets and crank sets. I've always used it for any of my bikes and I've never had a problem. Heck, when I switched both my road bike and single speed frames I was able to transfer both the bottom bracket and crank set with no problems whatsoever! 12 years and counting for the road bike cranks and 8 years for the single speed. Still works like a charm. #SquareTaper4Life
9. very good explanation
10. Mine is there.. :( mine has threads to screw in the bracket.. Perhaps it's cheap bike 😒
11. He keeps smacking in between statements, am I the only one irritated by that? Good info but I'm distracted from it by the nervous smacking. I feel like a jerk for noticing that.
12. it used to be a slippery seat post blues..... I got that with my new top of the line bike and 2 weeks later it was the newer version - the BB30 bottom bracket blues. Constant maintenance, re-greasing, the whiff of rain and it start creaking. Installing new bearings to see if that helps - if not it's off to 24mm adapter and new cranks.
13. Awesome video!
14. VERY helpful, cheers !! 
15. I hate it when companies just decide to change the industry standards into something of their own. seriously there is nothing wrong with the Italian/English BB's and it was so simple to change them and service them, but they always find a way to spoil the classic simplicity of things.
16. Very good video, thanks.
17. nice frame you got there!
18. Thank  you, that set the record straight. Perhaps the proliferation of these standards -- a term that's becoming more of a misnomer with each new spec -- may comprise the point where increased complexity intersects diminishing returns for the end user.
    
    Been riding and servicing BSA BB's for decades -- if it ain't broke don't fix it. But, of course, all these new BB designs have more to do with the amenities of manufacturers than riders.
19. so if i got an ES-25 OCTALINK on my Scott Aspect MTBike 29er and i want  to up grade a cranckset waht will be BB86/91 or PF30 internal cup i kind of confuse here, any help welcome