Removing and Installing Mid Bottom Brackets BMX- Step by Step
ฝัง
- เผยแพร่เมื่อ 7 ก.ย. 2024
- I've done an upgraded video for installing bottom brackets. you can check that out here- • Complete Guide to BMX ...
If you're in the market for a 19mm Mid Bottom Bracket, I recommend- amzn.to/3YYsBXU
or a 22mm Mid Bottom Bracket? - amzn.to/40iPtTj
This video will show you how I remove and install a BMX Mid Bottom Bracket Without a Cup Press/ bearing press or a bench vise.
If you have access to a bench vise. I suggest you watch the "Bottom Bracket Bench Vise installation video" and see if that is the best way for you
Bench Vise BB Install - • Installing a BMX Mid B...
If you have to remove the crank first, I suggest you watch the "Removing and Installing 3-piece Cranks and Sprockets Video" first- • Removing and Installin...
If you have questions or requests for future videos, comment below or message me at rob@basementbikeshop.com.
Music By- Niss Beats
My mission is to keep more bicycle riders in the sport.
Whether you can't afford to take it to a shop,
you don't have a way to transport it to the shop,
you don't have time to take it in for repairs,
or you just want to learn to fix, repair, and upgrade your own bike,
I will help to keep your bike running smooth and you riding longer.
The Basement Bike Shop TH-cam Channel - / @thebasementbikeshop2336
![Warhammer 40k: Space Marine 2 | เพื่อจักรพรรดิ ! [ตอนเดียวจบ]](http://i.ytimg.com/vi/4M0ckYMA4-U/mqdefault.jpg)
![[Re:all TREASURE] EP.6 in 방콕ㅣ🚩 쩡캠의 방콕 투어 빵 마이 와이 👍](http://i.ytimg.com/vi/uyFw-nItA_s/mqdefault.jpg)
Notice how he edits out @ 1:14? He ruined the existing bottom bracket and rather than show that just says that he preferes to replace them if he "feels it has been compromised." It is almost impossible to not ruin a bottom bracket if you choose to use the center sleeve. I recommend not using the center sleeve if you ever want to replace bearings without ruining the rest of the bottom bracket. It just really ticks me off how every time someone makes a mistake, they edit it out. That was the most crucial and hardest step in the video and he edited it out rendering this video not "step by step."
Just a(nother) hint for the installation. You can also use an threaded bolt min. 8mm diameter and 2 big washers, best same size as the bearings. Softly hammer the bearings a bit in so you don't have to hold them like seen in the vid. Don't forget the spacer! Put the bolt through the bearings and frame like the spindle, washers on and then screw them in slowly. You need also 2 screw nuts obviously. :)
That is a great idea! I should making my own Bearing Press. Thanks!
You can use a socket that's the same size as the outer steel ring of the race hit with a rubber or copper or leather or wooden mallet. The big vice method rocks.
It's a good idea to tape up the tang on those files, or get handles or I turn em round so tang away from wrists, and or file in a manner where the point is not able to engage with your wrists if you slip off the item your fileing
For anyone without a big vice just get a big nut an bolt with big washers if the bearing starts straight it tends to continue straight.
mild steel bar is good as a drift as it damages before hardened bearings.
Putting a larger tube over the spacer tube gives you a straight line to scribe to.
Best to all,
This is very helpful thank you 🙏🏽
Can you just use the same center spacer that was already in the bike or you have to cut the new one down
Depends if its too short or too long for the new bike. I have a big spacer and about 3 small spacers in mine. Whatever fits right works!
I have a mid bb and my spacer won’t move at all so I can’t punch out the bearings
Love the idea of putting fork handlebar and seat for smashing these throught !! Will take your advice for sure because without stand if you dont want to scratch thw whole new frame. Thanks
Thanks! I did learn this the hard way as a teenager. I scratched up brand new frames. I have even bent brand new framed. I still do it this way today, even though i own a repair stand now.
@@thebasementbikeshop2336 Thanks for the head up i will take these as another tips :p :D
Super vid! Helped me alot. Big THX!
yeah this sealed bottom brackets bearings are not budging
So when installing a new bottom bracket, the center spacer should be a bit loose in between the bearings after they’re installed? I measured my new spacer to the old one and they’re the same size but I don’t remember the old one being loose like that in between the bearings.
No. It should be tight. If the spacer is a bit loose, when you tighten the crank arms down it will put pressure on the bearings and they won't spin right.
What bearing size did he used?
Thank you 🙏
ok, that is how I do it..l.learned sleeve sizing technique, thanks,
Do you order seal bearings in bulk?
Lol. No. I usually order new bearing if i get a new frame just in case.
Im trying trying change out my lodged barings at the end of winter in my state. If their frozen and rusted on. Would it help to take a blow torch an lightly heat up the baring and surrounding area. Would the loosen up the old frozen grease?
i would try a Penetrating lube like "PB Blaster" first. let it soak a few hours or overnight. then try again. I hope this helps let me know if it works.
I can't even get on a lip at all what about my problem?
Having trouble with part 1
How hard to I need to hit it? I tried for about a minute and it wouldnt budge, not sure if I'm hitting it hard enough
You could try spraying a PB Blaster or a different penetrating lube in between the bearing and frame and waiting a bit. I, personally, am impatient and would beat them harder and end up replacing the bearings.
how do i know what size mid bb kit i should buy i think its 19 do i just measure the baring ?
Measure the diameter of the spindle or the inside diameter of the bearing
@@thebasementbikeshop2336 cool thanks i ended up doing that with a digital caliper was 19mm just like i thought but now i can buy the parts i need and not worry about something not fitting lol
What size is your bearing?
Do i have to take this barring out to paint or clear coat my frame?
Tape em off if you leave em in so paint doesn't gunk up in them
My bmx have american bottom bracket and the cup that pressed in won't come out eventho I used all my force. What should I do ? That bike is very old about 20 years +
Try spraying the cups with a penetrating oil like pb blaster and let it sit. Then Try again. I hope this helps.
It still didnt come out my bike is very old probably the bottom bracket cup stuck with the bb shell maybe welded ? No movement even tho i used penetrating oil.
@@aslams5250 wow! I ready am stumped then. That usually works for me. I'll talk to some bike restorers and see if they have any ideas
Hi I'm sorry bcoz it finally came out!! I used to punch it by myself but then I tell my dad to punch it bcoz it very stuck. My dad punch it very hard and it came out. I thought it was stuck or welded but its not. Maybe I dont have some energy lol and also I'm still teenager. I'm very happy rn cause I just change my bmx crank from 1 piece to 3 piece about 2 hour ago :D :D. sorry for bad english btw 🙏🏻🙏🏻
No problem. I'm glad you got it.
So i have a mid bottome bracket and want to chage the size of the spindle will any size bering fit a mid as long as its a mid
No, you will need specific sized bearings to fit your spindle. If your spindle is 19mm, you will need 19mm Mid BB bearings. If your spindle is 22mm, you will need 22mm Mid BB bearings.
When changing out chainrings, they usually come with a spacer that will help a 22mm chainring fit a 19mm spindle just fine. The dame cannot be said for bearings (at least I have not heard of anyone doing that).
Hope this helps!
@@ArmeeDerTristen93 so can i use any size berings on my mid bottom bracket frame as long as its a mid bottom bracket type berring
@@erickmora467 as long as it’s the same size as the spindle, you can. I’m about to swap out the bearings on mine in a couple minutes.
@@ArmeeDerTristen93 thanks also do most cranks come with a bottom bracket
The guy has not stop taliking and dosent seem to be stoping soon
JESUS CHRIST LOVES YOU SO MUCH!!!!
Amen
JESUS CHRIST IS THE WAY THE TRUTH AND THE LIFE!!! John 14:6
Doesnt work.
Have the bearings been in a long time? Try spraying some wd-40 or something similar in between the frame and bearing and let it sit for an hour. Then try again. Worst case scenario, you will have to beat the bearing pretty hard and destroy them and replace them.
@@thebasementbikeshop2336 Yeah I did it again with wd40 and it won't worked thank you
@@bmxwithchris go to a bike shop.
@@ridebmx1983 i mean like thanks but it was one yea ago😂
@@bmxwithchris i thought you are still struggeling getting it out. 🤣