How To Remove And Install A BMX Bottom Bracket
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- Опубликовано: 1 мар 2016
- So this is the first how to video for our channel and will hopefully be the first of many! We hope this has helped you guys gain a better understanding of how a mid bottom bracket goes together and hopefully has given you the confidence to have a crack at replacing your own next time :)
If you have any questions about this video, feel free to leave a comment below and we'll get back to you asap! Also if you have any suggestions for future how to videos be sure to let us know in the comments :) Apologies for the late upload!!
Be sure to like, comment, subscribe and share our videos if you enjoy what we're doing!! Thanks for all the support guys :) Next video will be up tomorrow!
Enjoy!
Reading these comments makes me feel like a bike mechanic
Omg true btw nice pfp
can you send me that piece of wood
use a book dumbass
I left one just like it for you in the forest! Oh wait, it's 2024 and there's a boring new housing complex there containing men that dont do anything in their garages. Bummer.
Lol "lightly tap them out" proceeds to beat the crap out of them
Best tutorial i've seen, nothing fancy just some common tools and a block of wood aha.
Simple is the best haha Cheers!!
You prolly dont give a shit but does anyone know of a method to get back into an Instagram account..?
I somehow lost my password. I love any assistance you can give me
@Aryan Maurice Instablaster :)
@Eric Luis thanks so much for your reply. I got to the site thru google and Im in the hacking process atm.
Takes quite some time so I will get back to you later with my results.
@Eric Luis it did the trick and I actually got access to my account again. I am so happy!
Thanks so much, you saved my ass !
This is the best tutorial on sealed bearing bb. It even taught me how to convert from unsealed to sealed! Keep up the videos!
Thanks!! Glad you found it useful :)
will u need new cups to go from sealed to unsealed
I had been hammering away at my bearings on and off for days i watched this vid and it's helped loads, hitting it gently around the edge easeing it out worked for me, thanks m8 😊
Good explanation. I havnt done this in decades now my sons bike needs it. So a big 👍 for your advice
You're a king. Just building up a new frame and I see this vid.
Thank you very much for putting this video together. The information was very easy to understand and the production quality was great for an instructional video.
Bro you are awesome not only do I know what bottom brackets are, but also now I know how to put them on myself. Thank you. Keep up the good work.
Do the sealed bearings ever wear out from use? Can you grease them up? Or do you need to replace them sometimes?
how are yours so easy to take off I have repeated that same step like 80 times and they still don't come off
Asapbmx What bit are you having trouble with? Getting the two bearings out?
+Southern Bmx Films yea my bearingsn don't come off
Asapbmx They sound pretty stuck in there.. I would try spraying some WD40 on them and then bash them out!
ill try that
already bash for about 1.5h，after spray some wd-40, I still can't remove the old mid bb, any suggestions?
What does the spindle or metal tube do in middle of the bottom bracket? Do I need it for 3 pieces crank set?
Awesome, first how too, you explained it really well :) keep it up
+Mtb Hamish Thanks Hamish :) We really appreciate all your comments and support!!! Also really enjoyed your video out at the Tolosa Dirt Jumps :)
Are all the bearing for the bottom bracket the same sizes I want to use a different frame
Thanks so much! I have to rebuild my son's crank set. This was very helpful.
Really helpful, great stuff 👍🏻
Thanks a lot this was really informative!
Appreciate the heads up on pressing the bearings
Nice one , just to say that your the first person to say about the length of the spacer in the bottom bracket thanks mate.
Yeah but 1mm too long is better than 1mm too short
I've been trying to install my bb bearings but they don't want to go in, any thing I can do to get them in?
Real good video, thanks!
Ha thanks man I couldn't hit the big set because it was really windy and I didn't want to swipe to the side and crash and I'm glad u like it
“You need to get in the habit of gently taking things out” not even a minute later: 4:50
Time lapse
How do you know what size BB fits your frame? I don't know if I should buy a 19mm or a 22mm BB
One way to find out is to look at the specs of your bike online and looking for your spindle diameter there, but if you can't find it online your best bet would be to take your bike into your local bike shop and they should be able to tell you straight away :) What bike do you have?
Or you could learn how to use a ruller? Just measure the inside diameter of the bush bearing. Pretty easy to see a difference between 19mm and 22mm with it.
Thanks, I was hoping to see how much to tighten the axle against the bearings, how tight is too tight ?!
What size do you have if I get a 19 mm one would it work
thanks for upload! I was able to fix my kink frame
Jimmy Payne No worries! Glad it helped :)
Much appreciated!
Do u just lay the spacer in or does it need to in a specific place between the bearings?
Just put it in between the bearings, then when you put your cranks back on, the spindle will slide through the tube spacer and it should be good to go :) Let us know if you have any troubles!
Should you allways have spacers on the bottom bracket/ cranks, i currently have none and the chain keeps going loose
Jimbo 35637 The bottom bracket spacers shouldn't have anything to do with your wheel coming loose. It's personal preference if you run the big cylinder spacer but you will need to run spacers on the outside to make sure your cranks don't hit the frame :)
hi friend,from usa here,whats the point of the spacer?ive taken plenty bikes apart,never seen or used a spacer,bikes like 87 gt performer,87 dyno detours,88elf pro,87gt freestyle,94elf xl.
I also notice the bearing u put in look like actual bearings,the ones I ever seen have a flange as if there was no space plate inside it will stop at the determined point regarless,is this why u need a spacer?i can just be outdated since im old school, TY!
hi mate too vid ,I just bought a 2009 giant STP andbi came with 3 price bmx cranks but no bottom bracket so is useless! my question is if on the frame is threaded can I install a bmx bottom bracket?
So technically speaking you can't install a mid bottom bracket because it isn't threaded. Im not 100% sure but I think what you will need is a bottom bracket that is threaded but has an inner diameter of either 19 or 22mm to fit your 3 piece bmx cranks!
Is Savage a good company for bottom bracket kits
Awesome vid!
Question: Does anyone know if the "cups" already on the frame in this video (specifically) made for holding sealed-type bearings? Or can sealed bearings go straight into the stock cups that come on an oldschool (80s) bmx bike?
you need cups designed for the sealed bearings, round cups for balls are not compatible.
Thank you this was very helpful my man
I have a older Gt from like 2002 and it is starting to creak and I want to swap sealed barings so want size bearings do I need to get
A GT bmx or mountain bike?
Would I️ be able to put a sealed bottom bracket in if my name came with an unsealed one and if so how can I️ find out what size I️ need?
Hello what size bottom bracket are You using
Do we need to put a little grease on the outside face of the bearing install and before putting the cranks on?
Yea
Will any size bearings work?
Cheers man 😁
I have a question about my BMX bike is there any way for a bottom bracket I have one that has just a regular unseled bearings and I was wondering if those anyway I could switch those out with sealed bearings or I would have to get a new bike frame. ???
Good question! I'm pretty sure that you can't because the frame is machined to hold unsealed bearings instead of a cased, mid sealed bearing. I could be wrong but I'm pretty sure you can't!
You can easily, I have primo hollowbites on my 15 year old mirraco. All u need to do is get new cranks and sealed american bb bearings.
Matthew Abt Is the American BB the one that is incased in a second housing?
hey thank you for the video i have a question tho if i need to order a new set. what is one way to tell what size bearings i would need
trying to order some online
What frame and cranks do you currently have? I'll see if I can find out what you need :) Thanks for the comment too! Glad you found the video useful :)
Southern Bmx Films. its a free agent stile. is blue it has lion on it the bearings on it is small probably the size of a 50-cent piece
all i have is mountain bike shops around me they all look at me like I'm crazy for walking in asking questions about a BMX but any suggestion help thank you
I've just had a look then online and i can't find anything conclusive and I don't want to make assumptions and lead you in the wrong direction!! Best bet would be to take it to a bike shop so they can physically pull out the bearings and find an exact replacement! Sorry I couldn't be of more help!!
lol word thx anyways. good videos👍👍
Thanks - this was helpful!
No worries!!
just got some stevie churchurchil cranks. they come with 24mm BB. i'm just wondering will that fit in my frame?
They should do :) 24mm is the measurement of the inner hole in the bearing, where the crank spindle goes through. The outside size of the bearing will still be a mid sized bearing and should fit your frame :)
thanks lad
No worries!
I have a wethepeople frame could i take a subrosa crank and put it on my wethepeople frame
interesting. on skateboards we put lube to the inside of the cover, where the small balls are spinning. we dont take off the cover, we just clean it with a basic citrus cleaner and then drop some lubricant onto the cover, it goes in after spinning. as i can see, on bmx bikes you dont do this, you only lubricate the outside and the inside frame of the bearing. am i right?
Does my spindle have to fit in the bottom bracket have to fit snugly
I think the spacer in mine has seized up, it won't move and there's no lip to hit out the bearings, any tips?
So I just bought this really bad Mafia bike second hand that has a clunking/skipping noise whenever I pedal I only bought it as a little project but I’m not sure if it’s the bottom bracket or the spindle 🤷♂️
when i pedal i have a gap in my pedal , anyway to fix that ?
Once you’ve pressed the bearings in, should the bearings run smooth by hand? I’ve pressed my bearings in and when I try to turn them they are very grindy, almost like they are to tight?
I’m trying to work out what the noise is from my bmx. The chain could be the issue as running a new chain on an old freewheel. It’s crunchy/clunky when I put pressure on the pedals and pedal.
please respond to my comment lmao, have you figured out what the problem was because I’m having the same problem rn and I’m not exactly sure how to fix it
@@mbvjg4217 it turned out the chain ring and cassette wer used to the old chain and when i put a new one on it was not locating correctly over each spikey bit causing grinding crunchy noises. So I used the old chain. Or just buy new chain ring and cassettes/freewheel
my bottom bracket is always loose. my cranks are tight. my bearing are I think a hair small. do u have a fix for this.
Is it that the bearings are loose in the frame or does the spindle move slightly when it is pushed through the bearings?
No answer 3 years later
Thanks for help out 🅰️🅿️💯
Well that was easy socket extension and a knocking stick worked wonders and if they go in as easy as they came out WINNER
my BB hs dirt in it. any tips to keep dirt away from the bottom bracket? since dirt has got in it's making a creaking noise
Makes sure you run the bottom bracket dust covers :)
nice video thanks
Thanks man! Appreciate it :)
hey man so i was installing my bottom bracket but the spacer was a bit short and i couldnt find any other little spacers.is there a problem if i ride like that?
Nah there shouldn't be any major dramas with riding it like that!
thanks bro
I'm working on same thing , just bought a eastern for 50 bucks , has 19mm BB, but American cups that hold it in to the frame shell, used a rounded extension to knock out , but bearing was stuck to cup , so the whole thing came out , bearings made lotta noise and hard to pedal, and was told that it needed bearings , but also on disassembly I noticed the chainring side didn't have cone spacer, just regular spacers, so maybe that was the issue the whole time , those thin spacers rubbing straight on bearing ?? Idk , I'll get a 19 mm odyssey or kink kit with cone spacers , replace everything except original middle spacer that spindle rides on , cuz it's already perfect size, reuse old cups , should be good to go, and possibly it was needing a cone , so old bearings might still be good , I'll save them , why not lol
my frames headtube is a bit deformed and i might be replacing it soon but... i didnt grease the bearings much... i hope they arent stuck in there
Hey man that's a nice frame u got there
Thanks man!!
What kind of grease are you using to put the bearing in?
I just went to my local bike shop and got that container ages ago! Cant quite remember exactly what it is! Honestly you could probably get away with any grease haha Maybe even Vasoline...
Southern Bmx Films ok😂 thanks
Hey, I was looking at getting the odessey thunderbolt cranks but my bb is 19mm will they work still fit. Essentially I want to know if the cranks will fit 22bb and 19bb or if they will only work with 22?
Hayden Califf if the thunderbolts have a 19mm spindle they will fit a 19mm bb the size of the bb is relative to the cranks and the type of bb (mid, euro etc) is relative to the frame
Hayden Califf I personally think there disgusting anyway
Thanks
Ya I just got them you have to have the same size bb and spindle but all bb fit your bike. Maybe not mtb to BMx
Hayden Califf mid bb right?
Thanks😀
No worries!
Can someone help me? My bottom bracket is actually pretty much stuck. Idk why but when I took my cranks off and looked inside where the brackets are, there is nothing to hit out. It's completely flat. No edges or nothing. It's like they didn't want you to take them out or something. It's annoying because I've seen pretty much every RUclips video where they just put a screwdriver on the edge of the other bracket so they can pop it out. But I ain't got nothing to pop out.. any suggestions?
How to know what size bearing you need for your bottom bracket?
My bearings are stuck, i tried your tips im scared to mess them up even though im trying to put a motor on, i feel like ill need to acrew driver punch them which will mess them up i tried adding copious amounts of wd40
A good hint is to put bearing in freezer for an HR metal contracts all my mates to it saves a lot of hammering if you have a rough bearing seat ;-)
I LOVE how he said the spacer lives in between the bearings haha
haha right?..thats exactly what it does too!it lives right there in the BB,an unsung hero!
Never Getting out to see the light he just works quietly NEVER COMPLAINS hahaha he is unsung hero !!!! haha
"for hes a jolly good FELLOW,for hes a jolly good FELLOW!!......."...."RAISE YOURE STIENS MY SONS AND LET US PRAISE THE MIGHTY BB SPACER,FOR HE,IS A TRUE GENTELMAN AND SCHOLAR!LETS US STRIVE TO BE LIKE HIM!
Now he has been sung for and his Heroism has been Claimed for he is now our one true hero !!!!!
What's the difference between car grease and bike grease? I would've thought they were the same
I’ve just installed mine and after assembling the cranks that part got a little stiff, hard when pedaling. It seems like there’s pressure. Any repair suggestions?
same!!!!
What size is yours because I very sure mine is the same but I don't know either 19mm or 22mm😩
The one in this video was a 22mm mid bottom bracket, what kind of bike do you have mate?
Do i need a new bottom bracket if my cranks are sjipping and popping when i pedal?
Yeah and that cranking noise can be your chain or your cassette/freewheel
“You’re gonna wanna be extra carful when hammering them out, you don’t wanna damage the bearings if your gonna reuse them”
4:53
*processed to aggressively tap bearings out*
I stopped the video at 5:00 and went and tried what to did and instantly ran back to my phone to hit the like button
very good deatiled video thanks!
No worries :)
Could i use a car bearing press? Theoretically
Thomas Ryan If it fits then theoretically, yes :)
How do you actually take the spindle out the crank arms slide on to?
hell hectic bmx Depends if you have 2 piece, 2.5 piece or 3 piece cranks. With 2 piece you can't take one crank arm off the spindle. With 2.5 and 3 piece you should just be able to loosen all bolts and smack the spindle out.
Oh okay I'm pretty sure I've got a 3 piece crank
hell hectic bmx You should be able to loosen off all bolts and tap out the spindle then :)
HOW do u switch from unsealed bottom bracket to sealed bottom bracket
This is the best tutorial I've ever seen!
S T R A T U H Thanks mate! Glad we could help :)
Does bearing has a size?
Do u know what size is a free agent trail bike size 19 or 22
I had a bit of a look online and it seems that the Free Agent Trail bmx has one piece cranks and instead of a mid bottom bracket, it has a classic open bearing bottom bracket. I'm not 100% sure as to whether the older open bearing bottom brackets run in 19 or 22mm or whether they have their own special size. The best thing to do would be to take it to your local bike shop and let them have a look at it and they should be able to determine what kind of replacement bearings you need! Sorry that I couldn't give you a more definitive answer!!
What is the size of it of the bearing
Did you change the bearings new and which grease is used
Any grease you can use threadlock if bb shell is loose
Hello ! How did you previously remove the axle/spindle ??
Take off one crank arm (usually the non-drive side is easier).
And then you can use the wood and hammer method to knock the spindle out
Just wondering I've had a lot of trouble with my cranks being really lose. I've tried heaps to tighten them but it never works. The reason why I need them tight is so I can land a trick. I heard if you remove the spacer in the bottom bracket it won't move much but is that bad for the bottom bracket? And will it ruin it?
Yeah that's true! If you remove the tube spacer it will make it that your cranks will barely move. It won't 'ruin' the bottom bracket but it will mean that your bearings won't last anywhere near as long as they normally would. You could try running a super tight chain which would slow down your cranks :)
joe whyte there’s probably not enough crank spacers on the spindle
I wish my frame had a "mid" bottom bracket shell like that. However, it was made in the late 1990s or early 2000s before those were a thing, so it has an "American" bottom bracket so I have to deal with bearing cups.
SE bike literally makes their bb’s so stuck in there, the first time I removed the factory bearings took me hours to get them out, I just replaced an after market set and it took me like 10 mins for both
How will you know if you need to use the little parts for the space
You'll use the little parts if the big spacer doesn't cover the distance between the little bearing flanges that are machined into your frame.
What is the bearing size?
where did you buy those bearings. please tell me i need them asa
SouthWest Bmx Bought them from an online bike shop in Australia. It's a Mutiny Mid BB. What country do you live in?
SouthWest Bmx, Amazon.com sells them
SouthWest Bmx just search bmx bearings and Eastern berrings should come in your search. Amazon
Jimmy Payne That'll do it!
I was trying to get out my bottom bracket 20min just on right side I still need to get left out
is that the BSD passenger frame ? if it is what size is the bottom bracket ?
+John Mcswerney Nah it was a Mutiny Rune. The BSD Passenger frames have a mid sized bottom bracket.
+Southern Bmx Films thanks man
My spindle is literally seized inside the BB. How tf do I get it out
Jesus man. I would spray a fuck ton of wd40 and grease in there and hammer the fuck outta the spindle. You’re gonna have to buy everything new anyways 😂
Mine just don't move at all. I've tried wood and metal and hitting soft and hard and they just don't budge at all
What is a size of bearing
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