How To Install Cranks & Bottom Brackets - BMX
ฝัง
- เผยแพร่เมื่อ 6 ม.ค. 2021
- In today's Tech Thursday, the BMX Master, Phu Vu from EPIC BMX (@_epicbmx) gives us the walk through on:
How To remove a Bottom Bracket (BB)
How to Install a bottom bracket
how to install cranks
how to install pedals
how to install adapters
The cranks that were installed in this tutorial were the Stranger Mass cranks that come in 165mm with a 24mm oversized spindle. The sprocket was a stock Cult Crew, and the pedals were the demolition pc pedals.
#TechThursday #HowTo #InstallCranks
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Alf/Phu to Taiwan counter 1/8/2021 we at 289 likes. Need 5k!
We’ll have to bring you to document and transition us into the car world!
Tido oi tido....
never done anything bike related, like ever, bought a cheap entry level bmx a while back and slowly upgraded it, and honestly thanks to you! i just converted it from one piece crank to a 3-piece, and from american to mid 19mm. maaan thank you like a million!
The “floating spacer” is called a bottom bracket spacer, it’s actually there to prevent over-tightening the cranks and crushing the bearings. It also improves smoothness in the bearings overall in my experience. If it isnt the right size, you gotta add a spacer or buy a different sized spacer. It makes the bearings last longer too
Yes right to prevent over tighten the bolts
Which he did, cause the cranks don't spin at all at the end of the install.
How do I know what size I need ? I want two get new cranks on my but idk what size axle it is
@@angelsolano50it one size fits all
Nah really I didn’t know
I put the bearing in freezer then install and I also use old bearing to seat new one if not using again ! Thanks for the video ! I’m taking cranks off now !
Why in freezer?
@@3rdWorldNolait shrinks the medal making it smaller thus easier to slide it in. Once it heats back up it'll expand and fit nice and tight
This man's fantastic! Truthfully getting back into the hobby now vs the 90s has been eye opening... Came here believing I had a problem but turns out it's just how they are now...
7.27 am here at Malaysia.. nothing better watching this while having breakfast. great upload as always!!!
Same, from Malay too. Not many people here like bmx, sad
@@eezad4079 here at Sabah bmx started gaining popularity again... especially the OSbmx... regrettfully not many bicycle shop sell good and dated bmx parts... hopefully it will change soon
That’s awesome to hear :))
uwu dari malaysia juga 🙌🏻
Malaysian here, I do bmx.
Thanks to this page I’ve been able to work on all my bikes my kids bikes and friends bikes all SE bikes getting upgraded and maintenanced by me thanks Fredo & phu
Wow that’s so awesome to hear that! ☺️💜
Words of wisdom from a dad: "If you guys dont have tools like this, get a job where you can afford tools like this"
I love it!
Get a job at a bike shop so you don’t need to buy the tools at all
Thing is my pops never got that job🤔 thats why im here learning
Another awesome video guys, if you're looking for content ideas i would like to see if you can assemble an entire bike using only a bmx multi tool. Tx and keep up the great work.
We actually did something like that. Check out my, how to travel with your BMX, video :)
perfect timing on the video. im getting my new subrosa frame tomorrow!
The spacer works fine on my Cult frames and on my GT Fueler. It makes it so you can tighten your cranks without straining the bearing. That’s why Alf’s cranks are always loose.
Yeah i say use the spacer. Notice when phu tightened the crank in it put a bunch of resistance on it. I know alf dont run the spacer either. too much side weight as you said
Wow super star. Master mechanic. Thanks for all you do.
i love how you keep pressin fu on how hes doing stuff lol, it makes for better explanations and more entertaining video
Hahaha glad you caught that ☺️💜
ummmm. I am a diesel mech. I have bearing pullers. No bearing is technically reusable as they are consumable items unless unsealed and rebuildable, only "financially" reusable if you cant shell out the cash for a replacement. Another excellent instruction video, keep it up guys.
Damn that’s good to know!!
@@AlfredoMancuso LOL, I have to add something about the spacer which goes between the bearings on the bottom bracket. Not using it can create a concave pressure on the center bearing race when tightening the crank bolts. This can cause an inexperienced mechanic to over torque their assembly and lower the quality of the rider’s experience and longevity and durability of the bottom bracket. Anyways, keep kicking ass man. You are a huge role model to riders of all ages.
So that middle spacer is used to preload the bottom bracket bearings. In the past you can measure the bottom bracket shell width and measure both bearings and what you have left is the size of the middle spacer. You can also use the smaller spacer to put inside the frame as well and the BB will spin smooth as butter unlike what was shown here it’s not good for the bearings to spin like that at all.
Cheers!
Good luck if your trying to get the bearings out with that bb spacers lol
@@deadboy6666 it’s quite easy with a smaller flat head you can gently move middle spacer and press bearings out no problem 👍
I had my new bike (Cannondale) that tight from the factory and in 1-2 days it started making cracking noises, I think that is too tight too, and feels hard to pedal.
“If you have a dad “ that shit got me rolling 😂😂😂😂😂 thinking about getting some rant cranks pretty good info
Thank you so much for this i just about to do this on my bmx that I am fixing up
Stoked to be able to help :)
My metal piece on my bottom bracket is definitely in there ...never had a problem with it it is absolutely crank flips with it in there also lol now I got to learn how to do it now lol 😂
Thanks for this!
Thanks so much for your advice.you have helped me so much 😎🍺
That really help me to install bb
Tnx for video mr alf😁😁
Our pleasure Jasper
Great video as always bro💜👍🏻🙂
🙏🏻🙏🏻🙏🏻
“Thats why when I pass gas you guys can’t hear it.” Best line of the instructional.
Just replaced my cranks, thanks Alf, Phu.
“That’s why I made this”
I want a Phu branded rail road spike too!!! 😂😂😂
just right in time alf i'm about to install my new BB 'coz the bearing isn't working well or it stuck thanks for this..
I knew it!!
You’re a good teacher
Someday I wanna visit this shop!
I wish i could work in a bmx shop like this kool store great channel
Thanks so much!! The Vus are awesome!
Those spacers can be used inside the BB for the floating washer as well
That probably answers their “why are they chromed” question :)
Alfredo please make a whole video about how to build everything in a bike and braking down every part and what it does
Roger that!
I really like the shirt fu has on. I was in prison for a few years, I also have good bbs in my bmxs. I work in a mess like fu as well, I would like to clean up my act.
There’s no way this video will get five thousand likes.
Subrosa Jersey is fire
Lol 0
Happy thursday bro. Phu reminds me of the dad from initial d. Anime drift comic
Bunta
your shop is dope
Make your own bearing press for a few dollars any hardware store. 30cm bolt, 2 big washers, 2 big rubber washers to stop scratches, and a large ring nut. Thats it
I have a super long 3/8 drive extension specifically for removing bottom bracket bearings.
You shoud put that spacer inside the bb shell 🐚. Sometimes I'll even wrap a little note around it to discover later on. 😮
Bb bearing press is awesome.
Makes life super easy!
lets admit it we are all simps for Phu
I have a question do you need an Crank installation toll to install cranks?
Caus i´ve put my cranks on without this tool and it works perfectly!
Technically you don’t, but it does make it easier and you don’t have to damage your cranks by banging on them
Really need advice on how to fog a spline drive sprocket on 😄😄 it’s driving me nuts ! As it won’t go on !!
I don't have that spiffy tool to push in bearings so i used a c clamp
Oh we need to make sure the clearance between crank and the chainstay is equal bcoz my right crank is closer to chainstay compared to my left crank 😅 im gonna adjust my crank later 👌🏻
Very important! If you don’t center your spindle right you could have one crank arm not be fully on and warp it!
this guy is awesome haha
Yeah 2x4 to press the bearing in That’s how we did it in the 90s
hey Alf can you teach us how to fix creaking bmx cranks ?
Good vid. Slam that bike down at the end of the vid hahah🤔🤣🤣🤣 that’s how I expect my guys at the local bike shops to do too hahah
Hahaha gotta make sure it’s solid
I just got a new bmx 2 days ago
Whatcha get?
Fitbike
The bmx fitbike
Hey phu you can actually make a bb press using washers and a threaded rod from the hardware store
Yup, I did this on my recent build.
Pinning your comment for your ingenuity!
You guys are rad!
Been doing this for time. Shout out Matt Wilhelm for the trick.
Yea seen the video too
Rubber mallet works excellent 🤙
The best to keep that bike looking and running nice haha
@@AlfredoMancuso yup 👍
Theres a reason for the spacer. But I still respect your knowledge..
lol haven't even watched the vid yet, I installed new cranks and bb yesterday and im scarred to see what I did wrong😳😂
Ruhhh rohhhh haha
I'll always remember left side look for the mark or indicator lmao 🤣
8:00 Isn't that part of the frame machined before it's welded? Even if the tolerances are off, can't you just use the same spacers on the inside too? Also, if the bearings have nothing to tighten against, won't they just become loose inside the frame over time?
Just use corect spacer. But there is a ridge inside
what it do baby!!!
Do I need to use that crank tool on 2 piece cranks? Thunderbolt cranks? I keep hearing a raddle somewhere down there and it’s driving me insane
I remember you having short hair when you told you’re probably gonna make the planetary hub breakdown video. Feels like ages now🤣
Hahaha the first video didn’t do as well as we had hoped 😔
Can the BB spacers also be used to line up the sprocket with the driver in the rear, so the chain is in a straight line or as close to straight as possible?
Ye
How do I find out what size bottom bracket I need? I bought a crew defender from city grounds and would like to add a bigger chain ring but I can't figure out what size chainring I need
I used a railroad spike to get my bb out of my old frame to put it in my Sleeper. It works great
Don't use old bearings in new frames. You can stretch and warp shit. New headset and bb every frame that's brand new. Should also replace with brand new bearings every time but meh.
@@bmxriderforlife1234 I'm not a very hard rider especially back on the old frame. It was more I just grew out of it. The "old" bearings were still perfectly fine
@@squeezablemayonnaise8904 rewatch this video. Notice phu talks about cleaning.
And the loose bottom bracket shell?
Its not from weight its from bbs being replaced and using already installed bearings makes this worse. Why in the old days bb cups and headset cups often stayed with frames.
@@bmxriderforlife1234 I cleaned it and took great care of it. Im telling you dude the bb was almost new. I was young when I got the bike and didn't start riding hard until later and that's when I got the frame. It went in perfectly fine and I gurantee you 100% both the frame and bb are perfectly fine.
@@squeezablemayonnaise8904 AND IM TELLING YOU AS A PRO MECHANIC AT bike shop. installation is all it takes to fuck up the bearing enough to cause issues on the next frame. do what you will but its not best practice. bottom bracket shells are heat treated. bb bearing casings generally arent. you shave off part of the outside of the bearing installing it as well as do some "damage" to the frame on install. using a new bearing keeps shit snug the longest a bearing thats already slightly under sized can cause issues.
it doesnt matter how hard you ride. a toddler riding a bike with the same shit done to it bb wise can damage the frame and bb. bb who cares but a frame? id rather spend 40$ and assure the frame is good then a bearing being reused to save a few bucks.
What brand bike repair stand would you recommend? For the novice rebuilder.
Epic!!!
Have you got a how to vid on converting from a 1 piece crank to something like this 1 in th8s vid?
We need a How to Phu series
He has 2! Called Tech Thursday and What The Phu Wednesday’s lol
sir, can i use subrosa 3pc crank that comes with an american BB to a frame with Mid BB installed?
I really wanna get him to 5000 likes now, Fu in a bmx factory would be lit
Let’s smash these likes guys!
BB’s are like a guy getting outta prison.. a little loose..
Phu 2021
Hookers and absent dads, I sub'd for the humour.Great channel.
Do all sprockets need a top hat washer. What if your sprocket fits on the spindle without it
I lost it when he put grease on bolts with locktite on them...
Still works haha
A bushing driver set is the tool to replace your chisel my good friend!
So is it okay if your cranks are tight, i just installed mine with new BB and there pretty tight they only spin a quater if that
Yo please Do a 3 pcs 48 splin drive crank install from start to finish.
How much spline engagement is enough because only like half of my crankarm spline is engaged on each side
Chale...you got foo (Phu) out here lookin like he’s worn the subrosa dope shirt all week with this day in between videos jajaja...and then it gets southern Cali as F when he’s like aye Suavecito check out my mane 😂😂
I always thought bk was a great mechanic but phu is on another level! May not be as quick as bk but the amount of knowledge he has is insane
Now do forks next please. I have problems tryna figure out what small pieces go next.
Okay!
@@AlfredoMancuso thank you!
Could a detour past the proper tool be a c clamp to press the bracket in?
Hey man I need help with one of those crank I have to order bearing for mine and I don't know the size
I just bought snafu Mayweather cranks and the spindle WILL NOT fit in the cranks it's so incredibly tight and I don't know what to do, should I return them for new ones?
What if my spindle won’t go through the bracket? My GT set has a spindle with has a small lip that won’t let it go through the bearings. Are there spindles that need to be installed from inside rather than sliding it one side and out the other?
DM us a photo on Instagram: @alfredomancuso
I always measure and cut the floaty spacer to fit properly
how do you cut?
Get phu to talk about ⚙ gearing please. Thanks
th-cam.com/video/lHXmWgKRhiA/w-d-xo.html
9-25
10-28
11-30
12-33
Few others but like don't have to worry.
16-45
That's on twenty inch wheels. 9-28 is best. Good for fakies on cassettes. Its once over geared so harder to pedal a tad but faster top speed.
Hi mate can DK two piece crank take sealed bottom bracket ?
What if he were to measure the gaps/spacing and then pick the correct spacer instead of guessing?
Are u putting putting bottom cups in I'm old school I just press the bearing in
Is it okay not to put sleeve on mid bb frame ?
I don’t play bf5 anymore but damn whats ur sens? Ur cracked
Hey foo is it okey to put a lil bit of wd40 to make the bearing come out easier???
I installed my brand new cranks but when i ride a few times it gets loose i need help
Why would you throw the spacer away? The spacer prevents the bearings from side loading the catridge bearings. Just cut the spacer down with a pipe cutting tool it takes like 2 minutes.
Agree.
i forgot to put grease on my crank... Thanks a lot men HAHAHAHAHA
Bro I was at your shop I was the one that ordered 20 inch tubes I was about to get grips but I was to scared
The bearing spacer !!
this bike looking kinda nice ngl
Black and brown is clean
Did Phu cut the length on that tool? I’ve seen that tool but much longer
Lol if you guys have a dad...oh I love it
From 🇵🇭
✊🏼
What Up, just woke up rolled my ankle earlier so i took a nap lmao getting old.
Haha how’s the ankle doing?
@@AlfredoMancuso super rad, still riding tho
@@OpAfAnx I am 49, I feel ya.
What if the bearings don't fit that come with the cranks?