How To Diagnose And Fix Your Bike's Drivetrain Problems!

[@matthewroot1606]

From one older guy to another, Happy Bday Phu!!!🎂 it’s been a long time man, so happy to be watching these...Matt Root

[@AlfredoMancuso]

👊🏻👊🏻🥳

[@jakjohn672]

I put on the bsd hybrid hub and dam the only thing I miss about traditional free coaster is how w the female axles u don’t have to break the chain every single time I get a flat ... wow what a pain

[@AlfredoMancuso]

Very true!

[@jadonmckenzie5994]

@@AlfredoMancuso can u help me what cog should I use for a 54 chainring on my 20inch frame??

[@MerchantOfDeath15]

@@jadonmckenzie5994 check online for information regarding front to rear teeth ratio... I believe the my dirt jumper is a 13:34 Id guess a 15 tooth rear for a 54, but find that chart online to be safe!!!

[@jadonmckenzie5994]

@@MerchantOfDeath15 ok thx

[@battleriflebeats]

Max got the goooood pedals

[@AlfredoMancuso]

Those are solid

[@eddiestone7610]

I had to diagnose an S&M BTM frame I had. It was making noise when I pedaled so I figured it was the mid bearings. I put the new mid ones in the bb and noticed it wasn’t fitting in there right. So whoever had it before me had taken the bearings out too much or something bc I had never seen a frame that bad before. Making a clunk clunk sound every time you pedal but in the cold it didn’t make noise at all. I’m an older rider so I take care of my bikes as much as I can. That wasn’t the only thing wrong with it sadly. The head tube was messed up too bc my steering didn’t spin right. It had a big dent in the down tube and bunch of dents in the chainstay. The guy must have thought the frame was the pegs bc this thing was wrecked. I got it for free so I rode it for a while but I was glad to get rid of it.

[@lildobeez5402]

Happy birthday phu💯

[@dr.estoh_1nder447]

What about tight spots in the chain, y'all should do a video on how to fix that, if you haven't already

[@clarkesuperman]

Yesssssss

[@AlfredoMancuso]

We have but we shall do another

[@dr.estoh_1nder447]

Sweetness, I'll keep an eye out for it bro

[@noahbonanno6783]

It’s usually because you don’t have the hat washer on your sprocket correctly, or you don’t have one on at all.

[@rgw1380rw]

That's the problem I have with my chain. I can't seem to make it run evenly without either scrapping the rear u brake, or pulling tight at a certain point when I'm pedaling.

[@pauljames1978]

The popin on a bike normally is a new chain on old sprockets or worn clutch in the freecoaster or need some dry lube on the chain 👍🚲💨

[@AlfredoMancuso]

That wasn’t quite the reference we were going for, but that could also be it

[@429supercj]

Nice ogk mags over dudes shoulder at 2:55

[@Canongang]

Aye I bought a used bike and the chain is tight and loses of that makes sense. I make a full rotation it’s tight, another rotation it’s loose

[@emersonbadio]

It could be your sprocket. If the sprocket is bent even a little it’ll do that

[@AlfredoMancuso]

Bent sprocket for sure

[@matty3064]

You should do one on drive side hub gaurd alignment

[@UniQue1992]

Happy belated birthday to you Phu! And once again thank you all for the useful information.

[@EnriqueMorales-d5m]

Mf I had that cracking problem and I js loosen it and dam it’s gone deserves a like and a subscribed from someone who is barely starting in the bmx world

[@AlfredoMancuso]

appreciate you!!

[@willienillie6337]

When I visit southern cal, I’ll stop by.

[@owen687]

Man these videos don’t disappoint

[@TheNameYME]

Most Helpful Information Ever!1! He gets straight to the point!!

[@ItsAnAddiction]

Aaayyyeeeee it yo Birfdayyyyyy!!!!! 🤙🤪✌✌ Happy B-Day Phu!!!

[@LuisMartinez-lt7vm]

Thanks big shout out to all of y’all keep doing your thing 🤑

[@Michael0Yo]

Awesome videos. Sure do wish your shop was in south Florida! Hard to find BMX specialists down here.

[@jeremiefitzpatrick9722]

Happy Birthday Phu!:) Great video, helped alot with my chain tension.

[@bigjobby7115]

Happy Birthday Phu 🍺 another Epic vid Mr Alfonzo 😁

[@AlfredoMancuso]

😡😡😡 haha

[@andreaspallotta9862]

thanks guys this is so helpful, i got an eclat halflink for my birthday and it crackles like crazy, I tried grease, keeping it loose, although as soon as i pedal, so I apply pressure it does an infernal noise I don't think it's the bash guard of the sprocket either

[@Peculiarsafe83]

I’ve had multiple custom bikes since I started riding. I don’t ride much anymore, but I can tell you from experience that majority of the time it’s not the chain or the driver from the hub. The only way it would crackle because of the chain is alignment being off. I figured out it was the bottom bracket bearings. It did that in all of my bikes. I replaced the bearings meaning I had to hammer out the old ones and replace them, once I did that the popping and cracking noises went away. And if you run a guard sprocket, make sure it’s aligned straight because if you don’t the chain will eat up all of the teeth on the sprocket especially if it’s a shadow halflink.

[@andreaspallotta9862]

@@Peculiarsafe83 thanks i’ll make sure

[@CBikesss]

I always come back to this video. Such a great video and very simple fix once you know from this video

[@copeyhagen4249]

for people wondering is there a fix... i just rebuilt a WTP arcade, it was happening to a brand new chain and sprocket. swapped the wheel for another wheel and it wasnt happening.. went back to the salt rim and happening again. was driving me fooking nuts. tried loosening the sprocket holder bolt and tried to free the tension at the tenser part, but nothing changed. put the bike down and rode it and it doesnt happen. for me anyway, it only happens when theres no load on the bike... thats why hes saying dont worry about it. so get out there and shred.

[@I._.sem19]

We need a video that shows how to fix loose and tight spots in chain

[@boompumper]

Happy Birthday Phu!

[@kikogomezbmx]

Happy birthday phu! 😬

[@aurteekay6339]

I had the same issue no audible sound but it was like a crackling vibration and it ended up being my chain. I just flipped my bike upside down and turned the pedals quickly forward and then medium speed and then suuuuper slow to find the exact spots it was Happening during my pedal rotation and I saw the issue immediately pedaking super close I upside down, the chain was wobbling left to right for some reason… even when it’s tight… idk what’s up with that I guess ima have to just get a half link and really be sure to size it nice and perfect

[@nokneesisaiah]

I love these bike shop videos🔥🔥

[@chuckt8557]

Good sh*t phu.....good sh*t🔥🔥🔥 knowledge is power 👍

[@AlfredoMancuso]

💯💯

[@flyinsaucer138]

hell yes it my birthday too i knew i love Phu for a reason Geminis forever i'm coming to meet Phu before i die lol happy birthday G

[@lazyskb]

Happy Birthday Phu!!!

[@adamsifford6228]

Happy birthday pooh.

[@potaylor9992]

Awesome info phu, Al awesome for the videos provided by you to our Bmx Rider's

[@AlfredoMancuso]

💯🙏🏻

[@orangecrush50]

I had the popping when I peddled, it turned out to be my chain. Some of the links were warped

[@Richgee31]

HBD Phu

[@bweltagaming3807]

I heard that crackling sound when i was using kmc k710 chain. Recently changed mine to pyc p-121 halflink chain the crackling sound lessen and it’s lighter to pedal with the k-710 i feel the chain is binding on hub drive

[@johnsd333]

I like your videos, super informative. Had mx motorcycles my whole life but on big BMX now. Your videos are helpful learning the ins and outs. I want to come by and visit your shop. Thanks for your content Really appreciate it!

[@ghost_boy8162]

Happy phu day

[@AlfredoMancuso]

😂🥳

[@cxmpyet4989]

Do you have any videos with any of your friends riding a 20 inch bmx bike?

[@DirtDigglerDetecting]

i am 49, fuck birthdays LOL Happy Birthday Phu

[@voiceofreasonandfacts8623]

The sprocket and cog need to line up. Also it happens if your chain is too tight, it's putting too much pressure on them

[@TheReBoyz]

I got a used bmx and it’s not terrible but it’s rlly hard to petal

[@DirtDigglerDetecting]

Omg i would cry if my bike started sounding like that.

[@demonxuka4732]

pusssy boy

[@DirtDigglerDetecting]

@@demonxuka4732 F off Troll

[@keam210tx]

Suavecito got that foos hair so slick he couldn’t help but throw in an anatomical joke 😂

[@joelvideira5360]

Love the videos!!!! Master PHU!!!!

[@zemertv5950]

😍😍nice one sir Alfredo sir...🙌🙌🙌🙌

[@itzeclipzify6156]

These videos are super helpful and informative keep it up 👍🏼

[@AlfredoMancuso]

🙏🏻🙏🏻

[@Wellunknownbmx]

How do I tighten inserts in my hollowbites at home? One of them is getting loose, the tightens itself and then gets loose again. What’s your fix for it?

[@AlfredoMancuso]

You can use a flat head screw driver and a hammer to lightly tap on the backside to tighten them up

[@rgw1380rw]

When I loosen the tension on my chain, it hits the rear u brake at that certain point when spinning the crank.

[@savionboston4982]

I recently bought a Eclat E440 Freecoaster. For some reason slips when I pedal. Its like spinning tire when I start pedaling fast, also it takes a full pedal to engage for the first pedal, how do I fix this problem

[@DirtDigglerDetecting]

LEGEND ALF, Filming,,,, 5:41 Epic Shot !!!!!!!!!! HAhahahaha This videos is Killing me lmao

[@lukeboehmer5790]

Dang dude, y’all really blueballing us with the end not tanking about drivetrain alignment 😐

[@AlfredoMancuso]

We have 5 other videos on this channel about that subject

[@rikkibaillie2290]

Would have to be a severe alignment issue,

[@carstarsarstenstesenn]

"You're not the migos, shut up!" lol

[@cfmechanic]

Happy late b day phu. You can keep da bomb sauce consider it an early present lol.

[@mambocowboy]

Great info. Thanks!

[@paulnonaca964]

If my profile elite rear hub 14t cog wants to spin the pedals forward like a fixed wheel what's going on with it?

[@lamCracky]

I have a mongoose and gear 7 is too hard to pedal but gear 5 and 6 are too easy. What do I do?

[@dragos1322]

JUST THANKS !!!!!!!!!!!!!!!!!!

[@RAXtheGREAT]

smooth as eggs lmao

[@sickofthebs93]

Can we just get a How to Phu channel?

[@AlfredoMancuso]

so my channel, without me, sounds good

[@owen687]

I have the same problem, I got the shadow half link and it’s been making that noise. Got a new sprocket and the same thing. With the stock KMC chain there’s no noise. So I’m thinking it’s just the stock wheel. And I mean the chain has a tight spot and the loose sport but I think that’s normal. Can anyone tell me what’s wrong?

[@MerchantOfDeath15]

The shadow supreme chain is a fair bit thicker than any other chain ive seen, and i know they can rub on bashguards if thats what you have. Do like Phu said and check the wheel out. Or clean the chain..

[@austinbreeding9532]

I have a gsport racing cassette hub on my bike and the chain keeps coming loose no matter how much I tighten it. What going on ?

[@torvinson4611]

ALFONSOOOO!

[@FarnNordin]

Yo Phu... why is everything on Epic BMX website "Sold Out"?

[@Khris_Man]

I just got mine fix last month Nd it wasn’t my cranks it was my front wheel barren making the noise.

[@Khris_Man]

Bottom bracket*

[@zacsweeney747]

When i spin my cranks back ward the chain gets tight in the one spot and makes it harde to spin backwards

[@adamsifford6228]

I may have my chain over tightend... Wow

[@NipponStiqqyPaint]

Next week Phu diagnoses your parents failing marriage

[@AlfredoMancuso]

Hahaha he knows about it all

[@NipponStiqqyPaint]

@@AlfredoMancuso lol 😘

[@Racts]

when i peddle forwards nothing happens when i peddle backwards my bike goes forward how do i fix that

[@LittlBr-bf9lu]

Yo so I just got a new crankset and bottom bracket and I just bought a new chain and now there is this noise like you can hear every link clunk when I pedal on the bike but not when I'm off

[@LittlBr-bf9lu]

Anyone have same problem I think it's my driver but my springs and pawls seem fine

[@DirtDigglerDetecting]

EGGS lmfao hahahahahahaahahahaha I Love you Phu

[@kicknantas7578]

first thing it could be,the alignment.

[@actionthomas5077]

hey when i pedal hard my sprocket is skipping, its like something isnt connected

[@stevehasbeenthere]

Dude your videos don’t get shown anymore :.no notifications ..was wondering where the hell u went haha ..

[@AlfredoMancuso]

I know :( I’ve been here but KZbin suppresses my content

[@covom5281]

Mine only makes a popping noise when I put weight on it

[@companionbmx404]

I have a 12.75 back end slammed 25t 9t. It crackles a lot cause it's slammed. When I add an extra link the axle is almost at the end of the dropouts. What should I do?

[@ProfKaos-yf8oq]

Do you have a halflink chain? That can help it got shorter links

[@companionbmx404]

@@ProfKaos-yf8oq yes dude I do have one half link. It just gets so tight when it's slammed. It's eating awat my sprocket ;(

[@ProfKaos-yf8oq]

@@companionbmx404 damn dude i have the same problem when i slam it. Maybe try out a normal chain. There is no other way to fix this to be honest. You could consider slighty grinding your dropouts deeper for a few mill but i would not recommend it

[@nessie42786]

Have you thought about using a rat tail file or a burr tool in an air grinder. File or grind the drop outs a little deeper to move the wheel forward. Just make sure your tire still clears the frame and brakes. Shit will rub if you go too far. Ask me how I know a 2.4 tire don’t fit no moe.

[@jeremygonzalez6143]

anyone know why i can petal backwards and it moves backwards instead of freestyle

[@bmxwithchris]

damn how straight his wheels are

[@JRuiz33]

I put a new sproket odyssey 30t with new shadow conspiracy chain n naw i have a creaking noise

[@davidrinaldo1367]

I can't figure out why my back tire keeps moving on me.

[@jakjohn672]

More hucker

[@AlfredoMancuso]

Agreed!

[@rikkibaillie2290]

Engineering 101

[@adamsifford6228]

Probably bearings In crank most likely.

[@tunaman8168]

Phu

[@AlfredoMancuso]

🤌🏼

[@jhonsilvernatabio1266]

Dream bike 😌

[@AlfredoMancuso]

💯

[@robertcash8370]

Hi Alfonso 😂

[@AlfredoMancuso]

😡😡

[@coreymckenzie8945]

It's a bit late but happy birthday. Hopefully you have learned not to use power tools on your bike to tighten bolts. I'm sure you have plenty of experience using them and have enough knowledge to not ruin the treads or stretch the bolts and such, but I know you know that using power tools is like gambling, you can easily spend money on lottery tickets and know you have a exponentially better chance at losing than winning. Do you like winning? If that means breaking a bolt in a female hub using a impact wrench over and over to eventually cause some serious issues like a broken bolt that you now have to remove?

[@adamsifford6228]

Tell Alfonzo I said fix you own bike .Lol no you can get in trouble but I cant.....

[@erickmora467]

What about washing

[@NipponStiqqyPaint]

🥶

[@AlfredoMancuso]

🙋🏻‍♂️

[@lucasballinger8177]

I've seen it

[@lucasballinger8177]

It's called for what it's worth

[@avexerz7649]

Hi

[@AlfredoMancuso]

Yo

[@avexerz7649]

Ima bit early

[@AlfredoMancuso]

Gang gang

[@adamsifford6228]

You have to have love for this shit or I would not watch this ..

[@GNRNXTTv]

🤣🤣🤣 your not the migos shut up 🤫!!! Lolc

[@joelarchuleta1814]

lol teach the kids to never start there tread with the impact gun. Come on!

[@chrisrosario3311]

Build a adult trike

[@chantelrhine8965]

Okay...okay okayyy the dumbest ive ever felt

[@santiagoortiz3643]

Late again