Why your bike won't accelerate. Bicycle drivetrain failure.

Рет қаралды 139,182

Күн бұрын

It's a classic situation when you bring your bike to the workshop, we test it and it doesn't want to go.
You get on the saddle, start pedaling, the chain moves, the rear sprocket spins, but the bicycle wheel does not want to gain speed.
This breakdown is inside the bicycle wheel.
Today I will show you the main reason why this happens.
Video without verbal communication, showcasing mechanical sounds. Understandable across languages; follows a DIY video approach.
For those who have a deep love for cycling, this video is a gem.
00:00 Pedaling, but the bike isn't moving.
00:20 Transmission spinning on the bicycle.
00:37 Removing the bicycle wheel.
00:58 Removing the bicycle cassette.
01:39 Bicycle freehub turns backward.
01:53 Removing the bicycle hub axle.
03:26 Removing the bike freehub body.
04:47 Inside view of the bicycle freehub.
04:57 Magnetizing tool.
05:48 Removing the bike freehub shell.
06:55 Damage and defects on the inner surface of the freehub.
08:04 New, undamaged bicycle freehub shell.
#bicycle #freehub #bike
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Write in the comments, what you would like me to do in the new video.
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Ask your questions in the comments
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Пікірлер: 84

@NiceBikeService 3 ай бұрын

If you liked this video, share this video with your friends ❤ it will help the development of the channel! 📈 Thank you for your comment! 😍

@basilegriboid.4149 10 ай бұрын

Superbe vidéo et belle investigation pour découvrir le problème de vitesse !

@HAL_9k 3 ай бұрын

Taki czyściutki rower ktoś przyniósł a wewnątrz taki dramat. Wada materiałowa skorupy bębenka.

@NiceBikeService 2 ай бұрын

Tak więc ten model tulei ma jakąś wadę fabryczną w wolnej piaście. Nigdy nie kupuj tylnych tulei shunfeng😃

@stevengagnon4777 9 ай бұрын

Glad to see you retain that tool for opening the freeub body. I kept my own because the one used by the rest of the shop was usually in bad shape.

@NiceBikeService 9 ай бұрын

👍

@user-jk5un2hl8l 9 ай бұрын

좋은정보 감사합니다!

@NiceBikeService 9 ай бұрын

친절한 리뷰 감사합니다!😽

@marceloleo-nz8zk 9 ай бұрын

Muito showww! Ganhou um inscrito!!!

@NiceBikeService 9 ай бұрын

Thank you for your feedback 😽

@trzykawki54 2 ай бұрын

tego kanału szukałem!:)

@NiceBikeService 2 ай бұрын

Miło nam powitać Cię na naszym kanale 😺

@VictorYarema Ай бұрын

The weird thing is that the damage is not evenly distributed. I am curious about the state of the chain which was used to cause such a damage to a freehub body.

@NiceBikeService Ай бұрын

For some reason, this bushing manufacturer has a high percentage of defective freehubs. The bike was used for one season, the chain and cassette were still in good condition

@kovie9162 2 ай бұрын

My guess as to why this happened is that excessive play developed that wasn't addressed, leading the outer FH body to wobble and cause the pawls to hit the "teeth" (not sure what they're called) on the inside of the outer FH body at an angle and gradually chisel away at them and wear them out so there was no longer enough metal to engage, causing the pawls to slip. Although, the fact that the cogs appears to rotate at different speeds in the first part of the video suggests that perhaps there was an issue with the cassette or FH splines as well.

@NiceBikeService 2 ай бұрын

Thank you for your comment! 😘 Almost all freehubs from this manufacturer have some kind of defect

@HypocriticalElitist 24 күн бұрын

I was assuming that the way the cogs appeared to rotate inconsistently was an artifact of video framerate, like how wheels sometimes appear to rotate backwards.

@Puntti435 10 ай бұрын

👍 from finland

@concernpinoy9228 10 ай бұрын

👌

@rafau9230 10 ай бұрын

Można wiedzieć jaka to piasta? Wydawałoby się, że dość solidna na łożyskach maszynowych, a materiał bębenka z plasteliny.

@ernesturbanski7751 9 ай бұрын

To może być Novatec z aluminiowym bębenkiem bo mają 3 zapadki ale głowy nie daje sobie uciąć

@rafau9230 9 ай бұрын

@@ernesturbanski7751 Wcześniej dostałem tutaj odpowiedź od autora, że są to chińskie piasty Shunfeng. Nie wiem dlaczego ten post zniknął.

@aureoreis6030 8 ай бұрын

Isso acontece quando não se lubrifica devidamente as partes internas do free Hub. Todas as parte que ficam em contato precisam estar fubrificadas pois quando decemos uma ladeira sem pedalar o atrito e tanto que Azula tudo, o ideal é colocar uma graxa mais firme na carcaça interna e afinar a graxa com óleo e colocar nos macaquinhos e na mola.

@NiceBikeService 8 ай бұрын

obrigado pelo seu comentário! Compartilhe meus vídeos com seus amigos, isso ajudará no desenvolvimento do canal! 📈😘

@thigas7808 8 ай бұрын

Acabou a embreagem 😂😂😂😂

@NiceBikeService 8 ай бұрын

😂😂

@leogeta1675 6 ай бұрын

Donde puedo comprar el nucleo el buje el del minuto 7:00 nuevo ? Y muchas gracias si me pudieras pasar el link

@NiceBikeService 6 ай бұрын

Es mejor no difundir enlaces, afecta negativamente al canal. Consulta con tu tienda de bicicletas

@leogeta1675 6 ай бұрын

@@NiceBikeService muchas gracias amigo y por cierto trabajas bien padre

@user-zw2rd5um2h 8 ай бұрын

영상잘봐습니다. 저는 시마노sxl구동계사용합니다 주행중에 패달을 정지하면 턱하는문제가있거던요 질문을 드려봄니다

@NiceBikeService 8 ай бұрын

동영상을 만들어서 보여주는 것이 좋습니다.

@user-su5mz6pf6x 3 ай бұрын

こんなにも欠損したシマノのフリーハブ映像は初めて見た。どんな乗り方したらこんなになるんだろう

@HoracioMega22 8 ай бұрын

Cual es la medida de las bolillas interiores del piñon? 1/4??(wath is the size of internal balls? 1/4??

@NiceBikeService 8 ай бұрын

En milímetros, mide 3,175 mm

@konradpopowicz3457 10 ай бұрын

Co trzeba zrobić żeby tak zmielić bębenek 😂

@semimaru4 8 ай бұрын

5:45 なんか、この聖域に踏み込んだ感じ好き

@NiceBikeService 8 ай бұрын

コメントありがとうございます！私のビデオを友達と共有してください。チャンネルの発展に役立ちます。 📈😽

@andrelange9877 10 ай бұрын

When does this type of damage happen? Any ways to prevent it?

@attheendofthedayx2933 10 ай бұрын

It happened to my hubs when I pedal on uphills using heavy gearsspeed.

@andrelange9877 10 ай бұрын

Does greasing more often help prevent this problem from happening?

@MrBoxershorts16 8 ай бұрын

@@andrelange9877 You could grease your freehub body everytime when you change your cassette, but there is a specific freehub grease for it. Too much or the wrong grease and the pawls can not move properly.

@andrelange9877 8 ай бұрын

@@MrBoxershorts16 I thought I should grease the freehub when I feel the pawls tic-tic noise gets louder to the point the neighbors can hear me arriving home after pedaling.

@kem0654 8 ай бұрын

@@attheendofthedayx2933 true, I've experienced it

@bhoot1702 2 ай бұрын

I guess it's because of no grease inside? Or maybe because of age?

@NiceBikeService 29 күн бұрын

No, because of very active riding, when you bang the bike pedals sharply on the cogs,

@bhoot1702 29 күн бұрын

@@NiceBikeService I see makes sense

@NeverFollowTheCrowd 10 ай бұрын

Wow this just happened to my Scott hard tail 940 and th bike is pretty much new smh idk what to do

@NiceBikeService 10 ай бұрын

I sympathize with you. You'll have to look for a new drum for your hub, and if not, you'll need to re-spoke the wheel.

@gammelgemse 9 ай бұрын

Warranty?

@NiceBikeService 7 ай бұрын

The warranty is from me

@makantahi3731 4 ай бұрын

you should have noticed the irregular operation in the beginning and then serviced the hub-reshape sprogs and teeth

@NeverFollowTheCrowd 4 ай бұрын

Can’t you just replace the free hub?

@saleh_hma 10 ай бұрын

✅✅✅

@Oleksii_Popov 9 ай бұрын

You should NEVER colect balls with a magnet. This makes bals magnetic and they'll collect all steell dust. Also do not mix balls from inside and outside rings

@NiceBikeService 9 ай бұрын

Thanks for the advice, we didn't even think about it🙀

@rodenreyes6320 5 ай бұрын

Grease and oil collect steel dust...what shall we do?

@makantahi3731 4 ай бұрын

both side balls are the same dimension, why not mix?

@Oleksii_Popov 4 ай бұрын

@@makantahi3731 "the same" they are only brand new. outer and inner row works with complitly different load and conditions. And even after 1000km they have different wear. It really matters

@makantahi3731 4 ай бұрын

@@Oleksii_Popov I disassembled many cassette bodies and did not notice any difference in the wear of balls, cups and cones. All these parts do not carry any weight, but only the force of the chain and that only while the cassette is at rest, so the cassette does not rotate while under load, unlike the main bearings which carry the weight of the bike, the rider and all reactive forces due to bumps in the road. In the cassette there are 25 balls(shimano/mostly) on each side and all parts are made of very hard/hardened steel. The only thing to watch out for is that the same number of balls that were taken out are returned to each side.perhaps only one side would wear out if the end gears were constantly driven, for example the first two or last two gears, and even then there would be no wear as in the main bearings, but there would be a depression from the balls in the cone or cup