Bike Upgrades. Shimano Hollowtech II Bottom Bracket and cranks Replacement
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Published 2023-02-27
Bike upgrades. DIY with ASRM
Turn on the subtitles, sit back and let us begin.
In this video tutorial I will show you how to replace a Shimano Hollowtech II bottom bracket and cranks. How to remove bicycle cranks.
Be sure to lubricate the removal tool, all threaded connections must be lubricated. Your equipment will last longer and the disassembly of the assembly will be easier and faster.
Repeat after us and you will be able to replace cranks on a bike without difficulty. Now let's compare the difference in weight between old and new bike cranks. The difference is insignificant, but it lies in the weight.
How to remove a bicycle bottom bracket. The old bottom bracket under the square is heavier. Therefore, the whole rod system is lighter when using Hollowtech II. In the workshop I use long levers, large tubes so you can unwind each part. Come to our playlist, you will find many videos on the operation of the transmission. The old bottom bracket was dirty. All the dirt that flies into the frame falls on the bottom bracket. Then everything creaks and squeaks. New bottom bracket. Shimano Hollowtech II bottom bracket sm-bb52 out of the box. The manufacturer puts a lot of grease in the bottom bracket. This grease can be used to lubricate threaded connections.
Spacers, a very important detail. I'll show you clearly how, without instructions, individually for your carriage knot, you can pick up RINGS. First, we will weigh our new Hollowtech II bottom bracket. The old bottom bracket for the square and the new bottom bracket, as you can see, the difference is significant. Our bottom bracket is 68 - 73 mm. The frame is 73 mm wide at the bottom bracket shell. Spacers allow you to adjust the width of the bottom bracket. Pay attention to the spacer selection. Depending on the trimming, dobby glasses can be completely different.
This is the universal way to choose the right spacers. Replace the bottom bracket. Lubricate threaded connections well. The lubricant will repel water and your sled will live much longer. Subscribe to the channel and like) Bicycle cranks replacement. If you do not lubricate the splines, and they need to be lubricated, your cranks will creak and make an unpleasant creaking noise.
The left crank has a special pin. It must be lifted. It is necessary to tighten it so that the rod does not dangle and does not have to be pulled. The force should be moderate. Left connecting rod, it is important to tighten correctly with a force of 12 or 14 Newton per meter.
The rest of the knots in this video we tighten by hand, according to my experience, sensations. But this knot must be tightened according to the rules cross over the cross tighten the bolts in turn. All! Our bikes are ready.
00:00 Bike upgrades DIY
00:23 How to replace a Shimano Hollowtech II bottom bracket and crankset
00:35 How to remove bike cranks
02:30 How to remove a bicycle bottom bracket
04:34 Shimano hollowtech II bottom bracket sm-bb52 unboxing
06:53 Bottom bracket replacement
09:04 Replacing bicycle cranks
#cranks #bicycle #bikeoverhaul
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Write in the comments, what you would like me to do in the new video.
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All Comments (21)
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❤ If you liked this video, 🙏 share this video with your friends 📈 it will help the development of the channel! ❓ ask your questions
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A new follower from Iraq, I live in Turkey. I love this work, may God grant you success in what is best for everyone
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My favorite part was the silence.
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Хорошая камера, много света, нет лишних шумов на заднем плане, нет музыки - это то, что я люблю. Подписался.
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you should check chain line and clearance between frame and ring gears, to adjust it with spacers(left or right side)
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This is one of my planned upgrades for my mtb. Thanks for the thorough video.
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Your video helped me replace the cartridge bottom brackets on my old road bike and folding bike with Shimano BB-RS500 and BB-RS501. Thank you.
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HT II cranksets are really great and Shimano BB-s, I personally use M800 BB and it still works fine after 2000 Km
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self explainatory, great video indeed, thanks. all the info I needed!
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And mostly all this with one hand! Good job filming and servicing your bike! I subscribed for sure. Very well done bro.
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THE very best video on YT that I have seen showing how to to this!
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I recently did this on a 2001 Giant OCR-3. It was not easy to get the original parts off a 23 year old bike, but now it's rocking a 105 group set instead of a vintage Sora.
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el eje central ,al lado de la catalina lo estaba desajustando al reves. muchas gracias. explicacion clara y amena.
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This was one of my first upgrades I done to my mountain bike I havea Giant Reveal it's 29er next to get the front fork but not wanting to blow over $300.00 hundred just for my computer mountain bike ok off to Harbor freight and getting a roller toolbag Happy New Year's. THANK YOU KRRP MAKING CONTE...
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best thing i ever did to my bike going from 4 sided gizmo to hollowtech ...that square shaft always got loose .
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Gracias por compartir tus vídeos y su conocimiento con el resto del mundo saludos desde Cúcuta Colombia 🇨🇴👍🪗🚲 Ya tienes un suscriptor más
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wonderful video very professional and well done using a lot grease it come along way it help dissamble parts easier without destroying the bike . I used white litum on BB that is coated lightly is there a high chance the bottom will sieze up? if I decide dissamble in the near future I had the bike almost one year and I never let the bike get wet at all and never wash the bike either. Your thought's and your opinion. Thank you
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Hint: on the hollowtech bb there is a lot of grease plummed so you can take it with your finger and use during installation. It is the og shimano grease that is better than divinol fett
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5:30 You should compare the weight with the new axle. The comparision you did here demonstrated old bearing + axle vs new bearing only (without axle). The axle is the heaviest part of the old bearing, too, so it's not a surprise that new part without the axle is much lighter.
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Funny thing, I always go the other way. Square taper lasts longer (in some cases never changed) for me at least and with less annoying noises. Worth noting that I'm >100kg with a recorded peak watts over 1000. But then again I'll only ever fit Shimano.
