Shimano Dura Ace BB92 Press Fit BB Fitting Guide
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- Опубликовано: 22 июн 2020
- Shimano SM-BB92-41B Press Fit Bottom Bracket Fitting Guide If you find the videos helpful and would like to make a small donation to help support the channel you can do so here www.paypal.com/paypalme/freet...
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vids like this are a gold mine, thanks so much, replacing BB actually looks approachable now with the right tools.
I can't thank you enough for all these videos. It's really great to have all these groupsets and parts in one place. Keep it up, very helpful!
Your videos are amazing. This is EXACTLY what I needed. Very detailed, and easy to follow footage. Thank you so much for making these. I just subscribed to your channel.
Thank you for all these great videos, you saved me too many times! Keep it up.
best bb vid on youtube!
You’re an absolute angel mate
Good work and good explanation!
Excellent tips.
Thanks
Thanks for the nice video. I guess I will have to visit the local shop instead of doing it by myself. Thanks from Seoul
Good info
great, thank you.
Another great video and very helpful for me and my bike. That Park Tool removal tool is so expensive though. Guess there is no cheaper way like you normally suggest, especially when working on your carbon pride and joy.
I got the Shimano BB12 tool for a lower price of the Park Tool
I was wondering how it managed to turn...thanks for explaing where the bearing are :)
5:48 Using the removal tool on the 2nd bearing is blooming awkward. Its a lot easier to use a 24mm socket and bar on the 2nd bearing.
15:18 Installing shimano bbs with the single tube is also a pain, it often moves out of place when pressing. The two sleeve tube that FSA use is much easier as it stays in position when winding the bearings in.
Great video! I wanna just be sure right and left is only referred on the internal spacer . may you confirm Are cups equal?
Great video as usual. So annoying having to buy special tools to remove and install these. I have a Shimano SM BB72-41, would the tool at the start you used work? What model is it? What about the adaptors on the threaded rod where did you source those please and what type are they etc, what size rod. Many thanks 🙏🏻
SOLVED: Removal tool is a park tools bbt 90.3 and it comes with those adaptors if anyone else needs to know this information!
Hi, I have a problem, while using the Park Tool to knock out the NDS bearings (they were in extremely bad condition) the bearing housing itself which I think is a composite? (it's Shimano BB71-41) basically disintegrated leaving me with a problem oh how to get the remnants out without damaging the frame. Any advice greatly appreciated.
What type of grease would u recommend? Is PTFE grease (Super Lube) safe?
How many kilometers will such a support last before it needs to be replaced?
Hi thanks for the video.. I was wondering why don't we use grip paste instead of grease for the cups....wont grease harm the carbon over time? 🤔
Use a Lithium based grease it doesn’t effect the carbon resin!
Another great detailed video, thanks very much. My bottom bracket is creaking so from what you said I would need to use locktight or grease, but I have heard that you shouldn’t use grease on a carbon frame because it can react with the resin holding it together. I just wondered what your thoughts were on this. I am a bit worried about it.
You can use a neutral grease - I use Molykote 111 with a carbon shell
Stuart Strachan . Thanks for the info, I’ll get some.
You can use Lithium grease! Lithium is Alkaline, not Acidic. Lithium grease won't be absorded into the resin!
Free To Cycle Thanks very much. I’ve got some lithium grease so I’ll use that. Thanks for replying. Great channel.
Giant specify neutral grease so I went with that.
Another very detailed and to the point video. THANKS!
On the use (or not) of grease/ adhesive/ anti-seize: Shimano does not mention any of these in their installation manual. I understand your approach would be first to use nothing, and see if there is any cracking. If there is, then try anti-seize/ grease. If there issei's till, then use Loctite. Correct?
Only drawback I see, is that I should then disassemble the BB repeatedly, which means potentially damaging it when blowing with the hammer.
Another question on the use of grease: would grease not allow some movement of the bearing cups under load? maybe that is the reason why Shimano does not mention it?
Your comments would be very much appreciated! Thanks
PS: I very much prefer threaded BBs....unfortunately frame manufacturers do not seem to agree with me
Have you already got answers for your questions? I also need to know if greasing bb cup and inside bb frame is necessary. Most mechanic in our place said that i need so it will be easy when removing it in the future. Thanks
@@elvyskennethmiguel8817 No, I got no replies. I have mounted mine with no grease, but I have not DE-greased the surfaces either. So I count on the extremely thin layer of grease that is on the parts naturally. Again, if Shimano engineers for whatever reason believed some grease was necessary, I am sure they would have mentioned it. I trust them.
Incidentally, after 9 months of use, I hear no noises and it works very well.
@@fabiopunk1661 grease would only keep any gaps lubricated to reduce clicking/squeaking. There's going to be movement which you don't want so realistically you want to loctite and not grease as loctite will 'lock' it in place rather than grease any movement.
@@out_spocken Again, who better than the designer and manufacturer would now how to assemble? They mention no grease nor lactate. I have followed their instructions and after two years of use, no fancy noises. If I had some noise, then I would consider doing something.
Standard bb shell?
Very good video and informative, thank you. A question if you don’t mind me asking, currently I have a GXP Press fit bb bb92 on my GIANT 29er, could I replace it with a DUB press fit bb92, I’d like to replace the NX cranks with SRAM Stylo and I am no too sure if DUB press fit would fit.
Kind regards,
Florin
Yes the dub bb92 will fit!
@@FreeToCycle great news, thank you.
Why to knock out the non drive side first?
Hi, thanks for your video. I've learned a lot. When I removed my BB, a shimano press fit from a road bike, it was really soft to do. I've used the dedicated tool. When I've installed the new one, I could fit tionly by hands, so I'm guessing that the tolerance of the bottom bracket housing is too low...
I've noticed that, pedaling, the bottom bracket is rotating (I've checked by placing a bit of tape to mark its initial position). I've no lateral ovement, or creacking or anystrange feeling while pedaling, but the bottom bracket is rotating on its housing on the frame...
Do you think I should fix it (by using some retainingc ompound) or having it rotating a bit is not a big deal?
Thanks again!!!
I would apply some retaining compound to the BB Shell as it will only get worse overtime!
@@FreeToCycle thanks a lot.. you're very nice! Any suggestioni for retaining compoud brand? My frame Is carbon, but the hole where the BB fits, is alluminium..
Loctite 641 retaining compound.
@@FreeToCycle thanks a ton!
Can i use copper Grease netwerk the bracket and a Carbon frame? Or do i need to use a special Carbon Grease?
You can use a Lithium based grease with a carbon frame! I wouldn’t use cooper grease on a press fit bb!
hey mate. quick question . i made a mistake for buying a groupset on shimano 5800 and realizing the the bottom bracket is threaded. and the frame i bought is compatible with bb92 press fit. will that shimano dura ace bb92 press fit compatible for the shimano 5800 crankset? thanks! im new to building bike and i didnt know that crankset had so many types.
Yes the BB92 is compatible with the 5800 chainset!
@@FreeToCycle thank you so much for the reply. have a greatday!
How important is the plastic bit/tube between the two sides or the bb?
Are these bb all the same width, or it varies from frame to frame? Cheers
There are many different BB widths so you have to make sure you get the correct BB. The plastic tube is part of the Shimano BB. It keeps the spindle clean inside the frame and if you have DI2 or internal hydraulics it prevents the wires and hoses from touching the spinning crankset spindle.
My giant TCR calls for a bb86 bottom bracket, will this bb92-41 Dura ace bottom bracket work ?
Yes the bb92-41 will fit!!
Hello,
It's possible to put lithium grease on the cup? Lithium grease is bad in contact with carbon or it's okay?
Best regards.
Lithium grease is okay!
@@FreeToCycle thank you for reply 🙏🏻 I hope you feel better after your accident.
I was little bit lost with the question of grease for press-fit bottom bracket on a carbon frame because here in France nobody have the same reply 😅😅😅
So i will use my lithium grease for the cup of PF BB.
Thank you have a nice day.
Can I ask what grease you use in your grease gun? I'm doing this same job at the moment. Thanks
Lithium based grease! Lithium is alkaline not acidic so doesn’t attack the carbon resin in the frame!
@@FreeToCycle Any particular recommendations? I bought a grease gun like the one you use, and I'm confused with the large selection of different greases. I just need something multipurpose that I can use on most bike applications.
Weldtite TF2 Lithium grease is a good all round product!
@@FreeToCycle Funny enough that's the one I was going to say I was looking at :D Thanks for the help and all the great videos you upload!
How about marine grease? It's a darker green/blue grease. I heard it's a safe one too?
This bottom bracket can be open and service?
No!
Does the side matter for the install ? or the cups can be used on any side, left or right?
Did you receive any answer about that??
@@Francesco-pf8hf does not matter I believe, can't remember now
Many thanks @@Cyclingchoice
The cups can be used on either side!
Is bb92 will work on my r9100 dura ace crankset?thanks
Yes!
@@FreeToCycle thanks man..👍🏾
One more question pls..is the bb92 wheel manufacturing brand will fit my 2017 specialized venge?thanks..i wanna make sure before buying the bottom bracket
Bb92 for crankset deore m6100 fit?
BB92 is for road bike applications.
What loctite type is used for bottom brackets?
Loctite 641
@@FreeToCycle Thank you for the reply but you also need some primer first?
Marek Juraszek
22 minuty temu
Hi, I just installed my pressfit BB86 with resing cups (Shimano BB-RS500) for the first time inside my bare carbon shell. Is it normal for the resing cups (or bare carbon) to snap/click loud like this when pressing in ? I was afraid I am damaging something ( I was using a home made press tool) but I ensured that the cups were prefitted parallel to the shell axis. I also lubricated both the cups and the shell with a little bit of waterproof grease. I think that even though the grease has been applied, the cups were sort of 'tension jumping' due to the friction with carbon but I want to make sure that this snapping noise is normal for bare carbon shells. can you advise ?
Yes it’s normal to hear those sorts of sounds from the bb when pressing them into certain frames!
Clicking noise...loud.. stripped down back wheel/ hub...dropouts...chainset/rings...ordered new BB...removed n/d pedal spot of grease...silence!