Like to do as much of my own servicing as possible. Have a Scott carbon bike with a Dura-Ace SM9141 press-fit bottom bracket. Is there a tool specific to this for removing and re-installing / replacing BB ?? Can`t help always feeling I`m gonna take better care of my bike than some stranger would. Don`t really care if I`m paranoid or not. Stop picking on me will ya ?
Press-Fit BB
- Thread starter jimbut
- Start date
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accountantpete
OAP
There must be - here's the vid.
Not a job for the fainthearted!
Not a job for the fainthearted!
rusty bearing
Guru
- Location
- Chorley, lancashire
A quick search shows the tool seems to be around 40.00 region.
http://www.fatbirds.co.uk/4798/prod...ogle&utm_content=None&utm_campaign=PriceComp1
You also need a tool similar to that for knocking out headsets for removing the old ones.
http://www.sjscycles.co.uk/park-too...acket-bearing-tool-set-prod26949/?src=froogle
Seems to always come with the park tool attachments which unless you have their highly expensive but damn good headset press you won't need
http://www.fatbirds.co.uk/4798/prod...ogle&utm_content=None&utm_campaign=PriceComp1
You also need a tool similar to that for knocking out headsets for removing the old ones.
http://www.sjscycles.co.uk/park-too...acket-bearing-tool-set-prod26949/?src=froogle
Seems to always come with the park tool attachments which unless you have their highly expensive but damn good headset press you won't need
confusedcyclist
Veteran
A press fit BB won't work in a threaded shell, because only the friction between the BB cup and shell holds the surfaces together. Even if a commercially available adapter were available it would likely rely on the threads to be held in place. It may be possible to repair the threads with a tapping tool. Call around a few different shops to see if any have tapping tool you require. This isn't the kind of tool many DIYers will own.
https://www.parktool.com/product/bottom-bracket-tapping-facing-set-bts-1
https://www.parktool.com/product/bottom-bracket-tapping-facing-set-bts-1
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You have a few options - trying to retap the threads, helicoil inserts or a threadless bottom bracket. If it is a cheap throw away bike, you can also just bodge the hell out of it with loctite.
confusedcyclist
Veteran
Was I wrong about the threadless type BBs not being compatible? What did I miss?
I am a bit confused, you said a press fit would not work which is correct. However, a threadless one should work. https://www.sjscycles.co.uk/search/?term=threadless+bottom+bracket&category_list=758
confusedcyclist
Veteran
Thanks for clarifying, I hadn't come across threadless type before, in my mind threadless was just another term for press fit type.
