Bike Forums - Threaded bottom bracket to Press in?

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donhaller

07-22-19 08:19 AM

Threaded bottom bracket to Press in?

So, I have an older Giant carbon frame that uses a threaded 6600 BB. I also came upon a brand new Ultegra group that uses a pressed-in BB. I'm wondering if I can just swap out the press-in for a threaded unit and still use the new Ultegra 6800 crankset.

dedhed

07-22-19 08:34 AM

Should be able to use your existing BB or at least a new 6800 threaded. Both are HTII

https://si.shimano.com/pdfs/dm/DM-FC0003-06-ENG.pdf

TimothyH

07-22-19 08:50 AM

I agree with [MENTION=28167]dedhed[/MENTION].

You can use a Shimano SM-BBR60 bottom bracket. They are about $25.

https://bike.shimano.com/en-EU/produ.../SM-BBR60.html

-Tim-

sch	07-22-19 01:29 PM

As per dedhed, if you present BB is ok, you don't need a new one.

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