Removal and fitting of BB71

steve_kay

Hi guys. I've just bought a new groupset and have also bought the above mentioned bb. Do I need any special tools to remove it and install the new one? The bike is a 2014 Cube Agree Sl.
Thanks in advance

Steve

patrickf

If this is a BB86 standard then the "proper" tools for the job is this:

http://m.parktool.com/product/pressfit-bottom-bracket-bearing-tool-set-bbt-90-3

You'll also need a headset press compatible with the bushings. This is the one I used:

http://www.wiggle.co.uk/cyclus-headset-press/

patrickf

If the BB71 you have is this:

http://www.chainreactioncycles.com/mobile/tr/en/shimano-bb71-road-press-fit-bottom-bracket/rp-prod61803

Then it should definitely be a BB86 bottom bracket.

steve_kay

Thanks Patrick. I think that I'll just get my LBS to replace it as it's quite expensive for the tools. Thanks

steve_kay

Yes that's the same one I bought. I bought it from them as well

patrickf

Steve_kay wrote:

Thanks Patrick. I think that I'll just get my LBS to replace it as it's quite expensive for the tools. Thanks

Should be straight forward for them.

Plenty of people use makeshift headset presses (or even buy home made ones off eBay) using a threaded bar and a stack of washers. Removal *can* be done with a screwdriver or similar. While a home made press should be ok, I probably wouldn't advise removal with anything else.

In fact removal with the proper tool was hard enough! The original cups (brand new) were in so tight it took me a while to persuade them to pop out.