I’ve an Orange Five with a Hope threaded 30mm Bottom Bracket. ie. The BB has 30mm bearings (not the more usual 24mm) and I need to replace the bearings.

The BB is this one http://www.chainreactioncycles.com/hope-mtb-stainless-steel-30mm-bottom-bracket/rp-prod128184

My question is – How do you remove the bearings from the alloy shells? If I look inside the shell there is no ‘lip’ between the bearing shell and the alloy BB shell. Meaning there is no way to use a bearing puller or a socket on it to drift the bearing out.

I see that hope sell a BB bearing removal tool, but it looks like this works with 24mm bearings rather than 30mm…I may be wrong on this though (see http://www.chainreactioncycles.com/hope-bottom-bracket-bearing-tool/rp-prod53106?gs=1&gclid=CIna0ePikc4CFRa3GwodMsEKPA&gclsrc=aw.ds)

Any guidance from the STW masses? 🙂

There is a notch on the inside so you can get a punch/screwdriver in to start knocking them out.

Thanks unsponsored, I can see the notch you mean….sounds a bit heath-robinson compared to Hope’s normal standards of special tools etc.

unior do a bearing puller or as previously advised , tap them out.

http://www.halfords.com/cycling/bike-maintenance/bike-tools/unior-bb30-bottom-bracket-remover-tool

Thanks Blarc70 but I don’t think that would work, there is no exposed lip for the removal tool to grip onto

skydragon – Member

Thanks unsponsored, I can see the notch you mean….sounds a bit heath-robinson compared to Hope’s normal standards of special tools etc.

Pretty standard practice in other industries tbh. Why would you want special tools?

See the recent hammer thread , my preferred method is to use an expanding collet type tool and then beat them out

A little trick I was told about for the 24mm ones is to put the cup and bearing in a boiling cup of water (bearing facing down) and a few second later the bearing falls out. Heat the alloy cup to put in the new bearing, let it cool and job’s done 😀

Might work on the 30mm?

Sky dragon has your bb failed. I’m on my second Bb.