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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 - MemberThanks 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.