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you could also saw in two slots on the inside of the cup and put a flat piece of steel (thick one) in them. hold the thing in a vice and use the frame as a lever. had to do it once on a steel bianchi - when it finally gave, it went with a ping. i felt like the ping shattered my bones and almost flew to the end of the shed due to the springiness of the steel frame and the force exerted on it...
oh and the reason i had to do this is that the "bolt the tool through the frame then use a big ass spanner on the tool, step on it and pull yourself down on the frame" method just sheared all 20 splines clean.
hma
Was planning to upgrade the groupset on my Dave Yates at the weekend, only to find the drive side BB cup was stuck fast in the frame:
Shot down to Halfords for some support:
After two days of 'liberal application', the BB cup remained steadfastly stuck. More to the point, constant efforts to remove the cup have started to shred the splines where the removal tool engages.
I am determined to get this fucker out, and want to avoid, at all costs, having to apply heat to the BB shell - the paint on this frame is just too precious.
So this morning, I have called up the heavy artillery:
Plan is to apply daily 'till the weekend, then have another pop at removal.
Fingers crossed.