Can't remove Bottom Bracket (Truvativ Power Spline)
this is my first post, so please be patient.
I have a Boardman (Hybrid, not MTB) Team, 2 years old, and a few days back my non-drive side crankarm fell off. I checked and apparently the crank bolt broke off, with one half still stuck deep inside the BB. I checked on bikeradar and other sites and concluded that it will be impossible to get the bolt out and replace it, and that I would have to replace the BB. I now have two questions: how do I get it out, and what best to replace it with?
1) How do I get the BB out?
I followed the various instructions here and elsewhere, removed the drive side bolt and crankarm using an extractor, and also removed the non-drive side cup. But I did not manage to get the BB out. According to the Boardman manual it is a Truvativ Power Spline. And the tool I am using is similar to the one pictured here:
However, I cannot get the BB out. I am turning it into the correct direction (clockwise) but it does not move, despite intense force. Am I using the right tool? For although the splines of the tool fit those of the bracket, they do not go in very far (maybe 2 mm), so I am sliding off easily and am not getting a good grip.
Once I have had it out, what should I order to replace it with, without having to replace crank arms, chainrings etc. also? Or is another Truvativ Power Spline good enough?