Hi All,
I have a Truvativ Ruktion crankset that came stock on my STP style hardtail and find that when commuting the gearing is too low and easily spun out. Do you know if it's possible to add a 3rd ring to this set? If not, and if I change the larger of the 2 existing rings (currently 32 tooth w/ stock bashguard) do I need to by Truvativ rings or can others be substituted? This will probably screw up the gearing big time when off-road though so I realise that inevitably I may have to replace the whole crankset. If that is the case what spline 'style' should I be looking for to suit the existing 'Howitzer' BB?

Thanks in advance