Rite, Tonite i found a snap in my KMC kool chain, i was wondering if my bb i have at the moment is too long, causing the chain to be on a angle and put the chain under to much pressure being so far out on a angle? im wondering what would be the shortest bb i can run? and could someone recomend a decent short bb ? 
 
Im running; 
 
Adamant A3 Frame 
Truvativ DH BB 128mm 
GU Cranks 
Trialtech Sprocket 
Rear Profile Hub. 
No Bashring. 
 
Help ?