just went to change the bearing on my HT2 bottom bracket , and when i removed the first bearing cup from the frame, loads of water came out from behind the cup where it sits in the frame , by the state of the water it looks like its been there for a while gently finding its way into the bearings and doing its damage . simple solution ive driiled a 4mm hole
in the bottom of the frame below the bottom bracket to allow water to drain away that may get into the frame, just thought ide mention this in case other 456 owners may get this problem, it might help prolong bearing life.