Just putting the bike back together, didn't do nut on top of the bearings tight enough so had a bit of play when breaking, about 2mm of movement
Did it tighter and it was impossible to ride steering was far to stiff, now been trying all morning to try and do it tight enough so that the steering is still easy to ride and there is no movement when you apply the front brake - seems that I can't it's either one or the other?
Following the exact same diagram here, races either side of the bearings I can't see what I'm doing wrong
