Hi,

A bit of a dorky question, but here goes.

I just replaced the bearings on my elderly Shimano 600 (aka ultegra) front wheel hub (takes 3/16" ball bearings).

How many bearings should it normally take? I read that most front hubs take ten 3/16" bearings. There were 10 bearings fitted, but I noticed that there was a ball-bearing sized gap i.e. there was room for an 11th bearing. Figuring that maybe the last person that renewed them had screwed up, I replaced the ten old bearings with 11 new ones (now no gap). The hub appears to work fine - is the gap required to allow proper bearing operation i.e. should I dismantle again and remove the extra bearing?