I´ve got a lot of new old stock ball bearings for older British bikes, some still in the boxes greased, others were originally wrapped in a roll of 10 and we´ve only used a few off the roll. How would you feel about using 40 yearold British parts as against new Chinese ones, although some sizes will not be made now we´ve gone Metric? PS, We had 10 inches of rain here thursday which is why I´m not in my shed.