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Isn't grade ten the best? Have read that campag use grade 25 in their wheels and headset but no idea if true.
Grade 100 should be okThe grade 3 is the best, followed by 5, 6, then 10, 25, 50, and on. Grade 50 are general industrial grade, where things need to work for months or years without fail. Grade 100 will definitely be OK, as long as the headset is kept adequately compressed, lubed and clean of contamination. I’ve also read that Campag use G25 bearings, which is great but general users would get better performance from G100 bearings that they look after a bit, vs. G25 bearings that are neglected.
Muc-ed-off-
Sorry wasn't clear, grade 25 is the very best I'd use on a bike, as we both have read that campag use that grade.
Have found that buying 250 balls a time that the 100 or 50 grades are the same price. Reminds me that I need a restock as I have indexed headsets to clean and rebearing.
EDIT Jinxed myself, took first headset apart, it is caged ball bearings and the grease is just a sticky mess of gunk that brake cleaner isn't shifting.
lynx
Isn't grade ten the best? Have read that campag use grade 25 in their wheels and headset but no idea if true.
Grade 100 should be ok, if the headset has brindled, you can use slightly larger balls to help solve that problem.
@timages try simply bearings ;) if you want postage or if you are in north London belts and bearings in north london