Every time I go to Andys lube about O ring chain comment on bike sites I get crowds arrive with flaming torches and pitchforks. I never lubed O ring chains on my Dirtbikes because of the grinding paste is made. After going through 2 rear alloys spokes way faster than I liked my bike now has a steel rear sprocket. There was a reasonable weight difference but so be it. I used to use a company in Oz called The Chain Gang, now defunct for supper strong off-road steel sprockets and was surprised to hear most Laverdas did use alloy sprockets on my first change. I cannot get my head around anyone NOT using an O ring chain, back before O rings you would be doing chain adjustments every couple of days especially on long rides. I can understand it if your racing a 125cc bikes as every tiny bit of drag on power needs to be removed but not so much on 1000cc road bikes surely.