If I opened up hole on sprocket to 60 mm will that be enough to fit over coaster brake ?
Going to shop tomorrow, hopefully guy can machine it out for me
hole doesn't need to be round or centered, just take your dust cap with you to be sure the hole is big enough to clear it - if hole isn't centered, just be sure it doesn't scrape the cap on the short side - I usually just open it up with a round file when I do one