Well today's my Birthday but I'm only 52, the Norton is a 73 BUT my BSA is a 68 thus leaving me only (3) years short so the combined cc's of a 850 + a 441 = 1,291 and that's more then the 1,096 days of the short (3) years so that combined with April 10th being my B-Day tells me I qualify!!! Now I just need to leave work 120 minuets early so I can go put the BSA's pipe back on & go ride that 100 miles!! On 2nd thought,,, maybe it should be 50-50-50!!! 100 miles on a 1968. 441 is a bit much at 52!!!