64 here, CF road bike, Aluminum road bike, Aluminum Hybrid, Steel MTB, Folder Trike. Still looking for N+1. I do about 4 centuries a year sometimes five. I have done 2 road races so far and so far was an alternate rider and crew in the furnace creek 508. All things I couldn't do back the last time I was into cycling. Do I feel old? There are days but all in all I am still on the right side of the grass and looking forward to 6 to 8k next year. I hope to beat my road race time by a few minutes this year and maybe do two extra Centuries. If you love riding half as much as I do now you will love it here.