I have a Felt Z-70, which is the relaxed frame geometry as I have a bad back. Purchased new four years ago in May. Frame is aluminum with carbon fiber fork and seat stays. Components are Shimano 105. I have, I think, about 5000+ miles on it (I was down for awhile with health issues). So next year the bike will be 5 years old. Bike is not thrashed or anything, just curious if there's a time where the frame (BB, steering, things like that too) may start to get too old and it's time to get something new or if frames last for a great while and just upgrading wheels and components is a better way to go.
Right now I'm fairly overweight, 220 lbs, but was 240 and am losing and hope to be in the 160-180 lbs range by May, and my rides are about 30-40+ miles at 12-17 MPH on flat easy roads. If I get down to the weight I want, I may try some Cat 5 Masters races just for fun. I'll be 58 in March. I'm in No. Cal, so the weather is fairly nice, no mud, snow, salt, etc, and I keep the bike in good condition as I'm an old MX/Desert motorcycle racer, so it's in my blood to sit in the garage and keep the bike clean and maintained.
So just wondering if I my focus should be on getting a new bike, or just the upgrade components, etc. as the frame on my bike will last and I can keep it for a long time as long as it fits and feels good.
Thanks in advance.