Start doing long climbs, you'll see the need to stop lifting. Not because of carrying the extra muscle but the energy burned lifting is a big downer on long climbs.
I lifted for about ten years. If you lift like you say, your body won't forget. I stopped lifting when I started longer mileage on the bike. When I quit lifitng, I was benching 320. I thought I was toast as far as lifitng but when I did go back to the gym (dragged by my daughter wanting to workout) within a month I benched 330. I don't know how I dveloped strength in lifitng from riding but it happened. Well yeah, I can understand in a way.
But if you lift like you say, I think your body will respond quickly if you ever decide to take up lifting again."thumb"