Good question, OP.
So many variables. RPM run, oil used, maintenance intervals. I haven't looked at what it takes to replace the timing chains. Typically on cars we'd replace the chains, the sprockets, and usually some wearing part on the tensioner. Often there would be some magic aftermarket tensioner thing that we'd put in. But I've never done a bike. From my experience, the engines with dirty oil and sludge had the chain damage, and the engines that were sparkling inside as seen through the oil filler cap never came for chain work. If that holds true for the VL800 mine should go past when I'll need it - only 35,000 miles and I do maybe 8000 / year.
So many variables. RPM run, oil used, maintenance intervals. I haven't looked at what it takes to replace the timing chains. Typically on cars we'd replace the chains, the sprockets, and usually some wearing part on the tensioner. Often there would be some magic aftermarket tensioner thing that we'd put in. But I've never done a bike. From my experience, the engines with dirty oil and sludge had the chain damage, and the engines that were sparkling inside as seen through the oil filler cap never came for chain work. If that holds true for the VL800 mine should go past when I'll need it - only 35,000 miles and I do maybe 8000 / year.