I do want to change the chain as well as sprockets but after my last adjustment and clean and lube I'd like to get all the life out of the chain that I can.
I know its at the replace chain marking on the swingarm (Due to stretching) but is this dangerous if I continue to ride with it or do I need to replace it ASAP.
OP, don’t overthink it. If the chain doesn’t fail the OEM “spacing between link pins” wear limit, it is fine. On other bikes I believe you measure a few links from pin to pin. I’m sorry I don’t have a diagram I am at work on break. Chains stretch the most when new and when they are worn out, so keep an eye on the chain slack.
Over 58,000 miles from one chain? Even with a Scott Oiler that seems like a very large number.
I can assure you it is the true figure. The chain itsrlf was not too bad but the front sprocket was on its way to being a Death Star. A Scottoiler was indeed used.
I've spent several decades with chain-driven bikes, from a lawnmotor-powered minibike, through my 6th gen, and then had a few 7th gen years to think about and research chains while I rode my wonderfully maintenance-free shaft drive 7th gen (OK, except the recall...). Now, I own two (yeah!) chain drive bikes. I'm a slow learner, but this is what I've learned:
I over-tightened and over-chain lubed. I didn't leave enough slack (more generally I am trying very hard not to over tighten everything, gradually succeeding 😕), and all that extra lube did nothing. These are sealed o-ring chains, the lube is only necessary to help the roller meet the sprockets. A bit of lube every 500 miles or so does the job.
I undercleaned. It's mainly the grit that kills the chain. Use WD40 or something similar as a cleaning agent, regularly, using a brush such as Tirox, which I really like, see photo, remove as much dirt and grit as possible, wipe down with rag and/or spray gently with a hose, and lay on a bit of lube on the rollers. Wipe off the excess lube.
I agree ^ People either over oil or under oil a chain. But it's that nasty salt damage and rusting and dusting that eats them alive... which a little extra chain grease does help last.
Kerosene is best. Liquid paraphin it's often called... or parafin or however you spell it.
Dense, thick, sticky greases trap all those grinding agents (dust, dirt, salt, grit, etc) in the chain and together make for perfect accelerated wear and tear.
A more fluid or thinner lubricant used more frequently is best.
Also as a previous poster mentioned, perhaps that sticker was not calibrated to your original set up, and anyway it's an extremely inaccurate measuring device... how do you know you're observing it from exactly the correct angle?
As another previous poster said (and both posters mentioned are trusted long term members here), keep adjusting until the eccentric won't give you any more adjustment and remember a slightly slack chain will last much longer than a slightly overtight one.