Hi, So I had my bike serviced the other day and looks like the oil cap wasn't securely tightened. Heyho. I only noticed, as I've just ridden to France (staying at Albert tonight and heading to Troyes tomorrow) and noticed that I've oil on my back tyre. I've wiped what I can off with a rag (I'm in a hotel), and obviously tightened the oil cap. Anything I need to do, just ride in as if it's a new tyre. Or do I need to get it replaced? For the oil, there appears to be plenty in the oil window, so I don't think I need to get that filled up. I'm only here for a few days. Doh. Looking at the odd photo I took, I can see it was leaking on the train, by this point I've already done 200 miles, plus then another 100 in France. There is a triumph dealership nearby in Amiens if I need to pop there. Nightmare.
IMHO - Just scrub the tyre with soap, washing up liquid, etc and hot water. Rinse and repeat, until it dries off looking uncontaminated. If you can get a nail brush or such all the better
If you can get any, a good strong solution of traffic film remover will do the job. Don't be tempted to use white spirit or any solvent cleaners. I certainly would not consider changing the tyre!
I know one of the other responders has advised against using solvents but I’d use brake cleaner which is what I’ve used to get the odd splash of chain lube off of the tyre with no apparent detriment.
I wouldn't worry about it, the oil won't damage the tyre, you've already ridden 300 miles on it. As long as the majority of the oil has been wiped off, then enjoy the ride. You could ride through oil on the road at any time but after a short distance it will have wiped off the tyre.
I have used brake cleaner too. I did not use it on a large portion of the tire. I was doing a track day when the F3 sprung a leak. If hot water and a good dish detergent had been available. Soap and water would be better.