Im planning on going for a ride with a mate tomorrow. Just a cruise. May find some twisties but in general, just a leisurely ride. Problem is, ive got my bike booked in next week to get new tires but noticed that my rear tyre has started to deteriorate. The outer edges are fine, but the centre is starting to split or peel. Not the whole way round the tire. Just in 2 places. See pic: I noticed this on Tuesday and have ridden since then. Bike feels fine. Opinions please?? Safe or not safe? I really really wanna go riding tomorrow!! Would probably be a 150km trip i would imagine.