Hi all, I have a 2017 300rr factory, its got about 50 hours on it, it was fine for about 45 and then started to over heat in technical terrain, it is fine when your going fast. I assumed it was the head o rings as that is well documented so changed them but is has made no difference. The bike has no thermostat. The bike did not have any over heating I have owned it from new ridden it in red hot summer days no problem now its the winter freezing cold and the over heating has started so there is defiantly something "broken". Can anyone suggest any other issues that could cause this? Cheers.