I came off my RMR 125 in the wet and decided there and then to replace the tyres before going back out on it. I bought Avon road rider tyres 110/70 17 for the front and 130/70 17 for the back. They are bit exspensive but I wasn't wanting to take the risk of coming off again because of poor tyres. they are tubless tyres but I fitted them with tubes and everything is fine.
Hope this helps!