This is well plowed ground in the Versys community. There's a fair sized bunch who think the Versys makes a great gravel runner, so the search for tires has been brisk. The problem is that there were none for a 17" front until recently, so folks raised the fender and ran a rear on the front. The tire companies are starting to catch up to a new market and there are now 17" fronts available. Among them are Heidenau K73, Pirelli Scorpion Trail, Conti TKC 80 and Avon Distanzia. There are others, but we had a power outage while I was doing the research last night, so that's all I have for you. I haven't run any of them yet, so can't offer any opinions.