Isn't one of the main points about running 116mm is you don't have the hassle of a 135mm tensioner hanging down from the right side of the bike, so if you sidehop etc it was break anything? So why use a 74 kingz tensioner? Apparently they don't work very well unless you set them up good and i don't think it is worth £30 for a bit of plastic and a hacksaw blade type thingy lol I think you should drill out the cams you got now and try that, it wouldnt be hard to do anyway, if not, just get some cams that will and don't use an old tensioner for 135mm bikes as it kind of defeats the whole object of a 116mm. JK