Been using MT's on the KLX650 (very similar to an LC4). I'm going to try a TKC on the back with the MT-21 up front. The front TKC is too square. Runs out of lean on pavement, and the knobs are too tight off-road. The rear MT-21 steps out too much on pavement, but is damn near perfect off-road. I'm thinking the stickier compound on the TKC will work well without giving up too much in the dirt. Should work real well in rocky conditions; just don't expect much in mud or sand.