Im running an absolute black oval ring, there is a bit of up and down movement of the chain but i reckon you could use a chain guide with it. You would just have to make sure the guide is adjusted to account for the movement, if your using one with a bash plate thingy it would have to be large enough to protect the "long" side of the chain ring. I reckon you can feel the oval a bit when coasting and it messed my rad wheelies up at first. But I also cleared a really steep techy pinch that ive probably ridden 20 times before and never made it up on my first ride.