This models integrated skid plate protects your chainrings from rocks, roots & literally any trail obstacle that requires you to roll over it. The top of the frame mounting area has a raised fin, which will also prevent the chain from dropping behind the chainring & into the bottom bracket shell area of the frame. If you prefer to run the V2 as a chain guide only, then the skid plate can be removed & the dual pulley chain retention device will still perform to the same high level.