The design of the F2 Drive Knuckles is unique for very good reason. Aluminum skid plates that are common to ATVs can be very heavy. Sometimes up to eight pounds or more. This can be very detrimental to the performance of your suspension. Because of the large area that needs to be protected, ground clearance is often lost. Because of the shape and material of many skid plates, obstacles tend to catch or snag on obstacles instead of gliding over them easily. The F2 Drive Knuckles solve all of these problems. Once you have bolted them on you can smash with confidence.