ProRac RVSK-020-1 Fork Skewers Kit by Prorac. $75.24. Pro Rack Systems, Inc. Fork Skewer Kit, 2-Pc. Go Pro Rack, or go home! This dependable bike system is durable and safe to give you peace of mind while traveling. Components are made of rugged aluminum alloy with a tough, electrostatically-applied black powder coat finish. Pro Rack Systems, Inc. Fork Skewer Kit, 2-Pc.