Don't let rolled curbs damage the undercarriage or wheels of your RV or lower-profile truck. Bridjit's Curb Ramps are designed to fill in the steep gutter gap so you have less of a chance of hitting your vehicle's overhang. The curb ramps are made of recycled tires and don't get in the way of street sweeping. They won't block water flow, either. The three-piece kit measures 12 feet long when bolted together. Price: $299. Additional modular sections are available for $99 per section.