Carbon gives strength and kevlar material provides flexibility.It will save you a lot of time in case of potential damage during competition weekend. Carbon/Kevlar parts can hold up several contacts and hits, without need of replacing them. And at the end it will save you decent amount of money. Estimate weight fiberglass - 3,70kg, Carbon Fiber [Carbon/Kevlar] - 1,90kg.______________________________________________________________________________________________ * Prices below do not include shipping costs.Request a quotation and Your shipping quote/estimate will be emailed to you. All parts are for TRACK AND RACE CARS only (not exhibition), adjustments will be required at fitting. Please note that there may be occasional small imperfections, such as small cracks, scratches and/or slight size variations, which in no way affect their high-performance capabilities.