It doesn't get more detailed and specialized then this guys, upgrade your 31" EPP Racer model to the max!!! Our new Crack Carbon Fiber Upgrade Kits are design for all the 31" Racer EPP models. With excellent tensile strength and precision machined made in the USA these are carbon fiber parts you can truely count on. Each Carbon Fiber parts weights the same as the factory wood pieces but far exceeds the durablity and strength. Each kits comes complete with all needed parts for each 31" Racer EPP models.