Mach2 Calculator Mach2 Rack Planner for RVs Use this form to plan and verify the Mach2 tray configuration for your RV. "*" indicates required fields VRA-to-HPC of vehicle*Enter your VRA-to-HPC in inches. This is the distance between the vehicle rear axle to the hitch pin center.Ramp?*Do you plan to carry a ramp on this rack?NoYesTrays*Please enter the number of bike trays you will use1234Bike Weights (LBS)Enter the weight of the bikes for each tray in whole pounds. Round up if you have any doubt.Tray 1 Bike WeightTray 2 Bike WeightTray 3 Bike WeightTray 4 Bike WeightEvaluate my configuration Δ