SIZE YOUR KINETIC RECOVERY ROPE TO YOUR VEHICLE Purchase your Factor 55 KERR based on your vehi- cle’s gross vehicular weight rating (GVWR). A prop- erly sized rope for typical SUVs and trucks is one that has a 4:1 to 6:1 minimum breaking strength to GVWR ratio. For larger vehicles (Unimogs, EarthRoamers, Earth Cruisers, heavier military trucks, etc.), a 2:1 to 4:1 ratio may be acceptable.
KINETIC ENERGY ROPE SIZING GUIDE, ROPE DIAMETER LISTED
If you use a smaller and lighter KERR, rope break- age might occur. If too large and heavy, the rope won’t stretch enough, reducing the maximum kinetic energy assist. The KERR must be suited to the GVWR of the lighter of the two vehicles used in the recovery process.
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