National Producer Number definition, categories, type and other relevant information provided by All Acronyms. NPN stands for National Producer Number Search for acronyms, abbreviations,
Height Considerations. There are no height limits for jockeys. However, jockeys tend to be shorter than normal to meet the weight guidelines. The average height for a jockey is between 4 feet 10 inches and 5 feet 6 inches.eight Limits. Depending on specific race and track guidelines, a jockey must weigh between 108 and 118 pounds without clothing and equipment, which can add a significant number of pounds.
The general recommendation is the 20% rule. The rider should not be heavier than 20% of the horse's weight. A horse or pony can carry up to 20% of its own body weight. The rider AND the tack should weigh no more than 240 lbs. Assuming you are riding Western, the rider should weigh no more than 200 pounds. If you are riding English, the rider should weigh no more than 215 lbs.