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.
Re: How much do I need to weight to be a jump jockey or exercise. Dont quote me exactly but i think jump jockeys have to weigh about 9 stone max. Im sure if you google it you'll get your answer.e: How much do I need to weight to be a jump jockey or exercise. I'm just looking for the average but most say the max (or average max, As there isn't a maximum weight. I know the minimum is 8 stone) is 9 stone for flat racing, jumps are more.