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.
DIMENSIONSLENGTH115.9HEIGHT44.1WIDTH37.4WEIGHT406 lbs. 2010 Yamaha. Bravo LT. In the early 80's the short track was available and had a weight of 386 lbs then the sled was only available in the long track at 406 lbs. DIMENSIONSLENGTH115.9HEIGHT44.1WIDTH37.4WEIGHT406 lbs. 2010 Yamaha Bravo LT In the early 80's the short track was available and had a weight of 386 lbs then the sled was only available in the long track at 406 lbs.