Jockeys need to be very light-weighted in order to increase the speed the horse can achieve during a race. The average jockey weights between 108 to 118 lb. (49 to 54 kg).
Yes.
150pounds
The weight of professional jockeys ranges from 108 to 118 pounds. The jockey and the riding equipment cannot weigh more than 126 pounds.
There are no minimum or maximum height requirements for jockeys. However, because jockeys are so light-weighted, the typical height ranges between 4”10 and 5”6 feet.
Horse jockeys are typically shorter people. There is no average for their weight though it is doubtful they weigh much.
So that they don't slow the horses down.
They watch what they eat / drink, and get plenty of exercise.
they don't have to be they are normally because less weight makes them go faster
There is no minimum weight.
Normally, jockeys are fairly short but not because there is a height limit. Instead, there is a weight limit assigned to each horse and the rider and his equipment must not exceed that limit. Usually jockeys are shorter than 5'6" due to the weight consideration.
A jockeys standerd weight is 108-118 pounds but the maximum weight assigned at the Kentucky Durbie is 126 pounds
The Clerk of Scales is the official (under the Racing Secretary's Office) who "runs" the Jockeys Room, weighing the jockeys out before a race and reporting any discrepancies in their weight to the stewards. His job is to make certain the jockeys are at or under the legal weight for that race's (and their mount's) allowance. The Clerk of Scales also notes and reports any changes of jockeys or of silks, and provides the Paymaster of Purses with a list of riding fees due each jockey that day. This is also the official who can be seen in the Winner's Circle after the race, recording the weight of every rider (and his gear) after he or she dismounts, to make certain no "weight was dropped" after the jockey's pre-race weigh-in.