40KG is the maximum rider weight or total weight/load according to Yamaha's owners manual.
700 GM Average weight of Ostrich egg
The maximum weight for a pony is calculated using the same formula as for a horse. A horse or pony should never carry more than 20% of it's own body weight, this includes the rider and equipment. Remember that 20% is the upper limit, anything below that is better for the pony. As an example a 800 lb (362.8kg) pony can carry a maximum of 160 lbs (72.5 kg) in combined rider and equipment weight.
The speed of ponies, even of the same breed, varies greatly. It will depend on the type of turf and also how fit they are. The average gallop speed is between 18 and 25 miles per hour.
The maximum speed limit for a 150 cc scooter is around 60 mph. The size and weight of the rider plays a large part in the top speed.
One ostrich egg is equivalent to the weight of how many chichken eggs?
That information should be in the owners manual. If you do not have a manual you could look on line or ask the dealer for the specific brand and model in question.
I started mine at 2 years old. As long as the rider does not exceed 20% of the cow's weight it should be fine.
An ostrich is faster from a standing start; a horse is faster over distance.
The ideal motorbike to rider weight ratio is 0.07. The closer the ratio is to zero, the more it feels like one is riding without the motorbike weight, just the rider's.
25-30 depends on the weight of the rider 25-30 depends on the weight of the rider
my guess is the ostrich