Maximum Speed. An average walking speed is somewhere around 3 miles per hour, but fast walkers and power walkers can often walk at speeds at or above 5 miles per hour. The speed at which you feel more comfortable running than walking is known as your break point, and a typical break point would be somewhere between 4 and 5 miles per hour.
Mini Skateboard Deck width: 7.0â³ with an average deck length of 28â. Mini decks are the best skateboards for beginners who are 6-8 years old, between 3â5â and 4â4â tall who wear size 4-6 shoes. Mid-size Skateboard Deck width: 7.3â+ with an average deck length of 29â. For skaters 9 to 12 years old between 4â5â and 5â2â tall who wear size 7-8 shoes.
Note: Shimano 8- 9- and 10-speed cassettes/hubs are fully interchangeable for wheels with steel Freehub bodies. The only parts that are different in any important way between the 8- 9- and 10-speed systems are the shift control levers. 7-speed hubs only accept 7-speed cassettes --though 8 or 9 sprockets can be installed on a 7-speed hub, using 9- or 10-speed spacing. 2  It is also possible to transplant an 8- 9- 10-speed cassette body onto most 7-speed Freehubs.