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Reducing the weight of the bike + rider by 1 kg would increase speed by 0.01 m/s at 9 m/s on the flat (5 seconds in a 32 km/h (20 mph), 40-kilometre (25 mile) time trial). The same reduction on a 7% grade would be worth 0.04 m/s (90 kg bike + rider) to 0.07 m/s (65 kg bike + rider).
The price of a new bicycle can range from US$50 to more than US$20,000 (the highest priced bike in the world is the custom Madone by Damien Hirst, sold at US$500,000 [10]), [11] depending on quality, type and weight (the most exotic road bicycles can weigh as little as 3.2 kg (7 lb) [12]).
In 2022, the second edition of Kids on Bikes raised $182,049 on Kickstarter from 2,793 backers. [1] There are three other games in the series: the space-themed Teens in Space, a game about a school for wizards and witches called Kids on Brooms, [2] [3] and a forthcoming superhero game called Kids in Capes. [4]
A wooden balance bike. A balance bike (or run bike) is a bicycle without pedals that learners propel by pushing their feet against the ground. [1] By allowing children to focus on developing their sense of balance and coordination before introducing pedalling, balance bikes enable independent riding more quickly than training wheels.
Various Bike Technical Data [2] Dimension length 1,809 mm x width 560 mm x height 1,307 mm Wheelbase 1,219 mm Ground clearance 107 mm Seat height 729 mm Tank capacity 11 liters Frame type Aluminum, twin tube Machine type Liquid cooled 4-stroke engine Lubricant type Semi dry sump, forced pressure and wet sump Transmission 6 speed Clutch type
The Scalpel was a light-weight full-suspension bike designed for cross-country racing with flexible carbon-fiber chain stays instead of a pivot, providing 63 mm of rear travel and 67 mm from model year 2003 on. In 2008, Cannondale introduced an all-carbon Scalpel, and moved the rear shock to enable 100 mm travel.
On a flat road, an intermediate cyclist can average about 18 to 20 mph (29 to 32 km/h), while a professional rider can average up to 25 mph (40 km/h). [4] At higher speeds, wind resistance becomes an important factor; aerodynamic road bikes have been developed over the years to ensure that as much as possible of the rider's energy is spent ...
The metabolic equivalent of task (MET) is the objective measure of the ratio of the rate at which a person expends energy, relative to the mass of that person, while performing some specific physical activity compared to a reference, currently set by convention at an absolute 3.5 mL of oxygen per kg per minute, which is the energy expended when sitting quietly by a reference individual, chosen ...