Gear Ratio Speed Calculator

    gear ratio
  • This is used to compare gearing. For example, on a road bike with 18 gears, there are 2 chainrings and 9 cogs. To check the gearing, count the teeth on the cogs and chainrings and create a chart with the rings on top and the cogs on the side.
  • (in a gearbox, transmission, etc.) The ratio between the rates at which the last and first gears rotate
  • The gear ratio is the relationship between the numbers of teeth on two gears that are meshed or two sprockets connected with a common roller chain, or the circumferences of two pulleys connected with a drive belt.
  • (Gear ratios) Differental rates of speed between sets of pinions to provide higher or lower rotation of the rear wheel in relation to the engine.
    calculator
  • Something used for making mathematical calculations, in particular a small electronic device with a keyboard and a visual display
  • a small machine that is used for mathematical calculations
  • A calculator is a small (often pocket-sized), usually inexpensive electronic device used to perform the basic operations of arithmetic. Modern calculators are more portable than most computers, though most PDAs are comparable in size to handheld calculators.
  • an expert at calculation (or at operating calculating machines)
    speed
  • rush: move fast; "He rushed down the hall to receive his guests"; "The cars raced down the street"
  • accelerate: move faster; "The car accelerated"
  • Rapidity of movement or action
  • The rate at which someone or something is able to move or operate
  • Each of the possible gear ratios of a bicycle or motor vehicle
  • distance travelled per unit time
gear ratio speed calculator
gear ratio speed calculator - Speed [Blu-ray]
Speed [Blu-ray]
Speed [Blu-ray]
Hold on tight for a rush of pulse-pounding thrills, breathtaking stunts and unexpected romance in a film you'll want to see again and again. Keanu Reeves stars as Jack Traven, an L.A.P.D. SWAT team specialist who is sent to diffuse a bomb that a revenge-driven extortionist (Dennis Hopper) has planted on a bus. But until he does, Jack and passenger Sandra Bullock must keep the bus speeding through the streets of Los Angeles at more than 50 miles per hour - or the bomb will explode. A high-octane chase of suspense, non-stop action and surprise twists, Speed is a joyride sure to keep everyone on the edge of their seats.

Everything clicked in this 1994 action hit, from the premise (a city bus has to keep moving at 50 mph or blow up) to the two leads (the usually inscrutable Keanu Reeves and the cute-as-a-button Sandra Bullock) to the villain (Dennis Hopper in psycho mode) to the director (Jan De Bont, who made this film hit the ground running with an edge-of-your-seat opening sequence on a broken elevator). This is the sort of movie that becomes a prototype for a thousand lesser films (including De Bont's lousy sequel, Speed 2: Cruise Control), but Speed really is a one-of-a-kind experience almost anyone can enjoy. --Tom Keogh

Gear Ratio Poster
Gear Ratio Poster
A Chromatic Guide to Bicycle Gear Ratios. 20" x 24" Poster Currently in print production.
Gear Ratio Poster (detail)
Gear Ratio Poster (detail)
A Chromatic Guide to Bicycle Gear Ratios