Bike Gear Ratios Chart

    gear ratios
  • (Gear Ratio) The gear ratio is the ratio by which the gearhead reduces the motor speed. The speed at the gearhead's output shaft is 1 Gear Ratio times the motor speed.
  • (in a gearbox, transmission, etc.) The ratio between the rates at which the last and first gears rotate
  • (Gear ratio) The relationship between the number of times a reel spool turns for each revolution of the handle.
  • 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.
  • a visual display of information
  • a map designed to assist navigation by air or sea
  • make a chart of; "chart the territory"
  • A weekly listing of the current best-selling pop records
  • A geographical map or plan, esp. one used for navigation by sea or air
  • A sheet of information in the form of a table, graph, or diagram
  • A bicycle or motorcycle
  • bicycle: a wheeled vehicle that has two wheels and is moved by foot pedals
  • bicycle: ride a bicycle
  • motorcycle: a motor vehicle with two wheels and a strong frame
bike gear ratios chart
bike gear ratios chart - Boston Gear
Boston Gear G481Y-P Bevel Pinion Gear, 2:1 Ratio, 0.188" Bore, 32 Pitch, 16 Teeth, 20 Degree Pressure Angle, Straight Bevel, Keyway, Brass
Boston Gear G481Y-P Bevel Pinion Gear, 2:1 Ratio, 0.188" Bore, 32 Pitch, 16 Teeth, 20 Degree Pressure Angle, Straight Bevel, Keyway, Brass
This Boston Gear G481Y-P bevel pinion gear is made of brass, has a straight bevel, a 32 diametral pitch, 16 teeth, and a keyway to transmit torque between perpendicular shafts to provide rotational power to another part of a motorized system. This bevel gear is intended for use with a G481Y-G bevel gear for applications requiring a 2:1 gear ratio. It has a keyway and setscrew for use with a 0.188" diameter keyed shaft (not included), is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability, and has unhardened teeth for applications where hardness and strength are not needed to transmit torque and motion. The 20 degree pressure angle provides a lower contact ratio between gears than a smaller pressure angle, resulting in higher load capacity. This gear is used only with its mating gear because bevel gears can mesh only with gears that have the same pressure angle, spiral angle, and diametral pitch (that is, the number of teeth per inch). This Boston Gear bevel gear is suitable for use in a variety of commercial and industrial applications, such as construction equipment, aeronautics, conveyors, and manufacturing equipment, among others.
Bevel gears have a blunt-end cone shape with teeth along the cone face and are used for transmitting torque and motion between perpendicular rotating shafts. A bevel gear's pressure angle, spiral angle, diametral pitch (also called DP or pitch), and its material are important factors to consider. A bevel gear is part of a set of two gears, and the gear ratio for the set is determined by the number of teeth on each gear. Gears come in several types for use in different power transmission configurations and for different applications, including spur gears (for rotating shafts parallel to each other), change gears (to increase or decrease torque and speed), helical gears (for high rates of rotational speed), internal gears (where one gear is nested inside the other), rack and pinion gears (for turning rotational motion into linear motion), and worm gears (for perpendicular shafts in tight spaces and quiet operation). Gears are suitable for use in the agriculture, automotive, construction, mining, and packaging industries, and can be found in a variety of machines, including bicycles, automobiles, and elevators, among others.
Boston Gear manufactures gears, gear drives, bearings, valves, shaft collars, couplings, and other power and fluid transmission components. The company, founded in 1877, is headquartered in Charlotte, NC, and meets International Organization for Standardization (ISO) standard 9001:2008 standard.

Fun with gear ratios
Fun with gear ratios
Academy of Fine Arts, Saturday class, Gaithersburg This is one very cool way to learn about gear ratios!
Specialized Hard Rock Fixiemobile
Specialized Hard Rock Fixiemobile
Fixie, front brake only, heavy ass frame, and drop bars = a lot of fun!
bike gear ratios chart
bike gear ratios chart
Abu Garcia 6500C3 Ambassadeur C3 Baitcast Round Reel (3 Ball-Bearing, Gear Ratio 5.3:1, Capacity 14/245)
AMBASSADEUR® C3 Baitcast Reel The Best-Selling Baitcaster Ever, Smooth casting action of two stainless steel ball bearings, Stainless steel roller bearing delivers the solid hook setting power of IAR, Right and left hand models Six pin centrifugal brake, Chemical nickel coated level wind system, New Carbon Matrix drag.

One of the best-selling baitcast reels of all time, the Abu Garcia Ambassadeur C3 round reel is valued throughout the world for its durable construction and smooth performance. Round baitcast reels incorporate a free spool baitcast design that allows for superior accuracy and long-distance casting. The design helps you fish with confidence, knowing you have a stainless-steel roller bearing to deliver instant anti-reverse hook-setting power. The C3 also includes such features as an ultra-smooth Carbon Matrix drag system; a 5.3:1 gear ratio; a chemical nickel-coated level-wind system; and a six-pin centrifugal brake. This version of the C3 offers a right-handed retrieve.

Gear ratio: 5.3:1
Inches per turn: 25.5
Retrieve speed: Standard
Spool capacity (mono): 14 pounds/245 yards
Spool capacity (braid): 30 pounds/330 yards
Hand retrieve: Right
Max drag: 15 pounds
Weight: 11.3 ounces
About Abu Garcia
Originally a watch factory, Abu Garcia was founded in Svangsta, Sweden, near the Morrum River in 1921. Founder Carl August Borgstrom was a clever craftsman with a talent for light precision engineering. The company originally manufactured pocket watches, telephone timers, and taxi meters until World War II, when the demand for taxi meters sharply declined. Undaunted, Abu Garcia redirected its skills toward the development of precision fishing reels, eventually receiving the honor of being chosen "Purveyor to the Royal Swedish Court"--a distinction bestowed upon a select group of manufacturers who consistently exceeded the court's high standards of quality and craftsmanship. Abu Garcia remains firmly committed to maintaining its industry leadership position by providing anglers everywhere with the highest-quality, most-innovative products.