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2. Bicycle and motorcycle geometry - Wikipedia

   en.wikipedia.org/wiki/Bicycle_and_motorcycle...

   Wheel flop refers to steering behavior in which a bicycle or motorcycle tends to turn more than expected due to the front wheel "flopping" over when the handlebars are rotated. Wheel flop is caused by the lowering of the front end of a bicycle or motorcycle as the handlebars are rotated away from the "straight ahead" position.

3. Wheel sizing - Wikipedia

   en.wikipedia.org/wiki/Wheel_sizing

   Wheels with Asanti 28 in (710 mm) rims on a police Hummer H2 car. The wheel size is the size designation of a wheel given by its diameter, width, and offset. The diameter of the wheel is the diameter of the cylindrical surface on which the tire bead rides. The width is the inside distance between the bead seat faces.

4. Bicycle and motorcycle dynamics - Wikipedia

   en.wikipedia.org/wiki/Bicycle_and_motorcycle...

   The increase in lean angle due to a tire thickness of 2t can be calculated as ⁡ (⁡ ()) where φ is the ideal lean angle, and h is the height of the center of mass. [9] For example, a motorcycle with a 12 inch wide rear tire will have t = 6 inches. If the combined bike and rider center of mass is at a height of 26 inches, then a 25° lean ...

5. Caster - Wikipedia

   en.wikipedia.org/wiki/Caster

   However, the larger the diameter of a caster wheel, the higher the caster support arm must be. Either the base of a low-hanging object must be lifted higher above the wheels, or the casters must hang out to the sides straddling the low-hanging supported object. While rotating around the vertical shaft, swivel caster wheels sweep out a space.

6. Caster angle - Wikipedia

   en.wikipedia.org/wiki/Caster_angle

   Caster displacement moves the steering axis ahead of the axis of wheel rotation, as with the front wheels of a shopping cart. Caster angle moves the steering axis from vertical. [3] In automobile racing, the caster angle may be adjusted to optimize handling characteristics for a particular venue. This is all connected to the front wheels.

7. Gear inches - Wikipedia

   en.wikipedia.org/wiki/Gear_inches

   A bicycle with a 26-inch wheel, a 48-tooth chainring, and a cassette with gears ranging from 11 to 34 teeth has a lowest gear of 26 × 48 / 34 = 37 gear inches and a highest gear of 26 × 48 / 11 = 113 gear inches. For bicycles with 700c wheels, some cyclists quote gear inches based on a nominal wheel diameter of 27 inches, corresponding to the ...