The distance between where the line from the steering axis meets the ground and the line from the front contact patch is trail, measured in both inches and millimeters. Positive Caster. There are 3 types of caster angle: Positive Caster. The motorcycle according to claim 9, wherein when the caster angle θ is 20°, a trail length (mm) obtained from an offset length (mm) and the caster angle θ is at least 100 mm. If it leans forward, it’s negative caster. The angle between the drawn line and vertical is the caster angle. Offset is a look at two axes: the axis of the steering head and the axis of the fork tubes. Angular displacement of the steering axis from the vertical axis of a steered wheel in a car, motorcycle, bicycle, other vehicle or a vessel, measured in the longitudinal direction. Camber angle could be either positive or negative depending on the design of the chassis and suspension system. 11. Of course, there is a very finite and limited amount you can perform either function. Because of the caster angle, camber angle of front tire is higher than the rear tire which requires the front tire cross sectional profile to be more circular. Yamaha V-star 1300 Tourer. With a 59.8-inch wheelbase and a 30-degree fork angle, the Rebel 1100 achieves a cruiser style that belies its sporting capabilities. As you’ve likely seen on those wild biker build-off shows, some cruisers can have huge rake angles that are downright ridiculous. A general measurement on 8-inch wheels is about 1 … A positive caster angle produces a self-centering action of steering, and gives a steering feedback for the driver in straight line. The caster in this vehicle is read four degrees plus or minus one half degrees (.5°). Complicating this still further is that the lateral forces at the tire do not act at the center of the contact patch, but at a distance behind the nominal contact patch. Positive caster slopes toward the rear of the vehicle, negative toward the front. Free postage. Steering. We use cookies to improve your experience on this website and so that ads you see online can be tailored to your online browsing interests. The KLX300 features a box-and-tubular-section high-tensile steel perimeter frame that creates a slim, lightweight package, which offers maneuverability and excellent handling on- or off-road. Aside from the internal and external changes, the standard bike is available in a new colour that has one of the weirdest names ever. Most motorcycles don’t come with fancy concentric head stock inserts or adjustable triple clamps. It sometimes helps to think of caster angles like the forks on the front wheel of a motorcycle. The caster angle or castor angle is the angular displacement of the steering axis from the vertical axis of a steered wheel in a car, motorcycle, bicycle, other vehicle or a vessel, measured in the longitudinal direction. A 26.7- degree caster angle and short wheelbase provide quick handling characteristics, while the high rigidity frame ensures a composed ride. A positive caster angle is shown with the front of the vehicle being to the left. PMD Products Camber Caster Gauge and Wheel Alignment Rack Rim Clamp Mount Tool for 11" to 25" Rims £114.95. A good starting point for this is 30 mm behind the nominal contact patch. But if we accelerate too early, the fork extends as we’re already running wide, making it harder to turn. Known as the angle between the vertical access and the rotational access. Some of the most important geometric consideration on a motorcycle are the . Note how far the fork tubes are sticking out above the triple clamp. 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