Often asked: What Is Trail In Motorcycle?

How does trail affect motorcycle handling?

The bottom line here is that the more rake and trail we have, the more stable the bike will become, although both steering and maneuverability may suffer for it. Conversely, when rake and trail are reduced, the bike will steer quicker and become more maneuverable, though it’s usually at the expense of stability.

How do you measure bike trails?

To measure the trail of a bicycle, draw an imaginary line that extends through the steering axis (i.e. through the length of the headtube). Ignore the fork. Draw another line that passes through the front axle and is perpendicular to the ground. It will touch the ground at the center of the front tire’s contact patch.

What is a low trail bike?

“ Low – trail ” bikes, designed to carry cargo on the front of the bike, have a trail figure of less than 45mm. Mechanical Trail (Front Normal Trail ), describes the distance between the point where the front tire contacts the ground and the steering axis, measured perpendicular to the steering axis.

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What is rake on a motorcycle frame?

Rake is the angle, in degrees, that the steering head of the frame —not the forks—is tilted back from the vertical. For example, the rake angle on all the Harley-Davidson Touring models is 26 degrees.

How does trail affect handling?

Trail is a combination of the head tube angle and the fork rake and can be thought of as the tyre contact point trailing behind the steering axis. The short explanation is a small amount of trail equals a ‘fast’ handling bike, while greater trail equals a ‘slow’ handling bike.

What is the difference between rake and trail?

Rake (also called caster) is the angle of a motorcycle’s steering head of the frame (A). Trail (B) is measured in distance (inches or millimeters) between the point of the front wheel’s contact with the ground and a line drawn through the axis of the steering head.

Is rake the same as offset?

Fork Rake is also known as Offset, which more accurately describes what it is: the hub’s offset from the steering axis. Not to be confused with the curvature of the fork blades, which some people think of as “ rake ”. Straight blade forks can have plenty of offset.

How does bike geometry affect handling?

Bicycle geometry affects more than just fit. It drastically changes how the bike rides. Smaller headtube angles push the front wheel further out in front of the bike, providing less snappy steering, but a more stable feel at high speeds while descending.

What is the offset on a fork?

Simply put, fork offset, or fork rake, is the distance between the front axle and the steering axis – the imaginary line running straight through the midpoint of the steerer tube. Fork offset is linked to another important measurement: trail.

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Does lowering a motorcycle improve handling?

Even if you lower your bike by the book, handling can be affected to some degree. “When you lower a bike, you also lower its center of gravity, so it’ll handle a bit better in certain circumstances,” says Langley. “The negative is that your initial ground clearance is decreased.

How does rake affect motorcycle handling?

The smaller the rake angle, the less effort is required to turn the steering. Though, the motorcycle will be less stable in a straight line. Conversely, a larger rake angle requires more effort to turn but tends to make the motorcycle more stable at high speeds and helps maintain a straight course.

How do you measure fork rake on a motorcycle?

OFFSET: Centerline of the top steering neck to the centerline of the top of the fork tubes. RAKE: The angle in degrees of the steering neck from vertical. FORK LENGTH: The distance between the top of the fork tubes to the centerline of the axle. DIAMETER: The diameter of the front tire.