Your question: What does Motorcycle rake mean?

Rake (also called caster) is the angle of a motorcycle’s steering head of the frame (A). … Think of it as how far the contact patch trails behind the steering axis. Too much trail makes a motorcycle difficult to turn; too little makes it unstable.

How is a motorcycle rake determined?

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.

How does rake affect 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 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.

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Does lowering a motorcycle affect the handling?

Effects on 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.

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.

What is reverse rake?

reverse rake is when the front of your car sits higher than the rear.

How does ride height affect handling?

Increased ride height: Raises CG, front roll center, and reduces rake. The change will shift weight to the rear, improving the grip of the tires at that end of the car and shifting the handling balance toward UNDERsteer and typically increase aero drag and increase downforce.

How does fork offset affect handling?

Offsetting the fork more (increasing offset) pushes the axle further in front of the head angle. … By reducing the fork rake (offset), the head angle remains the same for stability at high speed and down steep and rough trails, but the wheel is closer to the steering axis for better handling, especially at slower speeds.

How does wheelbase affect motorcycle handling?

In general, wheelbase affects a motorcycle’s handling and feeling of stability. Shorter wheelbases usually feel more lively in terms of cornering, but can feel less stable at high speed. Conversely, a long wheelbase will usually feel very planted when moving fast, but may feel slow to respond to steering inputs.

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What is a fork on a motorcycle?

A motorcycle fork connects a motorcycle’s front wheel and axle to its frame, typically via a yoke, also known as a triple clamp, which consists of an upper yoke joined to a lower yoke via a steering stem, a shaft that runs through the steering head, creating the steering axis.

What does trail mean on a bike?

Trail, or caster, is the horizontal distance from where the front wheel touches the ground to where the steering axis intersects the ground. The measurement is considered positive if the front wheel ground contact point is behind (towards the rear of the bike) the steering axis intersection with the ground.

What is rake and stretch on a motorcycle?

Stretch and Rake:

This repositioning may be done to change the handling characteristics of the motor-cycle, fit the frame to the rider, or more often than not, to give the motorcycle a particular look, i.e. long and low or a high neck.

Why do choppers have long forks?

They’re there to specifically limit the side to side travel of the front wheel in turns (and also limit just how tight you can turn) to keep the front wheel from flopping over.

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