frontspin and backspin files

General
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Here are two new skill files, for the frontspin and backspin, thanks to
Ken Fuchs. The earlier file I sent out for the frontspin should have been
for the spin.

Beirne

File frontspin:

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Frontspin:

  1. While riding backwards, slowly turn the upper body 90 degrees left (or right)
    relative to the wheel’s direction.
  2. Quickly twist the upper body 180 degrees (the action), causing the wheel to
    pivot on its vertical axis 180 degrees in the opposite direction (the
    reaction).
  3. Recover from the 180 degree wheel snap by slowly returning the upper body to
    a normal riding position from its 90 degree right (or left) position.

Notes:

A frontspin is defined as riding backward, quickly rotating (snapping) the
wheel 180 degrees about the vertical axis, and then riding forward. This
must all be done without any perceptible change in speed or direction (of at
least the rider’s upper body [except for twisting which is required to
perform the skill]).

Ideally the path of the wheel when doing a frontspin is a straight line, but in
actual execution, the path contains a slight “dip” where the wheel changes
directions. So the actual path is more like the line below: ________ _______
except the “dip” (/) is actually two matching / smooth curves which come to a
sharp point at the tip. The “dip” can deviate from a straight line by as much as
0.5 meters, but should be much smaller (Ask your examinator how small).

Ken Fuchs kfuchs@winternet.com

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File backspin:

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Content-Length: 1329

Backspin:

  1. While riding forwards, slowly turn the upper body 90 degrees left (or right)
    relative to the wheel’s direction.
  2. Quickly twist the upper body 180 degrees (the action), causing the wheel to
    pivot on its vertical axis 180 degrees in the opposite direction (the
    reaction).
  3. Recover from the 180 degree wheel snap by slowly returning the upper body to
    a normal riding position from its 90 degree right (or left) position.

Notes:

A backspin is defined as riding forward, quickly rotating (snapping) the
wheel 180 degrees about the vertical axis, and then riding backward. This
must all be done without any perceptible change in speed or direction (of at
least the rider’s upper body [except for twisting which is required to
perform the skill]).

Ideally the path of the wheel when doing a backspin is a straight line, but in
actual execution, the path contains a slight “dip” where the wheel changes
directions. So the actual path is more like the line below, ________ _______
except the “dip” (/) is actually two matching / smooth curves which come to a
sharp point at the tip. The “dip” can deviate from a straight line by as much as
0.5 meters, but should be much smaller (Ask your examinator how small).

Ken Fuchs kfuchs@winternet.com

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Beirne Konarski | Subscribe to the Unicycling Mailing List bkonarsk@mcs.kent.edu
| Send requests to unicycling-request@mcs.kent.edu “Untouched by Scandal” |
Unicycling Web Page:
| http://nimitz.mcs.kent.edu/~bkonarsk/

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