Section 15B.5.6; Wording about pivot


Comments about this discussion:

Started

Background

Incorrect wording (to be checked by a native speaker).

Rule change proposal

Change

Twisting […] is also considered a pivot foot

into

Twisting […] is also considered a pivot

Justification

There is no notion of foot for this kind of pivot.

Comment

I think we need to update this section for clarity. If a rider begins by idling can they switch to twisting and vice versa (if so does twisting establish a pivot foot)?

Comment

Excellent question!

I think I consider twisting the same way as stand still. Then, it would make sense to allow a single idling period, possibly preceded and/or followed by stand still and/or twisting.

Indeed, this section needs to be discussed and enhanced.

Comment

Relatedly is there a definition of twisting?

Comment

Twisting is defined in the same section (15B.5.6):

Twisting, where the pedals stay at the same height, the tire stays in contact with the floor, and the rider moves the unicycle left and right is also considered a pivot foot, and therefore allowed.

Comment

:facepalm: A point of clarification with this definition: Is the requirement that the pedals are level or only that the position of the pedals doesn't change

Comment

Most people would do it with pedals that are level. But you're right that it is strange to enforce it. In fact, when Julien and I wrote "the pedals stay at the same height", we meant "the wheel is not rolling". Perhaps we should simply use the latter formulation. (In practice, one has to make slight rolling movements, to keep the forward/backward balance.)

Also, rather than "the rider moves the unicycle left and right", we should perhaps write "the rider rotates the unicycle left and right".

Comment

"the wheel is not rolling" sounds more logical to me than "the pedals stay at the same height". Also “rotate” sounds more logical to me than “moves”.


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