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Shimano Pedaling Dynamics, commonly called SPD, is a design of clipless bicycle pedals and associated cleats first released by Shimano in 1990. [1] [2] The first model, PD-M737, was aimed at mountain biking enthusiasts who, prior to this, had to use toe clips and straps or "road" clipless pedals which clogged with mud and made walking very difficult in unrideable situations.
Those pedals, and compatible models by other manufacturers, remain in widespread use today. The cleat is engaged by simply pushing down and forward on the pedal, or, with some designs, by twisting the cleat in sideways. Then, instead of loosening a toestrap or pulling a lever, the cyclist releases a foot from the pedal by twisting the heel outward.
Boss has since released several pedals using COSM, including the FBM-1 '59 Fender Bassman pedal and FDR-1 '65 Fender Deluxe Reverb pedal, introduced at the Winter NAMM show in January 2007. All Boss compact pedals use a "buffered bypass" type of silent foot switching utilizing Field Effect Transistors (FETs) to avoid clicks and pops.
Further improvements to the MIDI specification included the control of modulation, pitch bend and aftertouch using a foot pedal, along with full System Exclusive (SysEx) capability. [5] The Pad-80 had a patch chain function that allowed a series of 32 patches to be arranged in any sequence, eight of these chains could be stored in memory.
A few of the bass pedals designed to be used with electronic or clonewheel organs have features that operate the upper manual keyboards, such as an expression pedal or swell pedal, which is a treadle-style potentiometer for controlling the volume; buttons to turn on or change the speed of a Leslie speaker, a rotating horn speaker in a cabinet; or program change buttons, which send a MIDI ...
Commercial elliptical trainer (rear drive version) Row of elliptical trainers at a gym (right) ElliptiGO trainers are elliptical but not stationary. An elliptical trainer or cross-trainer is a stationary exercise machine used to stair climb, walk, or run without causing excessive pressure to the joints, hence decreasing the risk of impact injuries.