Diagram of normal sinus rhythm as seen on ECG. In atrial fibrillation the P waves, which represent depolarization of the top of the heart, are absent.
The wah-wah pedal is based on a simple concept but its effect is far more dramatic. Using a powerful filter to sweep through a broad frequency spectrum, the wah pedal boosts and exaggerates specific tones. Creating sounds that range from thick, flubbery bass to scratchy, stinging treble.
Stands for Shimano Pedaling Dynamics and refers to any of Shimanoâs clipless pedals though the terms SPD and spud are usually used to refer to Shimanoâs mountain bike clipless pedals. tension adjustment. A screw or bolt on the pedal that allows you to adjust how hard it is to get in and out of the pedal.lipless pedals keep your feet in place making it easier to pedal at a good cadence (the speed you pedal measured in revolutions of one pedal per minute; a good goal is 70 to 90rpm).