A "pedal stroke" refers to the motion your legs make while pedaling a bike or any other similar activity where you push down and pull up on the pedals. Full definition
My legs just didn't seem to have any power from almost the first pedal stroke. (peterattiamd.com)
The ECB system translates brake pedal stroke speed and pressure and generates the precise amount of combined electric regeneration and hydraulic pressure needed for virtually any driving condition. (autointell.com)
Optimized master cylinder and brake - caliper piston diameters contribute to a short, firm pedal stroke and excellent feel, while also helping to maintaining the power of the braking system. (hondanews.com)