Taylor Nichols is no small gherkin on the pickleball court. During a recent weekday match at Chicken N Pickle, a new sports and entertainment complex in the blink-and-you’d-miss-it town of Webster, halfway between Houston and Galveston, the 33-year-old Fort Worth native zipped around the court, dinking and lobbing and backhanding the ball in a furious nine-hit rally with his opponent.Pickleball is Nichols’s bread and butter, and he dominates most matches he plays. Although this contest unfolded as most do in the booming recreational sport—including all of those earsplitting cracks, thwacks, and pops—there was one key difference: Nichols played from a sports wheelchair, a souped-up ride with intimidatingly angled wheels and Evel Knievel–red spokes.Before becoming enamored with all things pickleball, Nichols was an able-bodied professional motocross…