Stroked engines are not necessarily known for shifting faster in motorcycles. The stroke of an engine refers to the distance the piston travels within the cylinder from top dead center (TDC) to bottom dead center (BDC). It is one of the factors that determine the engine's displacement and can influence its power characteristics.
The speed and ease of shifting in a motorcycle depend on various factors, including the design and efficiency of the transmission, clutch system, gear ratios, and the rider's technique. Here are a few reasons why some motorcycles may feel like they shift faster:
Shorter Gear Ratios: Motorcycles designed for quick acceleration often have shorter gear ratios, which means the gears are closely spaced. This allows the engine to stay within its optimal power band during shifts, minimizing the drop in engine RPM and providing a smoother and quicker transition between gears.
Quick-Action or Slipper Clutch: Some motorcycles are equipped with quick-action clutches or slipper clutches. Quick-action clutches have a lighter pull at the lever, making it easier and quicker for the rider to disengage and engage the clutch. Slipper clutches, on the other hand, help prevent rear-wheel lock-up during aggressive downshifting, enabling faster and smoother shifts.
Improved Transmission Design: Advancements in transmission design, such as precise gear engagement, reduced friction, and improved shift linkage, can contribute to quicker and smoother shifting. These improvements minimize the time required to engage the next gear and enhance the overall feel of the shifting process.
Rider Technique: Experienced riders who are skilled in executing quick and precise gear shifts can make the shifting process feel faster. They may have developed techniques such as preloading the shifter, applying consistent force, and coordinating throttle control and clutch engagement to achieve faster shifts.
It's important to note that the perception of shifting speed can also vary depending on the individual rider's experience, familiarity with the motorcycle, and their ability to perform smooth and efficient gear changes.