The Taida Racing standard stroke 57.8 mm crankshaft is a high-quality aftermarket engine part designed for GY6 125cc to 150cc engines, such as the one fitted to the Honda Ruckus GY6. It directly replaces the original crankshaft while offering a more robust construction and tighter machining tolerances, which improves:
rotational stability
durability under load
bottom-end longevity
overall engine performance
The 57.8 mm stroke is the standard stroke for GY6 125cc to 150cc engines. This means that the internal geometry of the bottom end, connecting rods, pistons, and engine dynamics remain compatible with the original while benefiting from a stronger and better-balanced part.
Taida designed this crankshaft to withstand daily use, high loads, and sustained engine speeds under a variety of conditions.
