Custom crankset boasting the largest 53T of the chainring with integrated crank. Crank length is 6.7 inches (170 mm) standard size and is made of Forgit aluminum with a wing cross section for strength and aerodynamics. Only the outer side has a bash guard (chain guard) to reduce weight and avoid contact with the frame. Black finish and silver finish are available to coordinate with body parts. Made in Taiwan with high precision. This is a custom part that is the strongest of the front single at a low price.