KUROKO is a special tool used to tighten and loosen the bolts that secure the chainring and crank. When tightening or loosening the chainring bolts, KUROKO's two claws firmly grip the groove on the back of the chainring bolt to prevent it from rotating.
Insert a 6mm hex wrench into the hex socket on the KUROKO. We recommend using a short head hex wrench, such as the RUNWELL STEX , as this handle provides stable operation. The protrusion in the middle acts as a guide, ensuring smooth installation. Because it is a screw type, if the protrusion becomes clogged and prevents installation, you can remove it by turning the protrusion.
KUROKO is a special tool used to tighten and loosen the bolts that secure the chainring and crank. When tightening or loosening the chainring bolts, KUROKO's two claws firmly grip the groove on the back of the chainring bolt to prevent it from rotating.
Insert a 6mm hex wrench into the hex socket on the KUROKO. We recommend using a short head hex wrench, such as the RUNWELL STEX , as this handle provides stable operation. The protrusion in the middle acts as a guide, ensuring smooth installation. Because it is a screw type, if the protrusion becomes clogged and prevents installation, you can remove it by turning the protrusion.
