ZTTO aluminum crank cover screws in black provide a practical upgrade for mountain bikes. Made from aluminum alloy, these screws secure the crank and chainring cover with a clean, smooth finish. Use them to replace worn or damaged crank cover screws on hollow discs, improving stability and protecting parts during rides and maintenance. Material: Aluminum alloy for high strength and corrosion resistance. Finish: Black anodized coating for durable, corrosion protection. Thread options: M18, M19, and M20 to fit common hollow discs and configurations. Compatibility details: M18 fits Prowheel hollow discs, FS.A discs, and older FC-4500/FC-5600 road discs; M19 suits ZTTO and IXF; M20 covers Shimano sets like M4000, M590, M596, M661, SLX, XT, XTR. Installation: Easy to install and helps distribute load to reduce potential damage during maintenance. Design: Lightweight and compact with a smooth, anodized finish.
Light specs: lightweight aluminum alloy provides a favorable strength-to-weight balance; black anodized finish resists corrosion. Fit: Select the correct thread size (M18, M19, or M20) to match your crank and disc model for proper seating.
Read
more
less