KCNC’s SL series chainring bolt sets improve upon their preceding model with several key improvements that add functionality and reduce weight. The most significant improvement is the addition of a user-friendly 8 mm hex fitting on the nut, greatly simplifying installation and removal. The bolt component features a larger 5 mm hex fitting which runs the full interior length of the bolt, reducing the likelihood of stripping out the tool slot. These chainring bolts are expertly machined from high quality 7075 aluminum and attractively finished in six color options. As a set of five nut and bolt pairs, they are designed for standard and compact road double cranksets, but are also compatible with most standard mountain cranksets.
To avoid accidental loosening, we recommend that KCNC chainring bolts be installed with a medium-strength threadlock compound. In the absence of threadlocker, light grease may be used. When using a torque wrench, tighten each chainring bolt to a maximum of 8 Nm (80 in-lbs).