The BOR 1x 94 BCD has been developed for the SRAM X01, X1, NX and GX cranks with 1x drivetrains. Visually, the BOR chainring stands out from its competitors due to its flat design. This not only brings high stiffness to the chainrings, but also makes them the lightest on the market. The low weight is achieved by large cut-outs on the back. The revised version of the chainring is now also suitable for SRAM Eagle 12-speed drivetrains.
Another feature is the smooth narrow wide tooth design developed by BOR. In contrast to other narrow wide chainrings for 1x drivetrains, BOR slightly rounds each tooth in the drive direction to prevent chainsuck. For long durability, the surfaces of all BOR chainrings are hardened using the complex, multi-stage Double Surface Treatment process. In the first stage, the high-strength aluminium beam is subjected to a shot peening process that solidifies the surface and generates an increased residual compressive stress. The surface is then transformed into a hardened oxidation layer. This layer has the smallest pore size and 3 times the layer thickness of regular colored anticorrosion coatings on chainrings.
Smooth Narrow Wide
B.O.R. is the first European manufacturer to offer single sheets as an alternative to all three 1X hole patterns available from SRAM (76BCD, 94BCD, 104BCD). The CNC manufacturing process pays special attention to the grinding of the teeth. Since September 2014, however, B.O.R 1X rings are no longer produced according to the usual "narrow wide" principle, but according to our modified "smooth narrow wide" principle. Each tooth is also slightly rounded in the drive direction to prevent a possible "chain suck"!