Very light, high quality CNC milled 1-speed chainring for 110x4 INspider MTB Powermeter. The ROTOR 110x4 1x MTB chainrings are available in oval and round with 34,36 and 38 teeth. The ROTOR 110x4 MTB chainrings can be combined with all modular ROTOR MTB cranks via the ROTOR INSpider, i.e. KAPIC, KAPIC Carbon, Hawk and Raptor. Modular ROTOR MTB cranks can be adapted with different axle widths to the respective chain line (e.g. Boost). Some combinations require an extra spacer kit.