Praxis Buzz Sport 110BCD chainring. The economical version of the standard Buzz series, the main difference being the weight of the sprockets. The Buzz ring series features cold-forged CNC-machined chainrings, which are harder and more wear-resistant than standard CNC-machined sprockets. This process also offers the advantage of easy application of LevaTime. LevaTime is a unique technique in which each tooth has its own unique shape, ensuring a chain can shift smoothly from the inner to the outer chainring. The Buzz Sport chainrings are available in 110BCD: 48/32, 50/34, and 52/36 tooth combinations. Suitable for 10-, 11-, and 12-speed chains. Comes with a replaceable chain catch pin. For optimal shifting performance, perfect for use with Di2, EPS, or eTap shifting systems. Compatible with mechanical and electronic shifting systems from Shimano, SRAM, and Campagnolo. Note: The 48/32 version is only suitable for Praxis 110BCD cranks; special bolts are required. The 48/32 version is not suitable for mounting on the older Praxis Turn model or on any other brand of crank.