Praxis Works Compact Road Ring Set 110BCD 34/50T BuzzDesigned for 5 arm standard, mid compact, compact and Cyclocross setups One Shot Cold Forging: exclusive manufacturing process creates a more complex tooth profile and provides more shifting features on a chainring which normal CNC manufacturing wont allow. Individual tooth profiles, alternating tooth angles, timed ramps and tactically placed shift pins are all jam packed onto a Praxis ring. Process creates a harder and tougher tooth overall