SRAM XX T-Type Chainring - 34t TQ Ebike Direct Mount SilverSteel and Aluminium construction. Compatible with TQ HPR 50 motor system Limited AeroGuard Compatability that fulfills EN 15194: 2017 standard Lockring not included Nominal Chain Line 55cm SRAM Model ID: CR XX TQ A1 TECH SPECS Teeth 34 BCD Direct Mount Chainring Comp. TQ Narrow Wide Design X Sync 2 Speed 12 Primary Color Silver Material Aluminum Steel