SRAM XX T-Type TQSteel 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 Attributes Material Aluminum Steel BCD Direct Mount Chainring Comp. TQ Narrow Wide Design X Sync 2 Speed 12 Primary Color Silver
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