For 12-speed, Aluminium Direct Mount, with Powermeter, Set Number of teeth 33, 46 Type Article Fastening Direct Mount Group affiliation SRAM Main color black Secondary color silver Rear gears 12-speed Front gears 2-speed This SRAM Red AXS Powermeter kit offers the ultimate integrated power measurement, adding Quarq technology to the one-piece chainrings for the lightest, stiffest, and most accurate power package available. A 13-tooth difference on all chainring combinations ensures precise shifting in every setup, as well as a less dramatic change in cadence when shifting up. X-Range gearing technology offers wider range and smoother gear progression. The power meter is fully integrated into the chainring for lower weight. Power measurements are accurate to +/-1.5% and are unaffected by weather conditions. Measures right and left leg power balance. For sharp and accurate front shifting. Unique chainring shape results in a lighter, stiffer, more durable unit. Sram Article number: 735576 EAN code: 710845904738 Supplier number: 00.3018.387.000 Retail packaging: Yes