Sram nx 1x x sync mtb crankset bb30srams nx 1x x sync mtb crankset gives you high performance at a great price the crankset features srams engineered x sync chainring and is built for complete chain control the thickness of the teeth is cnc machined to work seamlessly with the chains inner and outer links featuresarm material 6000 series aluminiumchain ring material aluminiumbottom bracket bb30boost 148 compatiblefully compatible with all sram 1x drivetrainsmost affordable fully fea