Sram nx 1x x sync mtb crankset gxpsrams 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 featuresmaterial aluminium 6000speed 11 speedchainline 49mmbottom bracket gxpaxle profile integrated 24 22mm gxp bc d 94mmchain sram power chain x1 11 speedweight 780gtechnolog