32 teeth, 1x, DUB, without bottom bracket, black 12-speed compatible, carbon crank arms with foam core, milled aluminum direct mount chainring, with two bashguards, Q-factor 174 mm, Wide axle (chainline 55 mm), Bluetooth and ANT+ wireless technology, power measurement on left crank arm, +/- 3% accuracy, waterproof to IPX7 standard, Lithium Micro AAA battery Number of chainrings 1 Type Item main color black Large chainring 32 T. Crank arm length 175.00 mm System compatibility 12-speed Bottom bracket DUB Variation set Sram article number: 733103 EAN code: 710845891861 Supplier number: 00.6118.639.000 Retail packaging: Yes