The Vero Pro offers the same great value and performance as the original, redesigned for 10 and 11 speed drivetrainsCold forged AL6061-T6 aluminum crankarmsCNC machined aluminum outer ring and heat treated chromoly inner ringDoes not include BB170x50/34110 SQR JISBLK120x4B751g2x10/11UPC/EAN/GTIN: 840031071835