2-piece design double-ring 9-speed chainset from the excellent value Sora range. SG-X chainrings feature strategically placed chain pick-up pins and tooth profiles to ensure fast and positive shifting. The 2-piece design allows the bottom bracket bearings to be spaced wider apart (outboard the frame) or press fit 86.5mm, enabling the use of larger bearings and an increased axle diameter. This offers easier installation, adjustment, and maintenance. Compatible with Hyperglide (HG) chains. Features aluminium crank arms and an aluminium outer chainring with a hard-wearing steel inner chainring. Compatible with 9-speed drivetrains. Available in sizes 165mm 50/34T, 170mm 50/34T, and 175mm 50/34T, in GREY.