`- Switch was developed to reduce the cost of replacement chainrings, increase compatibility with new offsets and make the process of changing out chainrings much simplers\n- Quick Change allows chainring replacement in less than a minute with only a 4mm allen key. Simply loosen the bolts 2 turns and unlock the ring by rotating it 20 degrees and then pull it off the crank. Reverse these steps to install a new chainring.\n- Regular chainline = 49mm\n- Boost chainline = 52mm\n- Super Boost chainline = 56.5mm\n- Shimano chainline is determined by the crankset