Please note that the item is only for aftermarket use, NOT OEM product. This adjustable kickstand is made of Q235 steel, much stronger than alloy aluminum. Its adjustable range is 0-3 inch (76.2mm), it can approximately extend 1''(25.4mm) longer than stock length and shorten 2''(50.8mm) than stock length. It is absolutely a must-have if you lowered your bike. Seven-hole design, flexible height adjustment of the product, no need to worry about the angle of inclination when parking the motorcycle. Bigger kisckstand shoe more stable support. Package included: 1 Set of Kickstand Aftermarket Fit For Yamaha YZF-R1 2015-2026.