Progressive Rear Shock Spring

Its progressive design allows for a supple top half that easily absorbs small bumps and road irregularities, while the bottom half becomes more rigid to prevent bottoming out on larger impacts. This contrasts with traditional linear springs, which can be too stiff at the top and too soft at the bottom, leading to a less optimal ride. This rear spring is designed to fit a range of Yamaha MT-09 models, including the MT-09 Tracer 900 (2015-2019), Tracer 900 GT (2018-2019), MT 09 (2017-2019), and MT 09 SP (2018-2019). The benefits extend to shorter braking distances, improved balance and comfort, easier cornering, and enhanced grip in both dry and wet conditions. It is important to note that the Hyperpro catalogue indicates that the SP version of the MT-09 (model years '21-'22) is not compatible with certain springs, though this specific MPN (SP-YA09-SSB015B) is listed for the MT-09 SP ABS from 2018-2019 and other MT-09 variants. Always verify fitment for your specific motorcycle model and year.