The Race Tech Shock Spring 5.2 kg/mm is a precision high-performance replacement spring designed to deliver consistent suspension performance for compatible Yamaha off-road motorcycles. Manufactured by Race Tech, this spring uses carefully selected materials and advanced processing to provide a high stiffness-to-mass ratio, helping maintain a lightweight design without sacrificing the spring rate required for demanding riding conditions.
This Race Tech spring is intended for riders and suspension technicians who require predictable shock response, improved chassis balance, and reliable performance during motocross, enduro, trail, and competition use. The 5.2 kg/mm rate is designed to support proper suspension setup when matched to the rider’s weight, riding style, motorcycle configuration, and terrain. For the correct spring-rate recommendation, consult the Race Tech suspension setup resources or a qualified suspension professional before installation.
Fitment includes the 2015–2019 Yamaha YZ250FX, the 2016–2018 Yamaha YZ450FX, the 2005 Yamaha YZ450F, and the 2024 Yamaha YZ450FX. Verify the motorcycle year and model before ordering to ensure proper application. This product is identified by Race Tech manufacturer and vendor part number SRSP 652852.
Features:
- 5.2 kg/mm shock spring rate for compatible Yamaha off-road motorcycles
- Race Tech precision high-performance spring construction
- High stiffness-to-mass ratio supports lightweight, responsive suspension performance
- Manufactured using high-quality materials and advanced processing
- Fits 2015–2019 Yamaha YZ250FX
- Fits 2016–2018 Yamaha YZ450FX
- Fits 2005 Yamaha YZ450F
- Fits 2024 Yamaha YZ450FX
- Manufacturer and vendor part number: Race Tech SRSP 652852
- Consult Race Tech suspension resources to determine the proper spring rate for the rider and motorcycle
Fitment:
2005 Yamaha YZ450F
2015 Yamaha YZ250FX
2016 Yamaha YZ250FX
2016 Yamaha YZ450FX
2017 Yamaha YZ250FX
2017 Yamaha YZ450FX
2018 Yamaha YZ250FX
2018 Yamaha YZ450FX
2019 Yamaha YZ250FX
2024 Yamaha YZ450FX