The WORKS Pro Launch Start Device Red, model 12-339, is a spring-less start device designed to provide positive engagement and consistent release. Its “easy set by rider” start trigger supports convenient operation, while the CNC-machined construction uses aircraft-grade aluminum for a lightweight complete assembly weighing 50 grams.
This start device fits 2016, 2017, 2018, 2019, 2020, 2021 and 2022 Kawasaki KX450F models, the 2021 Kawasaki KX450X, the 2022 Kawasaki KX450X, and the 2023 Kawasaki KX450F. Confirm your motorcycle model and year against the listed fitment before installation.
The assembly features a laser-etched logo and is engineered, manufactured and assembled in the USA. Installation materials include a custom drill guide template, a countersinking tool and detailed instructions with large step-by-step photos. Manufacturer part number: 12-339. Vendor part number: 12-339.
Features:
- Spring-less design delivers positive engagement and consistent release
- Easy-set-by-rider start trigger
- CNC machined from aircraft-grade aluminum
- Lightweight complete assembly weighs 50 grams
- Fits select Kawasaki KX450F and KX450X models from 2016 through 2023 as listed
- Includes a custom drill guide template and countersinking tool
- Detailed installation instructions include large step-by-step photos
- Laser-etched WORKS logo
- Engineered, manufactured and assembled in the USA
- U.S. Patent Nos. 8,727,081 and 9,394,963
Fitment:
2016 Kawasaki KX450F
2017 Kawasaki KX450F
2018 Kawasaki KX450F
2019 Kawasaki KX450F
2020 Kawasaki KX450F
2021 Kawasaki KX450F
2021 Kawasaki KX450X
2022 Kawasaki KX450F
2022 Kawasaki KX450X
2023 Kawasaki KX450F
2023 Kawasaki KX450X