The KTM 450 SX-F is KTM's 450cc motocross bike, a regular championship winner in AMA Supercross and the MXGP world championship. It uses a single-overhead-cam 450cc single in a chromoly steel frame, with WP suspension.
Electric start became standard in 2013, and later generations brought lighter engines, new frames and launch control. It is a closed-course competition machine. Rivals include the Honda CRF450R, Yamaha YZ450F and Kawasaki KX450.
| Year | Photo | Engine | Power | Weight | Seat | Fields |
|---|---|---|---|---|---|---|
| 2027 | ![]() |
449.9 cc | 63 hp | 103 kg | 958 mm | 37 |
| 2026 | ![]() |
449.9 cc | 63 hp | 103 kg | 958 mm | 39 |
| 2025 | ![]() |
449.9 cc | 63 hp | 103 kg | 958 mm | 43 |
| 2024 | ![]() |
449.9 cc | 63 hp | 103 kg | 958 mm | 43 |
| 2023 | ![]() |
449.9 cc | 63 hp | 103 kg | 958 mm | 43 |
| 2022 | ![]() |
449.3 cc | 63 hp | 101 kg | 950 mm | 43 |
| 2021 | ![]() |
449.3 cc | 63 hp | 100 kg | 950 mm | 43 |
| 2020 | ![]() |
449.3 cc | 63 hp | 100 kg | 950 mm | 43 |
| 2019 | ![]() |
449.3 cc | 56 hp | 100 kg | 960 mm | 43 |
| 2018 | ![]() |
449.3 cc | 56 hp | 100 kg | 960 mm | 40 |
| 2017 | ![]() |
449.3 cc | 56 hp | 100 kg | 960 mm | 40 |
| 2016 | ![]() |
449.3 cc | 56 hp | 100 kg | 960 mm | 40 |
| 2015 | ![]() |
449.3 cc | 56 hp | 106 kg | 992 mm | 40 |
| 2014 | ![]() |
449.3 cc | 56 hp | 107 kg | 992 mm | 39 |
| 2013 | ![]() |
449.3 cc | 56 hp | 106 kg | 992 mm | 40 |
| 2012 | ![]() |
449.3 cc | 56 hp | 108 kg | 992 mm | 40 |
| 2011 | ![]() |
449.3 cc | 56 hp | 107 kg | 992 mm | 39 |
| 2010 | ![]() |
449.3 cc | 56 hp | 105 kg | 985 mm | 40 |
| 2009 | ![]() |
449.3 cc | 56 hp | 105 kg | 985 mm | 40 |
| 2008 | ![]() |
449.3 cc | 56 hp | 105 kg | 960 mm | 39 |
| 2007 | ![]() |
449.3 cc | 56 hp | 104 kg | 925 mm | 39 |