Checkout the details of the new 2021 KTM 450SXF by Motocross Action Magazine. Josh Mosiman does a breakdown of what's new for the KTM. The biggest change for 2021 is the KTM Connectivity Unit.
Much like Yamaha, now you can fine tune your power deliver on your phone. Another impressive feature is that you can input your weight, height and skill level and the app will help you tune your suspension as well.
This is an excellent breakdown.