For model year 2014 the bike was totally redesigned making it lighter, slimmer, and better handling than the previous generation.

2019 bought further changes to overall improve weight distribution including a new swingarm, linkage, and shock absorber with a new airbox, fuel tanks, and seat.

There were also changes to the Akrapovic exhaust making it shorter and lower as well as increased power coming from a revised cylinder head, new fuel injection system, and new transmission.

KTM produced badge-engineered variants of the bike for its subsidiary brands: the Husqvarna FR450 Rally from 2021 to 2024,[2] and the GasGas RX 450 Rally from 2022 to 2024.

[3] Due to on-going financial problems for the company, KTM ceased production of the derivative models for 2025, entering bikes only under the parent brand.