Considering your requirements, we'd recommend these three bikes for you: Triumph Scrambler 400 X, Husqvarna Vitpilen 250 and Bajaj Dominar 400, which you've already shortlisted. 

Of these three, the Dominar will be the most well-rounded and powerful machine, but it is also the heaviest. The Scrambler 400 is quite peppy inside the city and has the best suspension comfort. 

Last but not least, the Vitpilen 250 is going to be the sportiest feeling machine in terms of its chassis. But its 250cc engine will feel down on power compared to the other two, but will return more fuel economy on the flip side. 

A test ride of these three will help you make an informed decision.

Each bike you are looking at offers a very different user experience, so we'll list each bike's pros and cons so you can make an informed decision. 

The Husqvarna Vitpilen 250 is a KTM 250 Duke that is wearing a neo-retro suit and as such will be comfortable, engaging yet not overwhelming to ride and return good fuel economy too. The downside is that finding a dealer could prove to be an issue depending on where you're located. 

The Honda CB350RS is the slowest bike among the four you've shortlisted, but it is a proven machine offering comfort, good fuel economy and the promise of reliability in the long run. 

The Royal Enfield Guerrilla 450 is the fastest, most powerful bike here and will feel the most lively to ride thanks to its punchy engine and eager handling. Its sporty - read: stiff - suspension setup may not be to everyone's tastes, however. 

Lastly, the Bajaj Dominar 400 is the oldest bike here, and also the heaviest, but it packs in a powerful KTM-sourced engine and for highway touring will feel the most adept. However, its heavy weight will mean more effort inside the city.

We'd recommend you take a thorough test ride of all these bikes before you make up your mind. 

Both the Bajaj Dominar 400 and Triumph Scrambler 400 X are reasonably reliable and hassle-free machines, and considering they are both made by Bajaj, they should be light on the wallet in terms of maintenance. We recommend choosing the one you are more comfortable with and the one that has a service centre close to you. 

Coming to why we haven't reviewed the 2025 Dominar 400, that's because the bike is mechanically the same as when we reviewed it last in 2021, and the only tangible difference is the new LCD borrowed from the Pulsar NS400Z.

If your bike isn’t giving you any major issues, we’d advise you to keep it. The other options you mentioned will actually feel like a step down in terms of performance and comfort.

Since you also take your bike on highway rides, the Dominar 400 will feel miles ahead of the other two options you’ve shortlisted.