Suzuki V-Strom SX OBD-2B

The Suzuki V-Strom SX may be a dated machine, but it is a great option for someone who wants a relaxed, reliable and fuel-efficient touring machine. 

If you are open to considering other form factors aside from the adventure bike style, there are some other machines that will fit the bill for your usage as well. In the neo-retro space, the TVS Ronin, Honda CB350 models and Royal Enfield Classic / Bullet 350 will be good options to consider with their relaxed riding triangles, smooth and torquey engines, as well as plush suspension setups. 

These bikes won't be as fuel-efficient as the V-Strom, but the drop isn't going to be too drastic either. 

Take a test ride of these bikes before you make a decision. 

All the bikes you are considering are great options and have reasonable servicing costs. The CB350 H'ness is a relaxed, comfortable retro bike with a smooth, torquey engine. The Honda NX200 is a tall, quasi-ADV based on the Hornet 2.0 street bike, which means it will be suitable for daily use. 

The Gixxer and V-Strom SX from Suzuki are refined, punchy machines that are also fuel-efficient and quite reliable. 

A test ride of all 4 is in order so that you can decide which is the best option for your needs. 

Since this will be his first bike, we recommend getting a bike with dual-channel ABS (at the very least) in terms of safety features. Keeping his physique in mind, bikes like the Hero Xpulse 200 / 210, Royal Enfield Bullet / Classic 350, TVS Ronin, Honda CB350 trio and Suzuki V-Strom SX will be good options to consider. 

Do take him for test rides of all of these so he can decide which one fits him best. 

As far as touring is concerned, both the Hero Xpulse 210 and Suzuki V-Strom SX make for good machines that will be up for the job. But when it comes to off-road riding, the Xpulse has a clear advantage over the V-Strom with its 21/18-inch wire-spoke wheels and long-travel suspension. Choosing between the two will boil down to exactly how much off-roading you're realistically going to end up doing. We'd also recommend a test ride of both to see which machine fits you best. 

The Triumph Speed T4 is an excellent city machine, and you can also cruise on the highway at 100-110kph comfortably. It offers decent suspension comfort and will be a good fit for a one-bike garage. 

The Suzuki V-Strom SX will have more spacious ergonomics and better wind protection on the highway, but its smaller engine will also limit your comfortable cruising speed to 90-100kph. On the other hand, it will also deliver improved fuel economy in the city. 

You can definitely consider the Suzuki V-Strom SX, but considering your build, something lighter, lower and more manageable will make more sense. The Gixxer 250 sporty naked is a good alternative, considering you're already inclined toward the V-Strom, and it will be a reliable, comfortable and fuel-efficient machine.