TVS Ronin

Consider your usage and budget, bikes like the TVS Ronin and Royal Enfield Hunter 350 will be options we recommend you take a look at. Both are smooth and comfortable machines with neutral riders' triangles, which will be conducive to long stints in the saddle. 

You can even take a look at the Hero Xpulse 210 if you want a dual-purpose machine. It will be the most comfortable and capable of the three bikes we've suggested here. 

However, it is also the tallest, so if you are a shorter rider who isn't comfortable with tall bikes, then this may not be the best bet for you. 

Take a test ride of everything you shortlist before you make a decision.

Considering your usage and budget, you can look at bikes like the Royal Enfield Hunter / Bullet / Classic 350, Honda CB350 trio, TVS Ronin and the Hero Xpulse 210. All have spacious seats, comfortable suspension and have decent braking performance too. A test ride of all these machines with your wife sitting behind you will help you decide which is the right fit for you. 

Do bear in mind that making the switch from a scooter to a motorcycle will need good hand and foot coordination to operate the clutch and gear pedal.  We recommend you practice on a used bike first before taking the plunge. 

If you want to stay in the same displacement range as your Unicorn, you can look at the Bajaj Pulsar N160 and the TVS Apache RTR 160 4V. Both have great suspension, peppy performance and will return similar fuel economy to your Unicorn. 

If you want to make a step up, then bikes like the Royal Enfield Hunter / Bullet / Classic 350, TVS Ronin, and Honda CB350 trio will make for good commuting partners. These are bikes with upright, neutral ergonomics, plush suspension setups and torquey, smooth engines. Expect lower fuel economy in comparison to your Unicorn, however, by virtue of its larger displacement.

Lastly, the Hero Xpulse 210 is a wonderful do-it-all machine which will have the best suspension comfort of all the bikes listed here.

A test ride of all of these bikes will help you determine which one is best for you.

Considering your requirements, bikes such as the TVS Ronin, Honda CB300F, CB350 trio, Royal Enfield 350s, and Hero Xpulse 210 will serve you well. All are reasonably powerful bikes that can handle the weight of two-up riding and keep your passenger comfortable. 

A test ride of all these machines with your preferred passenger will help you make an informed decision.