Getting a 2-stroke machine isn't all that difficult, but you are right to worry about maintenance. While authorized dealers are unlikely to agree to service them, considering these bikes have been around for so long, you should be able to find a trustworthy local mechanic.Between the Suzuki Max 100 R and the Kawasaki KB100, the former will be easier to find service technicians for, as it was quite a popular machine owing to its hardy workhorse nature back in its time.And just so you're on the right track, the Hero Honda CD100SS was powered by a 4-stroke engine.

The Hero Xpulse 210 and the TVS Apache RTX 300 will be the two most comfortable bikes amongst the three you have shortlisted. Both have great suspension comfort and a neutral yet commanding rider's triangle, which will help you over bad roads and over longer distances.Take a test ride of both before you make your purchase.

Between the Honda CB350s and the Royal Enfield Classic 350, the Honda is our pick for being easier to use in the city, primarily because of one reason. It has a slip/assist clutch, which greatly reduces clutch effort in stop-and-go traffic. Otherwise, both the Classic and the H'ness are very evenly matched.It would be advisable to take a test ride of both before you make a decision.

Considering your needs, bikes like the Hero Xpulse 210 and the Royal Enfield Hunter 350 will fit the bill nicely. The Hero Xpulse 210 will feel more spacious and have better suspension comfort and fuel economy than the two machines.The Hunter 350 is a friendly standard neo-retro machine that can cruise comfortably on the highway with good comfort and decent performance. You can even take a look at the Royal Enfield Bullet 350 Batallion Black base variant, which will give you great comfort for two-up riding, and it will have enough highway performance for your needs.Take a test ride of all three before you go ahead with your purchase.