What to buy?
 

What kind of bike should i buy? the model please. What would be the most eco-friendly bike that i could purchase?

A used bike. :)

Welcome!

Depends on your driving needs. Generally speaking, you'd want to aim for the smallest displacement that will suit those needs. Of course, not all engines are equal, so it can't be completely simplified to that extent...

Tough to beat a bicycle recycled off a junk pile. That's what I do.

i don't know about that, i have found myself beating a number of junk bikes as i fixem

but for a motorcycle, if you have little experience
the simplicity and low cost of a gy6 150
make for a good start

if you want on the highway then you'll prly want a ninja 250 or a rebel 250
i like the rebel body
but the ninja twin is a really nice motor

A 125cc Honda motorcycle is very common in that part of the world. Anything you buy will benefit from a full body fairing system and gear changes. Compare the compression ratio and the weight of bikes you have available.

First question: where are you going to use the motorcycle? Mostly city? Road? Occasional need for some off-road aptitude?

Second question: is there any 125-150cc motorcycle available with electronic injection there in Sri Lanka?

Third question: are you going to carry a pillion passenger frequently or any overweight load?

1. Mostly its going to be for work, so in the city
2. Yes
3. No Im not going for an overweight load

ha ha:D get a Cub

So it seems like you won't actually need anything greater than 125 or 150cc.


What brands offer fuel-injected 125 to 150cc bikes there? Anything similar to the Honda CG 125 and 150 from my homeland Brazil? Or would you prefer something with liquid cooling? Even though there is a fierce debate surrounding advantages of either air-cooling or liquid-cooling when it comes to the overall environmental impact, the efficiency increase and an eventually more effective noise dampening inherent to liquid-cooling are hard to neglect.