hey stick, welcome. Ignore every other post, they're useless >XD

an fxr150 would be a good choice for general use, esp for a first timer. It's not a hot item like an rx-z, which means it's less likely to be stolen/vandalized. It's also very fuel efficient (40-50km/liter) and can hold 110kph easy.

I convoyed with one on my zz2 all the way from negeri sembilan to kl and it was fast enough to stay in the middle and left lane. It held 120-130 all the way, though I should've probably stayed below 120, the fxr was probably at 80% - 90% throttle already. The rider later took it to thailand and back, no problems.

Only issue is that the LCD screen starting to fade due to the age of most models on the road. Most owners just install aftermarket bicycle speedos and be done with it. Personally I'd hook it up with a tzm front end including speedometers and turn it into a gs150.

rm2.5k thereabouts would get you one in good condition.
for rx-z, rm2.2k is abit expensive... but I digress...

You might not run at maximum speed, but make sure you bike can run at the speed it could easily , otherwise there's nsomething wrong with the bike.  Trust me when you are on the road there are times when you depend your ride can max, and make sure you are in control when you run.  Not necessarily be mat rempit though.

my fxr150 fuel mileage on average is 30km/l. top speed is about 140km/h++, I did maintained full throttle with this bike while carrying another passenger from negeri sembilan till bangi, bike is still in good condition (didn't go pass red line as suggested by the motorcycle manual). So far the bike haven't break down on the road yet which is nice. Went to Kuantan before with average speed of 120km/h. The fuel is also quite big; 15 litres and it could last 400kms with one full tank.

the bike has nice brakes, if installed with steel braided brake hose and good brake pads, you can do stoppie anytime. LCD does fade, and it costs about RM580 for a new one, mine started to fade and I'm sad 

because of the standard front and rear disc brakes, when you're riding in the rain the brake will usually be weak because of the water from the rain accumulating of the disc brakes (also lowering the temperature of the brake disc). When you keep pulling hard the brakes, it will reach to a point where the brakes gain back the grip, thus the risk of tire lock which is dangerous.