amjad bhai I think thats not quite true in real, long tour on a bike like CBR is going to be a shoulder killer secondly there is a massive difference b/w power and torque of both bikes as I see CBR will be set back from the very first gear and will never be able to catch up with inazuema, CBR250 is a better comparison...
Just For Reference (and this is a comparison of Deluxe CBR150 with StandardGW250 becuase standard CBR 150 has even more poor results) :
[TABLE="class: tbl-compare, width: 100%"]
<tbody>[TR="class: headerSpecs"]
[TH]Engine(CBR150 <> GW250)[/TH]
[TH][/TH]
[TH][/TH]
[/TR]
[TR]
[TD="class: headerSpecs"]Displacement (cc)[/TD]
[TD]149[/TD]
[TD]248[/TD]
[/TR]
[TR]
[TD="class: headerSpecs"]Cylinders[/TD]
[TD]1[/TD]
[TD]2[/TD]
[/TR]
[TR]
[TD="class: headerSpecs"]Max Power[/TD]
[TD]13(which is wrong it is 17BHP)[/TD]
[TD]24 HP
[/TD]
[/TR]
[TR]
[TD="class: headerSpecs"]Maximum Torque[/TD]
[TD]12[/TD]
[TD]22 (Almost Double acceleration)[/TD]
[/TR]
[TR]
[TD="class: headerSpecs"]Bore (mm)[/TD]
[TD]63[/TD]
[TD]53[/TD]
[/TR]
[TR]
[TD="class: headerSpecs"]Stroke (mm)[/TD]
[TD]47[/TD]
[TD]55[/TD]
[/TR]
</tbody>[/TABLE]
[TABLE="class: tbl-compare, width: 100%"]
<tbody>[TR]
[TD="class: headerSpecs"]Top Speed[/TD]
[TD]134 (Average of 5 RUNS)[/TD]
[TD]155 (Average of 5 RUNS)[/TD]
[/TR]
</tbody>[/TABLE]
Ref:
Specs Comparison - Honda CBR150 R Deluxe vs Suzuki Inazuma 250 Standard
of course GW250 weight much more then light weight CBR but when a power torque of as high as 22 is available its not going to be any problem ... you can consult other international bike Portals for comparison all say CBR250 is comparable I think comapring a CBR150 is Zyadati if you know what I mean its like comparing a CG with a 70
... 
now think about their pricing and boil your blood looking at CBR!