I have decided on buying Yamaha R15 (Sunshine Red).

I wanted to know more on this bike
1) Most reviews says this bike gives around 40-45 kmpl
2) few dealers say that it does not give more than 35-40 kmpl.
3) I did take a test drive and felt body pain after taking the test
drive. May be due to the sporty style of the bike.
4) I am also worried if I develop backpain after continueous driving
R15 in city (bangalore).
5) Looking to know more inputs on this bike from the club.
6) Please do recommend your suggestion if its worth investing 1,12,370
(onroad in bangalore) for yamaha R15.
7) Most of the review do mention that yamaha after sales is not good.
I have few more queries before booking my R15
1) in yamaha india website I see Graphite black color which also looks
good but when I enquired in yamaha showroom they say yamaha has
stopped this color and now way we can get this color.

2) I had been to MSP autoworld in bangalore (yamaha dealer) for test
drive and had to come back three times as the vehicle had puncture and
the final time I was able to start my test drive and go a little
distance there was no petrol in the bike..
3) In some reviews I see that the bike drives very well after crossing
3000 rpm.
Below 3000RPM bike is bit sluggish, but its something one needs to
adjust while riding the bike, and once you have adjusted yourself
there should not be any problem.
Though the bike is doesn't torquey but pulls neatly at lower gears and
once Revolutions build up, it pulls pretty easily in the higher gears
too.
So, while riding the bike idea is to be above 3000RPM most of the
time, if you are not in first gear...
My question is would that be a high rev driving on a new bike as the
engine needs to be set in first 1000 kms?
4) This is my first yamaha bike which I have planned for and I need to
know the gear shifting ratios which I see in some sites which I don't
understand.
1st=2.833,
2nd=1.875,
3rd:=1.364,
4th=1.143,
5th=0.957,
6th=0.84
How would this technical details matter for normal driving?
Is there any specific speeds ratios for each gear?
5) Would anyone recommend upgrading headlights to HID on R15.. would
it drain the battery ?
6) Yamaha has provided performance upgrades on R15 like disc brakes,
LED lights and other accessories..
Has anyone upgraded the discs on R15.
7) Can we get the stickering done on the Racing blue of R15 done on
Sunset red as I did no like the stickering job on the new Red and
black color.