I agree with you man...this is also evident from my calculations above..

Rear sprocket change will change the gearing by a lesser margin than the front sprocket change...

The only question is, can the unicorn's front sprocket be used directly on the Stunner without any shaving off of edges?

Also, would any modifications be needed in the chain for using the unicorn's front sprocket?

Just plug & play bro. I mean its a direct fit....!
You just need to adjust the chain for its play (i.e. 1 inch)

This is good to hear...

Stupid Honda Service Center Guys

This is what happened to me today..

Went to the HASS for regular servicing of my bike. I was waiting all these days to get the front sprocket changed and thought that it would be a good idea to get it changed at the time of regular service.

To my surprise, none of the service center guys were aware that the sprocket can actually be changed easily. They started giving me stupid reasons for not doing it. The head of the service center even told me that this would involve some welding job etc. I was like "What the hell!!"

Those morons called up their so called "senior mechanic" and asked him if it was possible. He simply refused

As if this was not enough, those morons told me that they won't sell the front sprocket separately and that the entire set (containing both the front and rear sprockets and the chain) had to be purchased. I was just dumbstruck!!

Those HASS guys are even fooling people by doing unnecessary repairs to their bikes and charging them insane amounts of money.

This is not expected from the authorized service centers.

Honda service centers SUCK !!

Same thing happened to me when i wanted HASS to change sprocket for me! They said its not possible, unicorn ka chiz unicorn mai hi lagega.
I just politely nodded & left for the Honda spare part dealer.
And that's the reason i changed the sprocket myself....

And you are dam right THEY love their customers 'cause we have money.... They make ignorant consumers pay for nothing....

They would go by the rules given by the Company. They are not supposed to change any parts other than the regular spares. For the matter, no company does modifications. Replacement of front sprocket with Unicorn's is a modification. It would affect the ideal performance of the bike and it would void the warranty of the bike.

You can do it off the record at an outside service center.

^^ I think you have a valid point bro..

The HASS people are not authorized to make any such mods....but I have seen them exploiting innocent and unaware people by asking them to pay for unnecessary stuff..

Today when I was at the service center, the SC guy asked a Shine owner to pay about 5200 Rs for some engine job which was probably something very petty since the engine of his bike sounded as it should. However, the SC guy convinced the Shine owner that there was some serious problem with his bike and a repair was immediately required. The bike owner agreed. I was listening to their whole conversation and was quite angry at the SC guy.

I preferred to stay out of the whole discussion.

This is a virtual loot by the SC guys !!

Anyway...I have now got the front sprocket replaced by a local mechanic. Got the sprocket from a local spare parts shop

I am enjoying the ride now more than ever before !! Vibrations have reduced and now I can ride at 60 Kmph consistently @ 5k rpm. Yippee !!

The sprocket cost me exactly Rs 74 as suggested by "Honda_CBF". Thanks buddy for the guidance, I really appreciate that

PS: Sorry about the long post.

You won't gain anything much !! Neither mileage nor power. It will take ages to reach the top speed. Bike won't have enough torque to pull well with a pillion. And I am sure you will soon want to revert back

I learnt it hard way

First of all, I have not noticed a major difference in the pickup of the bike after changing the sprocket. However, I could certainly notice a difference in the speeds at usual rpms. Initially my bike used to do 50 Kmph at 5000 rpm. Now it does 50 at 4500 rpm.

Also, the vibrations around the 60 Kmph mark are lesser now which was the main reason why I wanted the mod.

I also rode with a pillion after the mod and the bike could pull as usual. Not much difference there.

I'm happy as of now..I hope I won't feel the need to revert back..

Forgot to mention that I am not worried much about the mileage either. I used to get around 58 Kmpl but even if I get around 50 now, I'm okay with it..

i know its a mod & company policy of that kind and they should tell their customers about this instead of saying silly things.
I wonder why pro biking guys offer 20w40 oil for pulsar(s) which have to use 20w50......

[QUOTE=Shreeni0403;593281]
stunner is very under geared bike with short throws compared with other Indian bikes 'cause of this stunner's mileage & top speed will surely increase at the price of acceleration i.e. Around 5 second delay to touch 60. And anyone can redline it in any gear..
Cmahajan: hope you're enjoying the mod. And regarding your mileage it won't go down, don't worry.

Yes, Stunner is very short geared. I wonder why Honda compromises refinement and speed for initial acceleration which is not so useful after all. How many people who would like to drag race go for a Stunner anyway?? I think none

Yes I am enjoying the mod at the moment. Haven't calculated the mileage as of now but I had read somewhere on xbhp that the mileage may take a small hit which I'm fine with by the way..

Also, I don't think that the 0-60 time would increase by as much as 5 secs. That would mean that now my bike would do 0-60 in 5.2 + 5 = 10.2 secs. That is huge !! If that were the case, I would have noticed a HUGE difference in the initial pickup too which is not the case in reality..

Maybe the 0-60 time now would be around 7.5 - 8 secs approximately..

Sorry bro i think i was not clear with you at my previous post. With 5 sec delay i mean the worst case not usually. Think of heavy load or pillion or busted clutch etc. 0-60 in 10sec is disgusting for any bike!

Got it. Went for a long ride today on a good patch of road. Could not feel much power loss. Bike is doing good speeds now at usual rpms. Vibrations reduced but still present to some extent. A good mod nevertheless.