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**rossiter** · 11-03-2008, 11:15 PM

My take on this.. it is the easiest (relatively) and fastest way to get a bike to bump up it's performance specs. There is only so much you can do with regards to actual horsepower gains. Either the company can reduce the transmission losses (extremely tough), or slim down and shift the CoG around for excellent handling characteristics.

Take for example the new R1. It is not that much lighter than the old one, but where it gains over the 2008 R1 is the CoG and the weight distribution which is slightly more forward. A smaller footprint and dimensions is also fantastic for aero, which will make it fly in mid-high speed corners.

The R1 and the CBR are very similar in terms of development philosophies. But Aprilia have pulled out a stunner alright. I am very very impressed by the RSV, and I think it'll put the other bikes in the shade just by the weight advantage alone.

PS: Editing the thread title as the word "Japs" is a derogatory term used to describe the Japanese. Thread starter, please note.

**Streetfighter** · 11-03-2008, 11:54 PM

something to consider with after market exhausts; most modern bikes run lean for emissions reasons. when you open up the flow of the exhaust or provide more air by using special filters it will lean the afr further. some ecus are self adjustin(busa?) but most will need a remap or a piggyback system like a pcIII and a map for your brand of pipe, a custom map on a dyno would be even better.

moral of the story.... new pipes will not give you more power but will shave off considerable weight and sound good.

ross, is the rsv a twin? and what does cost? I suspect it is a twin and costs significantly more than japanese supersports. that would explain the weight advantage.

SF

**rossiter** · 11-04-2008, 12:06 AM

@SF: It's a V4 man. I would think it costs as much as a 1098, but will be the new big daddy of the exotics (so to speak).

Another track focussed bike

**csgup1** · 11-04-2008, 06:49 AM

theyve done out with the underseat exausts coz of what rossiter said. the cog. with that much weight that high up under the seat makes a fair bit of difference to how a bike handles. my mate has a 675 and he swapped the can for and after market one which was about 6 kilos lighter . said there was instant difference in how the bike truned in .

as for the new models. ive seen enough dyno figures that prove that a full pipe and a tune for the pipe will unleash all those hidden horses. not that you need any more.

**Streetfighter** · 11-04-2008, 12:33 PM

Originally posted by rossiter View Post

@SF: It's a V4 man. I would think it costs as much as a 1098, but will be the new big daddy of the exotics (so to speak).

Another track focussed bike

if it costs that much then it better be lighter, better and faster

SF

Originally posted by csgup1 View Post

theyve done out with the underseat exausts coz of what rossiter said. the cog. with that much weight that high up under the seat makes a fair bit of difference to how a bike handles. my mate has a 675 and he swapped the can for and after market one which was about 6 kilos lighter . said there was instant difference in how the bike truned in .

as for the new models. ive seen enough dyno figures that prove that a full pipe and a tune for the pipe will unleash all those hidden horses. not that you need any more.

Even just end cans with a correct map will be good, a custom map even better and a rolling dyno run with airflow as a parameter the best but this is very rare.

A full exhaust system is of course better than just end cans, but it's pretty expensive. I can't justify the costs, unless I go racing with the bike.

SF

The new R1 has still got those underseat thingies. I hate it!

**rossiter** · 11-04-2008, 01:02 PM

SF: More or less why I am not going in for a full exhaust system. I'd rather buy something that would make my R1 handle better or some track specific part. Don't really need the extra power, unless there's a track that will open tomorrow, which has a 2 km straight

Slip ons or for that matter an after market Y-pipe is tempting me because:

1) Almost any slip on, is lighter than the stock cans.
2) Eliminates the cat which will make the underseat sperm killing heat go away

And yeah the new R1 surprised me with the underseat exhausts, and which are heavier this year because of the tighter emission controls in place.

**Streetfighter** · 11-04-2008, 02:52 PM

Do you go to the track often? Have you been to the chennai track; how long is the straight there? I've heard a 600 or 750 is better suited for that track. I'm planning to take my MT there sometime early next year.

SF

**rossiter** · 11-04-2008, 03:33 PM

SF: Let's take the discussion here:

xBhp.com : The Global Indian Biking Community

http://www.xbhp.com/talkies/superbike-imports/5546-general-sbk-discussion-thread-6.html

**nitrosatya** · 11-06-2008, 09:55 AM

Just check out this image and look how the bike is slimmed down in the next generation.

**augusta** · 11-06-2008, 10:01 AM

^^ if im not very wrong , if it continues like this then one day we wont may be able to see supewrbikes on our roads...just the chassis withe slimmy tyres and the engine...

**46 the Greatest ever** · 11-06-2008, 11:58 AM

No offense, but people are simply over-reacting about this whole slimming down thing, nothing else!!!

**nitrosatya** · 11-06-2008, 07:08 PM

Originally posted by 46 the Greatest ever View Post

No offense, but people are simply over-reacting about this whole slimming down thing, nothing else!!!

If u are a regular superbike rider it might not mean much to you;since a rider does not feel a design philosophy.

This PoV is only from a viewer's side who don't get to ride such bikes!

Once you get on the superbike and ride it u don't care if it has only frame or such slimming down s**t!

**Sunny** · 11-06-2008, 07:11 PM

Originally posted by nitrosatya View Post

If u are a regular superbike rider it might not mean much to you;since a rider does not feel a design philosophy.

This PoV is only from a viewer's side who don't get to ride such bikes!

Once you get on the superbike and ride it u don't care if it has only frame or such slimming down s**t!

Thats exactly the opposite my friend. People who ride superbikes are the most concerned about what is being done to the future models.

**nitrosatya** · 11-06-2008, 07:22 PM

Originally posted by Sunny View Post

Thats exactly the opposite my friend. People who ride superbikes are the most concerned about what is being done to the future models.

Regarding design??? or regarding performance??
I think it might well be only limited to performance.

**Sunny** · 11-06-2008, 07:35 PM

Both design and performance. better design involves weight balancing, better handling via a better frame etc which also impact performance on the road and the track. Both are interdependent and interlinked.

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Are the Japanese bikes slimming down??

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