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Mr OCD

Original Poster:

3,995 posts

96 months

[news] 
Monday 17th September 2012 quote quote all
Anyone done it ... ?

It is a popular mod with older R1 owners due to the new R1's running 190/55 ... on Saturday I swapped to 190/55 and am absolutely amazed with the difference.

The bike turns in effortless and seems to have more grip when cranked over on it's side ... should have done this ages ago! smile

Obviously I was a bit concerned about increase in rear ride height / gearing but it has not had any negative effect on the bike ... did 200 miles on Saturday on twisty roads and the bike has never felt so planted!

I cannot see me going back to a 190/50 now ... anyone see any issues with this?

Steve Evil

9,215 posts

114 months

[news] 
Monday 17th September 2012 quote quote all
Fairly common these days, I've done it on my bike, can't see a good reason not to.

Stevie_P

471 posts

62 months

[news] 
Monday 17th September 2012 quote quote all
I have a 190/55 on the back of the TL and it seems to turn in pretty quick for a big old bird.
I think it's the way to go.

RemaL

21,497 posts

119 months

[news] 
Monday 17th September 2012 quote quote all
just fitted a 55 rear profile onto the blade after other saying is feels much better. not tried it out yet though

Harry H

748 posts

41 months

[news] 
Monday 17th September 2012 quote quote all
You have to work a darn sight harder to get rid of your chicken strips though
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Mr OCD

Original Poster:

3,995 posts

96 months

[news] 
Monday 17th September 2012 quote quote all
Harry H said:
You have to work a darn sight harder to get rid of your chicken strips though
Not really...



hehe

moto_traxport

2,515 posts

106 months

[news] 
Monday 17th September 2012 quote quote all
I've run all sorts on my old R1 and they all alter steering feel. I'm currently on a 180/55 (mainly because it was free) which also speeds the steering up a bit.

You've probably gone from a worn out 190/50 to a new 190/55 so the difference is possibly more marked.

I've not tried a 200 section that comes on the Aprilia RSV4 yet. That's still on a 6" wheel so it would fit and work but I've an idea it might be a pig at full lean with older bikes with older geometry.

BaronVonGrumble

193 posts

26 months

[news] 
Monday 17th September 2012 quote quote all
Yep, good mod to go to a 55.

BUT beware it increases your gearing, surprisingly its equaled out by changing to a +2 rear sprocket. Which means its quite noticeable! (well, this is what i found on a 2011 blade)

I ran a 60 on my k5 race bike and that was mental!

Mr OCD

Original Poster:

3,995 posts

96 months

[news] 
Monday 17th September 2012 quote quote all
BaronVonGrumble said:
Yep, good mod to go to a 55.

BUT beware it increases your gearing, surprisingly its equaled out by changing to a +2 rear sprocket. Which means its quite noticeable! (well, this is what i found on a 2011 blade)

I ran a 60 on my k5 race bike and that was mental!
I don't think it's actually made a great deal of difference to the gearing on the R1 as I cannot tell any difference! ... and IIRC wouldn't it improve acceleration slightly due to the change? - a bonus? smile

Steve Evil

9,215 posts

114 months

[news] 
Monday 17th September 2012 quote quote all
Mr OCD said:
BaronVonGrumble said:
Yep, good mod to go to a 55.

BUT beware it increases your gearing, surprisingly its equaled out by changing to a +2 rear sprocket. Which means its quite noticeable! (well, this is what i found on a 2011 blade)

I ran a 60 on my k5 race bike and that was mental!
I don't think it's actually made a great deal of difference to the gearing on the R1 as I cannot tell any difference! ... and IIRC wouldn't it improve acceleration slightly due to the change? - a bonus? smile
If anything it would add more to the top-end gearing of the bike to the detriment of the acceleration.

y2blade

54,388 posts

100 months

[news] 
Monday 17th September 2012 quote quote all
Steve Evil said:
Mr OCD said:
BaronVonGrumble said:
Yep, good mod to go to a 55.

BUT beware it increases your gearing, surprisingly its equaled out by changing to a +2 rear sprocket. Which means its quite noticeable! (well, this is what i found on a 2011 blade)

I ran a 60 on my k5 race bike and that was mental!
I don't think it's actually made a great deal of difference to the gearing on the R1 as I cannot tell any difference! ... and IIRC wouldn't it improve acceleration slightly due to the change? - a bonus? smile
If anything it would add more to the top-end gearing of the bike to the detriment of the acceleration.
Yep.
Same size physical gearing turning a larger OD wheel/tire = more top speed with less Acceleration.



Yazza54

13,199 posts

66 months

[news] 
Monday 17th September 2012 quote quote all
Mr OCD said:
BaronVonGrumble said:
Yep, good mod to go to a 55.

BUT beware it increases your gearing, surprisingly its equaled out by changing to a +2 rear sprocket. Which means its quite noticeable! (well, this is what i found on a 2011 blade)

I ran a 60 on my k5 race bike and that was mental!
I don't think it's actually made a great deal of difference to the gearing on the R1 as I cannot tell any difference! ... and IIRC wouldn't it improve acceleration slightly due to the change? - a bonus? smile


Smaller wheel increases acceleration

y2blade

54,388 posts

100 months

[news] 
Monday 17th September 2012 quote quote all
Yazza54 said:
Mr OCD said:
BaronVonGrumble said:
Yep, good mod to go to a 55.

BUT beware it increases your gearing, surprisingly its equaled out by changing to a +2 rear sprocket. Which means its quite noticeable! (well, this is what i found on a 2011 blade)

I ran a 60 on my k5 race bike and that was mental!
I don't think it's actually made a great deal of difference to the gearing on the R1 as I cannot tell any difference! ... and IIRC wouldn't it improve acceleration slightly due to the change? - a bonus? smile


Smaller wheel increases acceleration
It is not the wheel size that is relevant, it is the outside diameter of the wheel & tire combined.

Yazza54

13,199 posts

66 months

[news] 
Monday 17th September 2012 quote quote all
y2blade said:
Yazza54 said:
Mr OCD said:
BaronVonGrumble said:
Yep, good mod to go to a 55.

BUT beware it increases your gearing, surprisingly its equaled out by changing to a +2 rear sprocket. Which means its quite noticeable! (well, this is what i found on a 2011 blade)

I ran a 60 on my k5 race bike and that was mental!
I don't think it's actually made a great deal of difference to the gearing on the R1 as I cannot tell any difference! ... and IIRC wouldn't it improve acceleration slightly due to the change? - a bonus? smile


Smaller wheel increases acceleration
It is not the wheel size that is relevant, it is the outside diameter of the wheel & tire combined.
Yesyesyes

It put my NC30 speedo quite a way out with a 17 inch wheel from the RVF.



Edited by Yazza54 on Monday 17th September 12:42

Mr OCD

Original Poster:

3,995 posts

96 months

[news] 
Monday 17th September 2012 quote quote all
We agree the difference will be neligable though?

y2blade

54,388 posts

100 months

[news] 
Monday 17th September 2012 quote quote all
Mr OCD said:
We agree the difference will be negligible though?
You asking or telling? wink


Steve Evil

9,215 posts

114 months

[news] 
Monday 17th September 2012 quote quote all
Mr OCD said:
We agree the difference will be neligable though?
Yeah, it's not going to be huge, although the latest issue of PB suggests that by adding a 190/55 tyre to a Hayabusa it took the maximum speed up from 186 to 192mph, as it caused the speedo to under-read and got around the speed limiter that way.

Yazza54

13,199 posts

66 months

[news] 
Monday 17th September 2012 quote quote all
Mr OCD said:
Harry H said:
You have to work a darn sight harder to get rid of your chicken strips though
Not really...



hehe
Nothing to do with them being part worns that R1 Loon has had on track wink

Hooli

27,886 posts

85 months

[news] 
Monday 17th September 2012 quote quote all
y2blade said:
Mr OCD said:
We agree the difference will be negligible though?
You asking or telling? wink
Are we bored enough to work it out children?

According to this website http://www.club80-90syncro.co.uk/Syncro_website/Te... The difference is 3.1%.


Mr OCD

Original Poster:

3,995 posts

96 months

[news] 
Monday 17th September 2012 quote quote all
Yazza54 said:
Nothing to do with them being part worns that R1 Loon has had on track wink
heherofl

At least they are smooth now without massive clumps of rubber stuck to them... biggrin
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