190 to 180 section - feels better already!

[XC2]

My 749 came with a 190 section on from the previous owner and I've stuck with that. I thought I'd go for a change this time though and have gone back to a 180 as it should be, a 2ct to be precise.

I've only done about 100miles so far but the early signs are good! Nice sharp turn in - looking forward to the next trackday in may now

So if any of you are running wider tyres than you're supposed to - give a smaller one a go, you might be very suprised...

Edited by XC2 on Wednesday 11th April 21:23

[StuB]

Swapped my GSXR to 180 when I fitted the latest Corsa's and I'm very pleased with the result

[biker's nemesis]

I fit the 180s from my track bike onto my R1 which should have a 190, feels more or less the same. No noticable problems with stability when cornering or stright line.

or indeed 3rd and 4th gear wheelies

[catso]

My 916 was originally fitted with a 190, I changed to a 180 - huge difference in turn-in etc vastly improved but it has a 5.5" rear wheel and a 190 tyre sits wrong on that, by all accounts a 190 turns as well as a 180 if fitted on a 6" rim. The new 1098 has a 190/55 on a 6" which supposedly works even better than a 190/50 due to taller profile.

The 190 was a 'fashion' thing rather than a performance thing which the 748/916/996/998/749/999 didn't really need....

Edited by catso on Wednesday 11th April 22:33

[tankslappa]

For your info



I may look to fit a 190/55 to the R1 when they are due for replacement.

[F.M]

I think I read somewhere that 190`s never really get to the edge of the tyre during `normal` riding ..due to the angle of the tyre at the edge which is steeper..unless you are Mick Doohan...I think it was an article in a bike mag on a ZX9..which on the 190 ..had a larger unused strip no matter how hard they tried to get there..I`m sure rearsets fitted on a track tool could manage it though...Another thing is sometimes the 190 can get VERY close to the swingarm & linkages on some bikes..and if your rear wheel allignment isn`t spot on..may rub...

[biker's nemesis]

tankslappa said:

For your info



I may look to fit a 190/55 to the R1 when they are due for replacement.

I ran Bridgestone BT014s in 190/50 and then Super Corsa's in 190/55.

Looking at the graph I'm pleased to see that the profile is similar for the 190/55 and 180/55 the profile of the 190/50 looks much fatter.



180/55.

[biker's nemesis]

F.M said:

I think I read somewhere that 190`s never really get to the edge of the tyre during `normal` riding ..due to the angle of the tyre at the edge which is steeper..unless you are Mick Doohan...I think it was an article in a bike mag on a ZX9..which on the 190 ..had a larger unused strip no matter how hard they tried to get there..I`m sure rearsets fitted on a track tool could manage it though...Another thing is sometimes the 190 can get VERY close to the swingarm & linkages on some bikes..and if your rear wheel allignment isn`t spot on..may rub...

Could possibly be to do with the size of the rim! as someone somewhere recently said.

Most of the bike tyres that I look at usally have the whole of the rear tyre to the edge, it's the front one that's hard to get right to the edge.

[y2blade]

5.5 inch rim should have a 180 on anyway

im happy with 190 on my blade and have no problem getting to the edges, although the front never gets used right to the edge

[nords]

Rennsport 190/50....

[nords]

Here is the Pirelli Corsas at 28 miles old with chicken strips...



100 miles old...



At about 400 miles old, half way through a Donnington trackday...



..and at the end of the day! 600 miles old and knackered!!!



The life of a rear tyre on a GSXR thou! I have always used 190/50 on my (std) 6" suzook rim. Would I be better off with a 180, or would it wear even faster?

Edited by nords on Friday 13th April 11:51

[y2blade]

6" rim should have a 190 so i'd "stick" with it

HTH

[carrera2]

nords said:

Here is the Pirelli Corsas at 28 miles old with chicken strips...



100 miles old...



At about 400 miles old, half way through a Donnington trackday...



..and at the end of the day! 600 miles old and knackered!!!



The life of a rear tyre on a GSXR thou! I have always used 190/50 on my (std) 6" suzook rim. Would I be better off with a 180, or would it wear even faster?

Edited by nords on Friday 13th April 11:51

They're not knackered in the slightest! 50 miles on the road and you'd never know you'd tracked it. There's oodles of tread left before you near your indicators as far as I can see.

I do hope you haven't binned them!


PS - try turning left sometimes.

Edited by carrera2 on Friday 13th April 16:07

[nords]

Slightly awkward turning left at Donnington! Hehehehe... The really awkward part was that the 45 degree angle bit was down to 2mm with the centre of the tyre still at 4-5mm! It made the handling..... interesting shall we say! Cured the tyre with some wheelies, although that was last summer, I have supercorsas on now.

[catso]

y2blade said:

6" rim should have a 190 so i'd "stick" with it

HTH

But a 190/55 has a better profile than the 190/50 and will turn-in better (just make sure it clears any hugger etc).

[biker's nemesis]

[quote=carrera2]
They're not knackered in the slightest! 50 miles on the road and you'd never know you'd tracked it. There's oodles of tread left before you near your indicators as far as I can see.

Here's the next ex track tyre from my 600, destined for the R1