‘23 V4S stock forged wheels vs BST wheels

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big boys slicks are 125/70 and 200/65 now the taller front matches the taller rear.

Some do run the lower front 120 70 with the taller rear....but only 7 people on this site mess with geometry.
 
big boys slicks are 125/70 and 200/65 now the taller front matches the taller rear.

Some do run the lower front 120 70 with the taller rear....but only 7 people on this site mess with geometry.

the rear 200/65 is only a millimeter or so difference in height from the 200/60 so I didn’t adjust rear ride height for it, but I lowered the front by about 4 mm to compensate for the significantly taller 125/70
 
the rear 200/65 is only a millimeter or so difference in height from the 200/60 so I didn’t adjust rear ride height for it, but I lowered the front by about 4 mm to compensate for the significantly taller 125/70

That seems a significant difference.

What are pros and cons for using the different sizes to standard?

Geometry changes are required?
 
That seems a significant difference.

What are pros and cons for using the different sizes to standard?

Geometry changes are required?

Andy and I agree on this (though did he read this or did he actually break out the tape measure for practical experience?)! The 125/70 front and 200/65 rear slicks both grow 2% so no geometry changes are needed. 2% is marginal, not significant. Pros 2% bigger contact patch, sharper profile. Cons 2% heavier, not as stable.

Do some reading first, form some thoughts of your own, and then ask questions… It’s all right here DIABLO™ Superbike - Motorcycle tyre | Pirelli and here www.google.com
 
Andy and I agree on this (though did he read this or did he actually break out the tape measure for practical experience?)! The 125/70 front and 200/65 rear slicks both grow 2% so no geometry changes are needed. 2% is marginal, not significant. Pros 2% bigger contact patch, sharper profile. Cons 2% heavier, not as stable.

Do some reading first, form some thoughts of your own, and then ask questions… It’s all right here DIABLO™ Superbike - Motorcycle tyre | Pirelli and here www.google.com

Interesting.

No need for links to Google and Pirelli - already aware of their websites.

Are there any issues with fitting tyre warmers under standard huggers with bigger tyres? Not sure that you’d have experience with that, but I’m sure others here have.
 
Are there any issues with fitting tyre warmers under standard huggers with bigger tyres?

Possibly maybe. Depends on your tire warmers, fenders, and stands for clearance. Only way you’ll know is by trying. I know on my FG Gub stand there‘d probably be clearance issues with warmers on OEM 200/60s.

But again, for track days why are you running anything more than an SC3 which doesn’t necessarily need warmers?

No need for practical experience here. Just a good dose of common sense and forethought.
 
the rear 200/65 is only a millimeter or so difference in height from the 200/60 so I didn’t adjust rear ride height for it, but I lowered the front by about 4 mm to compensate for the significantly taller 125/70

If the 65 is the same height as the 60 that 5 be on the sides. Shorter sidewalls? Profile change?
 
Possibly maybe. Depends on your tire warmers, fenders, and stands for clearance. Only way you’ll know is by trying. I know on my FG Gub stand there‘d probably be clearance issues with warmers on OEM 200/60s.

But again, for track days why are you running anything more than an SC3 which doesn’t necessarily need warmers?

No need for practical experience here. Just a good dose of common sense and forethought.

“I don’t know” would have sufficed. 👍
 
Possibly maybe. Depends on your tire warmers, fenders, and stands for clearance. Only way you’ll know is by trying. I know on my FG Gub stand there‘d probably be clearance issues with warmers on OEM 200/60s.

But again, for track days why are you running anything more than an SC3 which doesn’t necessarily need warmers?

No need for practical experience here. Just a good dose of common sense and forethought.

Where are you seeing the sc3 doesn’t need warmers?

On the pressure chart linked bellow, the only size listing warmer use as “optional” is 100/80. They don’t specify warmer use based on compound at all.

https://www.pirelli.com/tyres/en-ww/motorcycle/catalogue/product/diablo-superbike
 
I talked to Chris Maguire at CT Racing (West coast Pirelli distributor) and he said that you can run the SC3 slicks without tire warmers. This was confirmed at the Pirelli tent when I was at Laguna Seca. But yeah, there’s no mention of it on their site just with the Diablo Supercorsa SC (DOT) tire How to choose the right Diablo Supercorsa sc compound

IMG_0837.jpeg


IMG_0838.jpeg
 
I talked to Chris Maguire at CT Racing (West coast Pirelli distributor) and he said that you can run the SC3 slicks without tire warmers. This was confirmed at the Pirelli tent when I was at Laguna Seca. But yeah, there’s no mention of it on their site just with the Diablo Supercorsa SC (DOT) tire How to choose the right Diablo Supercorsa sc compound

View attachment 52906

View attachment 52907

I’m setting it up so my street wheels with SC3 Dots…and the track tires I’ll run next track day are an SC1 front and SC3 rear slicks…expecting cooler temps
 
Lots of guessing here I can see;) I have been running the slicks in 125/70 SC3 for the front and 200/65 SC2 or SC1 in the back this season.
I had to get new warmers as the front did not fit with regards to the very small distance between the (extremely crazy) location of the brake line fixation.
Was running some cheap China model warmer and the upgraded Alpha I got was much thinner.
One thing to take care of is that the brake line fixation under the fender looses and then rubbs against the wheel, I know of one nasty accident due to this...
Another thing I did was to move the ABS connection line to the outside of the fender.
 
Lots of guessing here I can see;) I have been running the slicks in 125/70 SC3 for the front and 200/65 SC2 or SC1 in the back this season.
I had to get new warmers as the front did not fit with regards to the very small distance between the (extremely crazy) location of the brake line fixation.
Was running some cheap China model warmer and the upgraded Alpha I got was much thinner.
One thing to take care of is that the brake line fixation under the fender looses and then rubbs against the wheel, I know of one nasty accident due to this...
Another thing I did was to move the ABS connection line to the outside of the fender.

I use Thermal Technology Tri-Zone warmers, which I believe would fit.

Did you notice any particular differences going to these sizes?
 
I use Thermal Technology Tri-Zone warmers, which I believe would fit.

Did you notice any particular differences going to these sizes?

It was the first season with slicks for me on this bike, but it sure felt good!
 
Got the same Thermal Tech warmers and they fit under my fender with the 125’s. A garage buddy had the same brake line issue where it pulled off the bracket and was cut by the tire. Zero brake at Chuck’s back straight when he pulled the lever, got it slowed down enough and kept it upright during his off into the desert. Very lucky and now I add that to my checklist prior to each session.
 
Got the same Thermal Tech warmers and they fit under my fender with the 125’s. A garage buddy had the same brake line issue where it pulled off the bracket and was cut by the tire. Zero brake at Chuck’s back straight when he pulled the lever, got it slowed down enough and kept it upright during his off into the desert. Very lucky and now I add that to my checklist prior to each session.

Good to hear that fitment should be fine. I've been pleased with the warmers and I'm guessing the size I got for OEM tyres should easily fit these tyres as well.

How do the lines manage to come off the bracket? I just had a look and they seem to be very securely clamped in place (2023 V4R and 2021 SP2).
 

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