Michelin Cup 2 Variants

[RugbyBro]

Originally Posted by hellokitty

These are also pretty legit…

https://automotivepassion.net/produc...age-ap-design/

Oh yah my buddy has those - they definitely look better! The TLG flaps are more guerrilla

[TTM0TION]

Originally Posted by hellokitty

These are also pretty legit…

https://automotivepassion.net/produc...age-ap-design/

I have these. Happy with them.

[Keca10]

Anyone running BMW Star Cup2 connects (G80 version) on the F80 with 763M wheels?

Any issues with slightly wider front (275 vs 265)?
Seems there should be no issues given that this version of the 275 tire isn’t as wide as usual.

Especially curious about HPDE/track experience, but also on the street.

[RugbyBro]

Originally Posted by Keca10

Anyone running BMW Star Cup2 connects (G80 version) on the F80 with 763M wheels?

Any issues with slightly wider front (275 vs 265)?
Seems there should be no issues given that this version of the 275 tire isn’t as wide as usual.

Especially curious about HPDE/track experience, but also on the street.

I have - TLDR:

- Fronts fit fine (very square, no bulge), do not run spacers or you'll rub
- Definitely a compromise/do-it-all tire with DE days in mind, arrive & drive
- There are better dedicated street tires and dedicated track tires
- Great grip on track but after the first 10-15 heat cycles they become seat time tires
- They do not like hot pressures over 36 psi, I target 34 hot

I won't be running them again as I have multiple wheel sets and am running 285 square now. I'll eventually throw on G80 PS4S for wet track days. For the occasional track day they're great but they do heat cycle out and long street trips is a big contributor to that. Perfect for like "5 events a year with street use in between" kind of situation.

https://f80.bimmerpost.com/forums/sh...9&postcount=75
https://f80.bimmerpost.com/forums/sh...2&postcount=78
https://f80.bimmerpost.com/forums/sh...8&postcount=79
https://f80.bimmerpost.com/forums/sh...8&postcount=80
https://f80.bimmerpost.com/forums/sh...4&postcount=82
https://f80.bimmerpost.com/forums/sh...0&postcount=85

[Keca10]

Originally Posted by RugbyBro

I have - TLDR:

- Fronts fit fine (very square, no bulge), do not run spacers or you'll rub
- Definitely a compromise/do-it-all tire with DE days in mind, arrive & drive
- There are better dedicated street tires and dedicated track tires
- Great grip on track but after the first 10-15 heat cycles they become seat time tires
- They do not like hot pressures over 36 psi, I target 34 hot

I won't be running them again as I have multiple wheel sets and am running 285 square now. I'll eventually throw on G80 PS4S for wet track days. For the occasional track day they're great but they do heat cycle out and long street trips is a big contributor to that. Perfect for like "5 events a year with street use in between" kind of situation.

I should have said, I’ve been running the older BMW star Cup2s (M4 gts) for the last 3 years. They last about a year (spring to fall plus about 3-4 track days).

The Connect version seems really similar based on what you described.
I also quickly figured on the track they are unstable and greasy if I let the pressure get too high during a session (38+). I keep ‘em at 34-36 psi they seem quite happy then. I am hoping the Connects really do last a little longer.

[RugbyBro]

Originally Posted by Keca10

I should have said, I’ve been running the older BMW star Cup2s (M4 gts) for the last 3 years. They last about a year (spring to fall plus about 3-4 track days).

The Connect version seems really similar based on what you described.
I also quickly figured on the track they are unstable and greasy if I let the pressure get too high during a session (38+). I keep ‘em at 34-36 psi they seem quite happy then. I am hoping the Connects really do last a little longer.

I would probably expect a track day or two more out of the connects tbh. They're still serviceable now after all the heat cycles I've put on them but they require a lot more heat management than before and aren't going to be a PB tire. In terms of wear, my fronts have worn around 1.5x the rate of my rears based on my driving style (major reason why I'm going square).

[DaiLyCS]

Originally Posted by RugbyBro

I would probably expect a track day or two more out of the connects tbh. They're still serviceable now after all the heat cycles I've put on them but they require a lot more heat management than before and aren't going to be a PB tire. In terms of wear, my fronts have worn around 1.5x the rate of my rears based on my driving style (major reason why I'm going square).

What’s rims, sizes and offset are you running, and what’s tires? I’m thinking about square set too. In looking at 513 wheels 18x10.5 46 offset what’s your thoughts?

[RugbyBro]

Originally Posted by DaiLyCS

What’s rims, sizes and offset are you running, and what’s tires? I’m thinking about square set too. In looking at 513 wheels 18x10.5 46 offset what’s your thoughts?

Good timing - I just posted in this thread. Bunch of different options for running square. I'm running 18x10.5et36 which requires a spacer in front.

https://f80.bimmerpost.com/forums/sh...&postcount=153

[DaiLyCS]

Originally Posted by RugbyBro

Good timing - I just posted in this thread. Bunch of different options for running square. I'm running 18x10.5et36 which requires a spacer in front.

https://f80.bimmerpost.com/forums/sh...&postcount=153

Thank you 🙏 I will check it out

[Blk5er33]

Since you guys use Cup 2, wanted to get your opinion. Do my tires (Cup 2 Connect) have enough tread left? Did 4 track days in novice solo groups (often getting stuck behind slow traffic). So about 15-16 heat cycles if you count the slow run groups. Its on a G82 6MT. Only probably 2000 street miles on them or less. Are they good for one more? How do you guys tell when they are worn out - just by the wear bars?

[csboi]

Originally Posted by Blk5er33

Since you guys use Cup 2, wanted to get your opinion. Do my tires (Cup 2 Connect) have enough tread left?

Yeah keep going on them, but you need more camber.

My spec
Tire: CUP2 * (Connect, GTS)
Camber: -3.0F, -2.0R
Tow: 0F, 0R
Longevity: 6 track days, ±25sessions, ±15k street miles

Here's my tire wear out back. I think I torched them by being over-inflated for a session. Fronts are 50%, even wear.

[Blk5er33]

Thanks for the quick reply. I do actually have -3.0 camber on the front with vorshlag plates, will get it checked to make sure it still is that. Toe is 0.12, will try to get less. And wow your wear pattern is crazy, cords in the middle with a ton of tread on the sides. What should I look for on my tires in terms of more wear? Just keep going until I see cords? I drive on these tires to the track, so want to be have enough tread to make it back as well. I do bring 1 spare wheel+tire.

Originally Posted by csboi

Yeah keep going on them, but you need more camber.

My spec
Tire: CUP2 * (Connect, GTS)
Camber: -3.0F, -2.0R
Tow: 0F, 0R
Longevity: 6 track days, ±25sessions, ±15k street miles

Here's my tire wear out back. I think I torched them by being over-inflated for a session. Fronts are 50%, even wear.

[heyyouduh]

Originally Posted by Blk5er33

Thanks for the quick reply. I do actually have -3.0 camber on the front with vorshlag plates, will get it checked to make sure it still is that. Toe is 0.12, will try to get less. And wow your wear pattern is crazy, cords in the middle with a ton of tread on the sides. What should I look for on my tires in terms of more wear? Just keep going until I see cords? I drive on these tires to the track, so want to be have enough tread to make it back as well. I do bring 1 spare wheel+tire.

That's interesting wear given your camber. Maybe the tread is different from outside to inside and thus they wear differently.

I'm on regular connect cup 2s , I got them slightly used for a decent price but don't think I will be buying them new. Don't think they have the value of say RS4.

[RugbyBro]

Originally Posted by Blk5er33

Since you guys use Cup 2, wanted to get your opinion. Do my tires (Cup 2 Connect) have enough tread left? Did 4 track days in novice solo groups (often getting stuck behind slow traffic). So about 15-16 heat cycles if you count the slow run groups. Its on a G82 6MT. Only probably 2000 street miles on them or less. Are they good for one more? How do you guys tell when they are worn out - just by the wear bars?

My fronts are torn up like that at the center rib as well. Was running 34-36 hot all last season and they were wearing evenly except that center rib got chewed thru at -2.0 camber.

But honestly I think heat cycles matter more here - you’ve def got at least a day in terms of rubber left, but it’s unlikely to be your fastest day as the Cup2s are probably past their grippiest heat cycles.

[RobDucati]

Originally Posted by tropicatango

good to hear i just bought a set of 255/35/19 front and 275/35/19 michelin cup 2, MO is the only option in those size, can't wait to try them and compare to my goodyear supercar 3 that just went off the car

How did these work out? I have the APEX 19X9.5 and 19X10.5 and ordered these sizes. The 255/35/19 doesn't have rim protectors which seems odd. The 275/35/19 * spec has rim protectors but is really narrow and about the same width as the 255.

Thinking I should send the 275 back and get the 265 which is listed as wider than the the 275 on tire rack. Appears there is no logic to the size between the regular cup 2, the * spec, and the other variants.

[M3SQRD]

Originally Posted by RobDucati

How did these work out? I have the APEX 19X9.5 and 19X10.5 and ordered these sizes. The 255/35/19 doesn't have rim protectors which seems odd. The 275/35/19 * spec has rim protectors but is really narrow and about the same width as the 255.

Thinking I should send the 275 back and get the 265 which is listed as wider than the the 275 on tire rack. Appears there is no logic to the size between the regular cup 2, the * spec, and the other variants.

A lot of MPSC2 tires do not have rim protection built into the sidewall because it’s unnecessary unsprung mass. I’ve tried 255, 265, 285 and 295 MPSC2s and none of them had rim protection.

Sizes/widths are dictated by the car manufacturer that the tire is being developed for. BMW widths are usually narrower than the same tire width from another manufacturer because BMW wants the tire better supported by the wheel width. A narrower tire on a wider wheel outperforms a wider tire on a narrower wheel. Stuffing the widest tire on a narrow wheel not only affects the contact patch, it also affects the tire’s breakaway characteristics at high slip angles. This typically results in a tire that abruptly snaps rather than a more progressive breakaway characteristic. I’ve learned this first hand as well as from GRM comparisons, car magazine comparisons as well as online comparison articles and YouTube videos.

[tropicatango]

Originally Posted by RobDucati

How did these work out? I have the APEX 19X9.5 and 19X10.5 and ordered these sizes. The 255/35/19 doesn't have rim protectors which seems odd. The 275/35/19 * spec has rim protectors but is really narrow and about the same width as the 255.

Thinking I should send the 275 back and get the 265 which is listed as wider than the the 275 on tire rack. Appears there is no logic to the size between the regular cup 2, the * spec, and the other variants.

It was perfect, keep the 255/275 setup, it’s perfect on these wheels specs

[Colinv6]

What pressures would you guys run on the GTS cup2 front and rear? Road driving only no track work…

[M3SQRD]

Originally Posted by Colinv6

What pressures would you guys run on the GTS cup2 front and rear? Road driving only no track work…

With the different sizes of PSC2s I’ve tried, I used 34 psi F and 36 psi R. If you’re tracking with them 34 psi hot otherwise they start to get greasier with hot psi >= 35 psi.

[WillemM4C]

I run 2.2bar f/r on the oem cup2* 763m

On track tire temp 80 degrees Celsius, pressure went up to 2.6bar.

I like them very much, very predictable grip levels, more predictable than PS4. Less snappy.

In the wet less grip than PS4 off course, but also very predictable.
And high speeds runs on the autobahn with cup2 (dry) there is much more stability.
With PS4 the car is floating on high very speeds. (240-300kmh range)

[CedricB]

Hey bimmer pros, I’m preparing my F83 ZCP for my first HPDE day. My rear tires are due for renewal, I’m thinking GoodYear Eagle F1 Supercar 3 size 295/30ZR20 101(Y) XL eXtra Load (Because the GY 285/30ZR20 are only 94(Y) SL - Standard Load).
What do you think? Apart from being 1cm wider thread, the tire is about 1% similar to OEM Michelin 285/30/ZR20 XL. Will there be any rubbing with those GY 295?

[CedricB]

Found it, it looks like it was asked previously. Response is usually : it’s ok.