[BruceV]

That...is another front wheel :nerd: Unless this is a magic eye deal and there's a rear tire/wheel hidden in plain sight?

I'm old and not paying attention please never trust another thing I post. I was so bent on trying to read the size of the tire I blew all the pictures up to 400% all I saw was the side wall and thought I could make out the number 1 - which I did - but of course when I posted the pic you don't think at that point in normal size I saw it was a front tire?

 

[Legacy]

I really want to put on 190 Q3s. These damn forge wheels is a blessing and a curse.

Anyways, i saw a few forum users said they have no issue and then i read some others have the traction sensors go off.

I'm tempted to buy a used 190 just to test it out.

 

[macca_779]

I really want to put on 190 Q3s. These damn forge wheels is a blessing and a curse.



Anyways, i saw a few forum users said they have no issue and then i read some others have the traction sensors go off.



I'm tempted to buy a used 190 just to test it out.

190 tyre on the HP wheel is no problem mate. I've ridden a couple of 15's in this config with bikes operated by the California Superbike School

 

[AndyHP4]

in the "motorcycle.com shootout", they had the s1krr with the forged wheel and they went down to a 190 super corsa with no issue.

2015 Six-Way Superbike Track Shootout + Video

Thoughts?

Too many clueless people :wink2:

Sure they don't have any issues with TC since they either don't use it anyway or it kicks in much too late. If it would kick in too early they decrease intervention and continue riding.

It's a matter of fact that regardless which year BMW with DTC you have, the more you change the tire circumference the more the DTC behaves differently - do the math - end of story.

We don't have a fully adaptive DTC system catering for all kind of tyre changes and what the manual and the race calibration kit manual are saying is fact - read it :nerd:

 

[bahula03]

I'm old and not paying attention please never trust another thing I post. I was so bent on trying to read the size of the tire I blew all the pictures up to 400% all I saw was the side wall and thought I could make out the number 1 - which I did - but of course when I posted the pic you don't think at that point in normal size I saw it was a front tire?

I'm not sure what part of that is serious and what part is joking, sorry if I misunderstood what you posted.

 

[BruceV]

I'm not sure what part of that is serious and what part is joking, sorry if I misunderstood what you posted.

Simple - I was acknowledging that you were on your game and I was not.

You would think that I would have realized that it was a front tire - heck the tech is at the front and the tire/wheel assembly has a large rotor visible - hence I'm old and not to be trusted.

 

[DrIoannis]

I have a 2010 S1000RR DTC/ABS bike. It comes with 190/55 tire. I have installed a 200/55 tire and there was no problem with DTS/ABS. I have been with this tire to the track multiple times and no problems. Now for the 2015 I think it will be the same if you go from 190 to 200. Now if you go from 200 to 190 I really do not know the results. My opinion is that you are going to be fine. Not all the tires that are 190/55 are the same high. I know if you go from 200/55 or 190/55 to 190/50 then there might be a problem. I remember a member of the forum had DTC flashing after installing a 190/50 tire to his pre 2015 model.

 

[AndyHP4]

I have a 2010 S1000RR DTC/ABS bike. It comes with 190/55 tire. I have installed a 200/55 tire and there was no problem with DTS/ABS. I have been with this tire to the track multiple times and no problems. Now for the 2015 I think it will be the same if you go from 190 to 200. Now if you go from 200 to 190 I really do not know the results. My opinion is that you are going to be fine. Not all the tires that are 190/55 are the same high. I know if you go from 200/55 or 190/55 to 190/50 then there might be a problem. I remember a member of the forum had DTC flashing after installing a 190/50 tire to his pre 2015 model.

You never have an issue changing to a bigger rear tyre...only your DTC will kick in 1 or 2 or 3 or 4% later so you don't see your light so often then :wink2:

 

[Stam74]

Has anyone tried 200/65? My dealer has offered me this option on Bridgestone V02 (waiting for my usual 190/55 SC) and I'm not sure how the TC will behave. Especially considering that I keep a SC1 in the front.

Thanks

 

[scotman623]

my 2015 with HP wheels came with Supercorsa 200 rear tire on it. I have since switched to Dunlop GPA Pros 190-60 for track use without noticing any difference from stock with the TC. The only difference is the GPA PRO is a lot better of a tire for fast track riding.

 

[AndyHP4]

my 2015 with HP wheels came with Supercorsa 200 rear tire on it. I have since switched to Dunlop GPA Pros 190-60 for track use without noticing any difference from stock with the TC. The only difference is the GPA PRO is a lot better of a tire for fast track riding.

Sure it's working since you get different maps for DTC, DDC etc. with having HP factory fitted wheels - put on a 190/50 and you see how the TC kicks in all the time :wink2:

 

[Stam74]

Sure it's working since you get different maps for DTC, DDC etc. with having HP factory fitted wheels - put on a 190/50 and you see how the TC kicks in all the time :wink2:

Hi Andy, what do you think about 200/65? I'd prefer that the TC does not kick in too late!
Mine is a 2013 stock so I think the TC was not so optimized as in the HP4 (and of course the 2015).

 

[AndyHP4]

Hi Andy, what do you think about 200/65? I'd prefer that the TC does not kick in too late!
Mine is a 2013 stock so I think the TC was not so optimized as in the HP4 (and of course the 2015).

The TC on each BMW is calibrated to the tyre radius which comes from the factory. So I guess your bike comes with a 190/55 OEM right? Then going to a bigger rear for instance a Michelin 20/69 slick which has roughly 4-5mm bigger radius. That will let the DTC intervene around 1% later. To compensate that just go 3 levels up on you DTC e.g from -2 to +1, so the DTC intervenes earlier and tolerate 1.5% slip less - makes sense? :nerd:

 

[Stam74]

The TC on each BMW is calibrated to the tyre radius which comes from the factory. So I guess your bike comes with a 190/55 OEM right? Then going to a bigger rear for instance a Michelin 20/69 slick which has roughly 4-5mm bigger radius. That will let the DTC intervene around 1% later. To compensate that just go 3 levels up on you DTC e.g from -2 to +1, so the DTC intervenes earlier and tolerate 1.5% slip less - makes sense? :nerd:

Yes, it was 190/55. But it is a 2013, this means that my only TC options are Rain/Sport/Race/Slick.
I'm always on Race mode since ABS is kicking in too early in Sport, but actually did not have any issue with TC in Sport mode (this means I brake really hard but I'm still a bit afraid with the gas, last crash was "half high side" so that's why).

So here are my options for this weekend (hence the urgency!), always with a front SC1:

- I get this V02 rear in 200/65 and try it in Race or even Slick mode. They say it's quite sticky so perhaps the TC won't kick in at all!

- I get the V02 and switch to Sport mode... not good since my braking references will go to the bin, and especially if it's crowded at corner entry I don't want to find out that I'm out of braking power.

- I keep the current Metzeler CompK (only used once, did not like it but TC was ok), because I think the problem is bigger in my mind....


Last question; as I will probably try these V02 in the future (the whole set), do you think the front size matters also? (it is a 120/60 instead of 70).


Thanks

 

[AndyHP4]

Yes, it was 190/55. But it is a 2013, this means that my only TC options are Rain/Sport/Race/Slick.
I'm always on Race mode since ABS is kicking in too early in Sport, but actually did not have any issue with TC in Sport mode (this means I brake really hard but I'm still a bit afraid with the gas, last crash was "half high side" so that's why).

So here are my options for this weekend (hence the urgency!), always with a front SC1:

- I get this V02 rear in 200/65 and try it in Race or even Slick mode. They say it's quite sticky so perhaps the TC won't kick in at all!

- I get the V02 and switch to Sport mode... not good since my braking references will go to the bin, and especially if it's crowded at corner entry I don't want to find out that I'm out of braking power.

- I keep the current Metzeler CompK (only used once, did not like it but TC was ok), because I think the problem is bigger in my mind....


Last question; as I will probably try these V02 in the future (the whole set), do you think the front size matters also? (it is a 120/60 instead of 70).


Thanks

First of all, yes front and rear tyre size matters, how else the TC knows you have slip. Which tyre you like more or is better in your subjective opinion I can't tell you but I love Metzelers on my R1 and also the Pirelli on the HP4 since they are coming out of the same house. Since you can't adjust the TC stepwise I would use the Metzeler, have the right tyre pressure to get the right amount of heat into them and use slick mode so the TC intervenes the least...also you are changing the pitch of your bike so just do the math and perhaps you also should reduce the fork over triple distance...hope that helps but I can't recommend any tyre, that's up to your preference :nerd: Tyres and bikes are nowadays better than most riders anyway aye:wink2:

 

[Stam74]

First of all, yes front and rear tyre size matters, how else the TC knows you have slip. Which tyre you like more or is better in your subjective opinion I can't tell you but I love Metzelers on my R1 and also the Pirelli on the HP4 since they are coming out of the same house. Since you can't adjust the TC stepwise I would use the Metzeler, have the right tyre pressure to get the right amount of heat into them and use slick mode so the TC intervenes the least...also you are changing the pitch of your bike so just do the math and perhaps you also should reduce the fork over triple distance...hope that helps but I can't recommend any tyre, that's up to your preference :nerd: Tyres and bikes are nowadays better than most riders anyway aye:wink2:

Finally I kept that "beginners slick" and used it the whole weekend, trying to make the most of it instead of being afraid of it.
Don't get me wrong, it's not a bad tyre, but you can tell the difference between the front Supercorsa SC and it; it's really hard and after 3 days it's like new, whilst the SC has wrinkles everywhere and you could remove rubber with your hand right after using it.
The TC worked perfectly and it ended up kicking in in almost every corner of the track. It did impact my acceleration performance but I did not care since I was then trying to improve my cornering speed (and since I saw no risk TC wise).

My question about the front tyre (speaking about the other option, the V02's) was not clear: I know the front size matters, but perhaps the pair 120/60 - 200/65 is equivalent to the original one somehow ... but it's weird; it's a lower profile in the front and higher in the rear.

Thanks again

 

[AndyHP4]

Finally I kept that "beginners slick" and used it the whole weekend, trying to make the most of it instead of being afraid of it.
Don't get me wrong, it's not a bad tyre, but you can tell the difference between the front Supercorsa SC and it; it's really hard and after 3 days it's like new, whilst the SC has wrinkles everywhere and you could remove rubber with your hand right after using it.
The TC worked perfectly and it ended up kicking in in almost every corner of the track. It did impact my acceleration performance but I did not care since I was then trying to improve my cornering speed (and since I saw no risk TC wise).

My question about the front tyre (speaking about the other option, the V02's) was not clear: I know the front size matters, but perhaps the pair 120/60 - 200/65 is equivalent to the original one somehow ... but it's weird; it's a lower profile in the front and higher in the rear.

Thanks again

You need to do the math esp. 120/60 is smaller that the OEM 120/70...get the circumference of front/rear for both tyre sets so you can compare them to the OEMs where the TC is calibrated too...can't do that :wink2:

Like I said, friend of mine did something similar from 120/70-190/50 to 120/60-200/60 and wondered that TC never kicks in - calculation showed me a slip of over 14% before TC kicks in and that's pretty late - you just fell/see it.

 

[Stam74]

You need to do the math esp. 120/60 is smaller that the OEM 120/70...get the circumference of front/rear for both tyre sets so you can compare them to the OEMs where the TC is calibrated too...can't do that :wink2:

Like I said, friend of mine did something similar from 120/70-190/50 to 120/60-200/60 and wondered that TC never kicks in - calculation showed me a slip of over 14% before TC kicks in and that's pretty late - you just fell/see it.

I went to my dealer yesterday to finally get my supercorsa and learnt a bit more on those Bridgestone; it turns out that I was a bit confused.
The tyres sizes are 120/600 and 200/650. So those "600" and "650" do not refer to the aspect ratio but something else, and apparently they are exactly the same size as a 120/70 and 200/60.
They told me they are as good as the Diablo SBK slick, and they're cheaper, so I think one day I'll try them.

 

[AndyHP4]

I went to my dealer yesterday to finally get my supercorsa and learnt a bit more on those Bridgestone; it turns out that I was a bit confused.
The tyres sizes are 120/600 and 200/650. So those "600" and "650" do not refer to the aspect ratio but something else, and apparently they are exactly the same size as a 120/70 and 200/60.
They told me they are as good as the Diablo SBK slick, and they're cheaper, so I think one day I'll try them.

Right, forget about these tyre declarations, just measure circumference/radius etc on your own then you know what's going on. Like the difference between a 190/55 and a 200/55 is below 1% which isn't what you would expect from these numbers...:nerd:

 

[the_gooch]

I went to my dealer yesterday to finally get my supercorsa and learnt a bit more on those Bridgestone; it turns out that I was a bit confused.
The tyres sizes are 120/600 and 200/650. So those "600" and "650" do not refer to the aspect ratio but something else, and apparently they are exactly the same size as a 120/70 and 200/60.
They told me they are as good as the Diablo SBK slick, and they're cheaper, so I think one day I'll try them.

600 and 650 are diameter measurements but they are not always spot on either.

e.g. 120/600 and 200/655 Bstone slicks are 604mm and 655mm dia. respectively.