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mero wrote:Lmao acesinghit acting like he had points and was winning that woft argument...
Where do these guys come from?
kamakazi wrote:I would only worry about those tyres if it rains or if it down to chords... Smooth tyres have more grip in the dry than tyres with plenty thread depth... Just saying
kamakazi wrote:Don't have to believe...... it is a fact...Less tread depth gives you more grip in the dry. That is why they use slicks in racing and offer shaved tyres.
Albiet I do know that there is not a lot of rubber left after all the treads have worn away and just like slicks in racing they are no good in the wet.
Also the reason why there aren't many tread grooves in high performance tyres
Toyo R888
Bridgestone re070r/re11s
Note these tyres do have some pretty grippy compound but they will not work if they have treads in them like an all season
kamakazi wrote:@ seecarr11
The same applies for Street tyres as well
A smooth version of a tyre has more contact with the road surface than a fully treaded one... Less or in the smooth tyre case no tread left means that their are no tread blocks to move around to overheat or squirm around under load. There is also less material to deal with the heat which is a draw back.
More material in contact with road surface means more friction...
But my argument is only for if the condition is dry
kamakazi wrote:All observations were done on what can be considered race rubber and they are not controlled...
from rallying
I think it was 1996 when Peugeot had the 206 rally car; 3 different drivers requested different levels of grooves be cut into their tyres to deal with rain that was predicted. The rain never came and the driver with the least amount of grooves for the drying roads had the most grip for the stages to follow.
There was also a rally where Sabastian Loeb opted for worn gravel tyres to run on a stage that was mostly tarmac instead of new gravel tyres that everyone else selected to go with. The rally being considered a gravel event... Slicks were not an option. After winning those particular stages of the event... They inquired as to why he made that particular choice to which he responded the more the tyre is used the more it starts to resemble a slick tyre and as it wears down it provides more grip.
Concerning Street tyres though...
That was from personal testing...I will leave it at that... But it was at a point I was going through a set of Dunlop eco tyres every year.
seecarr11 wrote:kamakazi wrote:All observations were done on what can be considered race rubber and they are not controlled...
from rallying
I think it was 1996 when Peugeot had the 206 rally car; 3 different drivers requested different levels of grooves be cut into their tyres to deal with rain that was predicted. The rain never came and the driver with the least amount of grooves for the drying roads had the most grip for the stages to follow.
There was also a rally where Sabastian Loeb opted for worn gravel tyres to run on a stage that was mostly tarmac instead of new gravel tyres that everyone else selected to go with. The rally being considered a gravel event... Slicks were not an option. After winning those particular stages of the event... They inquired as to why he made that particular choice to which he responded the more the tyre is used the more it starts to resemble a slick tyre and as it wears down it provides more grip.
Concerning Street tyres though...
That was from personal testing...I will leave it at that... But it was at a point I was going through a set of Dunlop eco tyres every year.
so you have not been able to cite a source to back up your claim about smooth street tire = more grip other than personal experience. then i suggest you take your car to a solodex or bycc with your smooth street tires and see how well it performs in the dry. For that matter, ask any performance car driver while you are there to run on smooth streets and see how willing they are to do so. Until then, my claim that what u said is bs still stands. you mentioned increased surface contact. i'm gonna ask u this. NBA official courts are relatively smooth surfaces, yet still i have never seen a sneaker with a smooth undersole be developed exclusively for competition use in professional basket ball. why do u think that is? and dont say they make it for use in all environments, cause it would be easy for nike to have made 5 pairs of jordans just for Mike to use exclusively on the court. My point is, if you want to increase friction or grip between surfaces, you don't only make both smooth and that is what you were trying to imply. With smooth street tires on normal roads u actually make grip less. if you are only about improving surface contact that is completely different and that is not the only factor that affects or improves your friction co- efficient ("u" cause i cant find the proper symbol here and yes i did physics too) and finally the better and safer way to increase surface tire contact on a street vehicle is to get wider rims and tires, NOT drive with smooth streets. /end rant.
BTW the real important physics at play with slicks and semi slick racing tires is not that they are smooth, is more about that they are "stickier" because of the adhesive properties of that type of rubber when its hot, hense the reason they burnout before to lay some track bite down or the race cars keep swerving side to side when the pace car comes out, its to keep the rubber warm and sticky. when it cools too much, those guys do loose grip too.
and now on to our next idiot driver star, which i expect we wont have to wait too long for cause their seems to be alot more than usual these days.
rollingstock wrote:After I wash my car I shine the tyres with evostik.
Can take corners at any speed,
seecarr11 wrote:kamakazi wrote:All observations were done on what can be considered race rubber and they are not controlled...
from rallying
I think it was 1996 when Peugeot had the 206 rally car; 3 different drivers requested different levels of grooves be cut into their tyres to deal with rain that was predicted. The rain never came and the driver with the least amount of grooves for the drying roads had the most grip for the stages to follow.
There was also a rally where Sabastian Loeb opted for worn gravel tyres to run on a stage that was mostly tarmac instead of new gravel tyres that everyone else selected to go with. The rally being considered a gravel event... Slicks were not an option. After winning those particular stages of the event... They inquired as to why he made that particular choice to which he responded the more the tyre is used the more it starts to resemble a slick tyre and as it wears down it provides more grip.
Concerning Street tyres though...
That was from personal testing...I will leave it at that... But it was at a point I was going through a set of Dunlop eco tyres every year.
so you have not been able to cite a source to back up your claim about smooth street tire = more grip other than personal experience. then i suggest you take your car to a solodex or bycc with your smooth street tires and see how well it performs in the dry. For that matter, ask any performance car driver while you are there to run on smooth streets and see how willing they are to do so. Until then, my claim that what u said is bs still stands. you mentioned increased surface contact. i'm gonna ask u this. NBA official courts are relatively smooth surfaces, yet still i have never seen a sneaker with a smooth undersole be developed exclusively for competition use in professional basket ball. why do u think that is? and dont say they make it for use in all environments, cause it would be easy for nike to have made 5 pairs of jordans just for Mike to use exclusively on the court. My point is, if you want to increase friction or grip between surfaces, you don't only make both smooth and that is what you were trying to imply. With smooth street tires on normal roads u actually make grip less. if you are only about improving surface contact that is completely different and that is not the only factor that affects or improves your friction co- efficient ("u" cause i cant find the proper symbol here and yes i did physics too) and finally the better and safer way to increase surface tire contact on a street vehicle is to get wider rims and tires, NOT drive with smooth streets. /end rant.
BTW the real important physics at play with slicks and semi slick racing tires is not that they are smooth, is more about that they are "stickier" because of the adhesive properties of that type of rubber when its hot, hense the reason they burnout before to lay some track bite down or the race cars keep swerving side to side when the pace car comes out, its to keep the rubber warm and sticky. when it cools too much, those guys do loose grip too.
and now on to our next idiot driver star, which i expect we wont have to wait too long for cause their seems to be alot more than usual these days.
rspann wrote:Anybody want good smooth tires? I giving away free. You could get over a hundred per week. (and to think I paying $5 to dump them all the time)
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