Quote: Originally Posted by exchaser Hahaha, his theory has its points.. but maybe he has been watching too much ice rallying... lol The more surface area of the tyre on the road is going to give you more traction.. tyres are grooved to channel water away, so that that rubber can keep in contact with the road surface.. as long as you are not hitting standing water with so much pace that you aquaplane on it.. you can take advantage of more rubber in contact with the road... There's a little bit more to this though, because as you increase the surface area of tyre in contact with the road you decrease the amount of force exerted down on the tyre. i.e. you're spreading the weight of the car over a larger area. Now I'm not an engineer so I can't tell you if that's a significant enough change to give the car less grip, but it's something to think about.

Quote: Originally Posted by bLuj3t There are 4 numbers on the outside of the tyre that tell what month and what year the tyres were made. eg (0406) was made APRIL 2006. I used to have relativly crap tyres on that used to not grip at all and there were made in (0203) :O get up real close and have a look they should be on most tyres I believe the first 2 numbers are the week e.g 4506 - 45th week of 2006 but close enough Some original photos have not been recovered yet.

Quote: Originally Posted by jordy There's a little bit more to this though, because as you increase the surface area of tyre in contact with the road you decrease the amount of force exerted down on the tyre. i.e. you're spreading the weight of the car over a larger area. Now I'm not an engineer so I can't tell you if that's a significant enough change to give the car less grip, but it's something to think about. Yeah... But you are still putting the same weight as before but spreading it out, flat, across 8 inches of road rather than 3 or 4. I think your theory is correct, in that you are spreading the load over a larger surface area (for example if you put a pencil on a piece of paper that is floating on water, it will float, but a pencil on its own would sink) but I feel that that theory works more with buoyancy rather than traction. I'm a little confused. Do you think this is purely a matter of opinion thing or is there more to it?

Quote: Originally Posted by NZ EVLHSV This will also cause oversteer Yes. But at least you die in style.