Conti sport contact 5 and 6

[plenty]

I am currently running 255/35/18 and 225/45/18 on an E85, a 3.8% difference in circumference. Matching rolling radius only matters on an AWD vehicle.

 

[Mr Tidy]

FWIW mr_wilks used to recommend Kumho Ecstas quite often so I had a set fitted to my MC in 2020 and I've been very pleased with them.

I also went up a profile on the rears to 255/45 x 18 instead of 255/40 for a bit more sidewall and that hasn't been a problem - just means the speedo is more accurate!

 

[Pondrew]

FWIW mr_wilks used to recommend Kumho Ecstas quite often so I had a set fitted to my MC in 2020 and I've been very pleased with them.

I also went up a profile on the rears to 255/45 x 18 instead of 255/40 for a bit more sidewall and that hasn't been a problem - just means the speedo is more accurate!

Thanks Iain. I am now looking at the Kumhos, Dunlops and Goodyear F1 assy 3.

The Kumhos seem quite a bit cheaper, so will make enquiries on Monday. To be honest I am not looking for 'cutting edge' performance, just decent tyres that will cope with everyday driving on a fairly powerful, heavy RWD car.

Going to need a can of tyre weld too!!

 

[smorris_12]

I had Kuhmos when they were still an unrated budget and was jolly impressed with them for performance. Not as good for mileage as the big names but not a ditch finder.

 

[Pondrew]

I had Kuhmos when they were still an unrated budget and was jolly impressed with them for performance. Not as good for mileage as the big names but not a ditch finder.

Cheers. Mileage is not really a concern for me (I get slated constantly by certain 'members' for never using my cars). The car in question has done 900 miles in 7 months!

 

[smorris_12]

Cheers. Mileage is not really a concern for me (I get slated constantly by certain 'members' for never using my cars). The car in question has done 900 miles in 7 months!

Try harder man!

For many years I had no job and no reason to go anywhere much but my E46 would still somehow rack up 14k a year. I assume either someone else had a key or the odo had a built in random number generator. I could add 900 miles by popping out to buy sweets. I've a feeling I went through 230,000 and 240,000 on the same outing.

 

[Mr Tidy]

FWIW mr_wilks used to recommend Kumho Ecstas quite often so I had a set fitted to my MC in 2020 and I've been very pleased with them.

I also went up a profile on the rears to 255/45 x 18 instead of 255/40 for a bit more sidewall and that hasn't been a problem - just means the speedo is more accurate!

Thanks Iain. I am now looking at the Kumhos, Dunlops and Goodyear F1 assy 3.

The Kumhos seem quite a bit cheaper, so will make enquiries on Monday. To be honest I am not looking for 'cutting edge' performance, just decent tyres that will cope with everyday driving on a fairly powerful, heavy RWD car.

Going to need a can of tyre weld too!!

Just thought it may be useful Andrew.

I find the Ecstas fine even when I am pushing on a bit, and they way superior in cooler damp conditions than the MPSS tyres it came with.

When you get Tyreweld don't forget a compressor!

 

[Pondrew]

For many years I had no job and no reason to go anywhere much

For many years I did have a job and had to go everywhere much. Now I'm old and don't need to do that, I just don't! oke:

 

[B21]

I am currently running 255/35/18 and 225/45/18 on an E85, a 3.8% difference in circumference. Matching rolling radius only matters on an AWD vehicle.

That’s a simple and partially incorrect answer..

Some later cars eg G29 have DSCs that cope with dissimilar rolling radius…as you say XDrive cars often mandate identical rolling radius

However some cars, certainly the E89 do require a degree of matching, typically within 2%..

When I inadvertently had a mismatch of around 4% I had DSC issues with various errors if the car was sliding or had wheels spinning, often the errors only arise when the DSC unit has to step in..

 

[plenty]

I certainly stand corrected - thank you.

 

[B21]

I certainly stand corrected - thank you.

I didn’t mean to see this as a correction, more concerned that others may take it as carte Blanche to do something very silly… :tumbleweed: :rofl: