Foxsake Posted August 20, 2017 Report Share Posted August 20, 2017 I will need some new tyres soon, they currently catch slightly on the rears. I was wondering what size i need to go down to. To achieve a tyre stretch - which also hopefully reduces the walls catching the arches. Sizes in use currently - Front - 235/35/19Rear - 265/30/19 Thanks Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
mjn Posted August 20, 2017 Report Share Posted August 20, 2017 You're gonna have to tell us how wide your wheels are! Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 20, 2017 Author Report Share Posted August 20, 2017 You're gonna have to tell us how wide your wheels are!Not too technically minded, never had to change the tyres in 4yrs of ownership. How do i find this out?Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
momo Posted August 20, 2017 Report Share Posted August 20, 2017 Maybe post a pic of your wheels if they're OEM or link to the ones you bought.. It all depends on width of wheel and offset (how far the lip sits away from the hub). If it's only slightly rubbing it sounds like 255/30/19 will work. Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 20, 2017 Author Report Share Posted August 20, 2017 Genuine Alpinas. Will take pics tomo in the daylightSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 20, 2017 Author Report Share Posted August 20, 2017 Maybe post a pic of your wheels if they're OEM or link to the ones you bought.. It all depends on width of wheel and offset (how far the lip sits away from the hub). If it's only slightly rubbing it sounds like 255/30/19 will work.How do i measure these, Obviously sounds like i take the wheels off? ThanksSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
momo Posted August 21, 2017 Report Share Posted August 21, 2017 It's usually stamped on the inside of the wheel, generally on either the hub or one of the spokes.. Are they OEM wheels? I can't tell from your avatar pic.. Quote Link to comment Share on other sites More sharing options...
mjn Posted August 21, 2017 Report Share Posted August 21, 2017 Genuine 19" Alpinas? Aren't they 8.5J and 9.5J? Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 21, 2017 Author Report Share Posted August 21, 2017 It's usually stamped on the inside of the wheel, generally on either the hub or one of the spokes.. Are they OEM wheels? I can't tell from your avatar pic..The avatar pic is some Style 32's i stupidly sold previously.Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 21, 2017 Author Report Share Posted August 21, 2017 Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
momo Posted August 22, 2017 Report Share Posted August 22, 2017 They look like genuine Alpina's (air valve under the central hub cap, I can't see it in the pic anyway)? I think they might give you the dimensions/offsets on the front side of the hub under the centre cap? Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 22, 2017 Author Report Share Posted August 22, 2017 They look like genuine Alpina's (air valve under the central hub cap, I can't see it in the pic anyway)? I think they might give you the dimensions/offsets on the front side of the hub under the centre cap?Yes its under the cap. This is only removed with a security key and then you can access the Valve/Locking Nuts.I will have a look later tonight or the weekend.Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Daz 330 Cs Posted August 22, 2017 Report Share Posted August 22, 2017 I'm not surprised you're getting rubbing, a 265/30 is too wide. Even an M3 only uses a 255. As above, a 255/30 will be better, it will be a slightly lower profile than a 265/30 as well. Quote Link to comment Share on other sites More sharing options...
Daz 330 Cs Posted August 22, 2017 Report Share Posted August 22, 2017 Ps. A 255/30 on a 9.5J rim isn't even a stretch. Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 22, 2017 Author Report Share Posted August 22, 2017 Think the wheels may have came off E39. They were bolted on when i brought the car. Here is the centre cap information as requested, i think i will have to take the wheels off to get the size.Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
mjn Posted August 22, 2017 Report Share Posted August 22, 2017 No, the sizes will be on the wheel under the cap you just removed. I would try 255/30/19 on a 9.5j alloy. momo 1 Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 23, 2017 Author Report Share Posted August 23, 2017 Sizes are as follows - Front - 8.5J 235/35/19Rear 9.5J265/30/19What sizes are best to reduce/eliminate rubbing.What sizes are best for tyre stretching.ThanksSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 23, 2017 Author Report Share Posted August 23, 2017 Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 23, 2017 Author Report Share Posted August 23, 2017 I think the fronts do slightly catch on the inside at full lock?So a recommended size for the fronts too please.Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
momo Posted August 23, 2017 Report Share Posted August 23, 2017 Basically go 10 narrower on both front and rear.. So 225/35/19 front 255/30/19 rear The profile is a percentage of the width so will be slightly lower profile (not enough to knock out the speedo so don't worry there). You should have more clearance all around that way. Quote Link to comment Share on other sites More sharing options...
mjn Posted August 23, 2017 Report Share Posted August 23, 2017 225/35/19 and 255/30/19 are perfect for 8.5j and 9.5j The speedo is spot on. Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 23, 2017 Author Report Share Posted August 23, 2017 Thank you guys! This is much appreciated, especially when i can make a saving ££'s too.Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Foxsake Posted August 29, 2017 Author Report Share Posted August 29, 2017 225/35/19 and 255/30/19 are perfect for 8.5j and 9.5j The speedo is spot on.Would the speedo be affected if the rears were upped to "35's?Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
mjn Posted August 30, 2017 Report Share Posted August 30, 2017 17 hours ago, Foxsake said: Would the speedo be affected if the rears were upped to "35's? Sent from my iPhone using Tapatalk Yes. Get your calculator out or use www.willtheyfit.com to check the difference. Quote Link to comment Share on other sites More sharing options...
Daz 330 Cs Posted August 31, 2017 Report Share Posted August 31, 2017 On 29/08/2017 at 19:36, Foxsake said: Would the speedo be affected if the rears were upped to "35's? Sent from my iPhone using Tapatalk Yes, it's quite a difference in sidewall height. Quote Link to comment Share on other sites More sharing options...
