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Home > Technical > More aggressive tyre tread needed on 19" rims |
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lespes Member Since: 10 Oct 2012 Location: Wilds of Wiltshire Posts: 108 |
General Grabber AT Pirrelli ATR need slight oversize 255x50x19 RRS size believe fit no problems.
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1st Nov 2012 9:58 pm |
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Aero_383 Member Since: 05 Sep 2012 Location: Sussex Posts: 586 |
Hi
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1st Nov 2012 10:08 pm |
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Lyndon3177 Member Since: 15 Sep 2012 Location: Tadley Posts: 49 |
Thanks guys. That's interesting that 255 might fit. I know the boots on my old disco were slightly bigger than those it was supplied with as the spare was slightly smaller because the bigger boot didn't fit on the rear door. Will 255 def fit with no modification to suspension etc... ?
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2nd Nov 2012 6:39 am |
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tenet Member Since: 23 Jul 2009 Location: cotswolds Posts: 1081 |
Others may know better but on a recent experience day we were getting wheel spin on a particular muddy slope. The instructor told me to increase the speed to 1500/2000rpm whilst in "mud and ruts" TR and bingo everything locked and we sailed over the rise. We were in a standard HSE with wrangler aw tyres.
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2nd Nov 2012 8:11 am |
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Lyndon3177 Member Since: 15 Sep 2012 Location: Tadley Posts: 49 |
Tried that last week when I got stuck at the bottom of a grassy slope. Unfortunately the front end was hanging over the edge of a lake margin with 6 ft of water in front of it. Only a reed bed stopping it going any further. The grass was that soft and wet that I had to wedge a log under the wheel to stop it sliding any further as even with the handbrake on and in gear it kept sliding forwards on its own. Had to get a tractor to tow it out in the end. Even a ford maverick with mud tyres nearly got stuck trying to pull me out. It was the fact that the continental contacts were full of mud and would not self clean that did it. I think I might have had a chance if I had a decent AT tyre on. |
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2nd Nov 2012 8:26 am |
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chrisdeeming Member Since: 29 Dec 2011 Location: Sutton Coldfield Posts: 828 |
get some 17" rims much better imo and your not going to curb them in the town either! When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car |
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2nd Nov 2012 8:41 am |
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hinchy Member Since: 08 Jan 2009 Location: Stockport Posts: 779 |
You get the same problem with 18" too. You can put 255 on as a few have done and reported no problems.
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2nd Nov 2012 9:38 am |
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Lyndon3177 Member Since: 15 Sep 2012 Location: Tadley Posts: 49 |
Just spoke to a local tyre fitters. They have a general grabber AS in 255/55 R19 in stock. Not to bad at £160 each fitted. He says they shouldn't be used as they will knacker the diff. How does this work ? Not being a mechanic and think logically (hard enough for me) surely if all four corners are the same I think it's 22mm higher the diff should all be level at the same height. I am sure someone on here will tell me different. |
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2nd Nov 2012 11:33 am |
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Big Dave Member Since: 22 Nov 2009 Location: Yorkshire Posts: 1055 |
If you put 255's on that will increase the diameter of the fitted wheel/tyre then that's going to put your speedo out surely? Not sure the diff story is quite true.
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2nd Nov 2012 12:15 pm |
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hinchy Member Since: 08 Jan 2009 Location: Stockport Posts: 779 |
I know on the 18" when going to the 255 you go down on the profile to 55 from 60 to get the same Dia' may be on the 19" you need to do the same 55 to 50. |
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2nd Nov 2012 12:42 pm |
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lespes Member Since: 10 Oct 2012 Location: Wilds of Wiltshire Posts: 108 |
Think you'll find the 55 profile will cause rub problems speedo will be out by 3-4 mph which will probably mean it will be reading spot on to actual speed.
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2nd Nov 2012 3:06 pm |
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tenet Member Since: 23 Jul 2009 Location: cotswolds Posts: 1081 |
Is this any help - http://www.blackcircles.com/order/tyres/search MY 09 GS manual in Lago Grey, Wood Co arm rest and side bumper strips - now sold.
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2nd Nov 2012 3:08 pm |
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Lyndon3177 Member Since: 15 Sep 2012 Location: Tadley Posts: 49 |
lespes many thanks for the offer I might takwe you up on it at some point. I am not in any rush to change themn want to get Christmas out of the way first. Tenet thanks I will havge a look at theat link.
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2nd Nov 2012 6:25 pm |
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Lyndon3177 Member Since: 15 Sep 2012 Location: Tadley Posts: 49 |
Sorted now got myself some 17" rims and tyres. Now I need to find a tyres to suit my needs but no rush. |
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25th Nov 2012 6:27 pm |
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