XK / XKR ( X150 ) 2006 - 2014

Spare Tire Survey

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Old Jan 19, 2021 | 02:45 PM
  #61  
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Originally Posted by tampamark
Yeah, but it is so much fun finding the perfect, aggressive knobby tread pattern that looks properly bad-***!

Some of the sports car tires are pretty cool with the directional tread and such, but I find boring compared to 33/35 shopping.
The last 'fun' tires I bought were some 37x12.5 Mickey Thompson Baja Claws. Those were the best dirt/mud/snow tires I could find for my F250. I put less than 3,000 miles on them before I sold that truck.
 
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Old Jan 19, 2021 | 03:10 PM
  #62  
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Originally Posted by kazi
Then my car will be stopping better soon. My tires are almost 7 years old and hard. I'm procrastinating because the tread is above 50%, but want a new set before summer. I've spent most of my life buying 33"-35" all-terrains or mudders so I'm excited to feel the difference between good and bad tires on this car. I didn't know they existed until a couple of months ago, but I will probably be buying "summer" tires for the first time.
Summer treads is what I run exclusively, there is a world of difference. Of course that means I mount Blizzaks or Michelin Ice tires sometime after Thanksgiving. The "studless" technology is amazing, it saved my butt when I hit black ice and had to steer around several accidents, including a cop car. I also use a -1 concept with a smaller diameter wheel to allow a narrower tread in winter for optimal traction. This being said I don't put snow tires on my Jag as it is a fair weather machine. I run a Mercedes, Taurus and Explorer in the wintertime. Good luck with your new tires.
 
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Old Jan 19, 2021 | 04:18 PM
  #63  
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Originally Posted by gkubrak
All other factors being equal (tires, weight, road conditions, etc..) I'll bet the Alcons will yield a shorter stopping distance compared to standard brakes.
You're my kind of gambler, knowing that the deck is stacked in your favor! Alcons have far superior stopping power.
4.2L Brake Specs
Base XK
Front: 326mm/12.8" rotors with single-piston calipers
Rear: 326mm/12.8" rotors with single-piston calipers

XKR
Front: 355mm/14.0" rotors with single-piston calipers
Rear: 326mm/12.8" rotors with single-piston calipers

Alcon Option
Front: 400mm/15.75" rotors with 6-piston calipers
Rear: 350mm/13.78" rotors with 4-piston calipers

FROM THE SALES BROCHURE
XK.......................XKR
 

Last edited by Stuart S; Jan 19, 2021 at 04:23 PM.
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Old Jan 19, 2021 | 06:08 PM
  #64  
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I forget that the 4.2 brakes were tiny (relatively). Yes, Alcons would be far better than the stock brakes.
Well, yeah, that's the point. They are an Optional Upgrade.
 
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Old Jan 19, 2021 | 09:12 PM
  #65  
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Originally Posted by jagophile
Summer treads is what I run exclusively, there is a world of difference. Of course that means I mount Blizzaks or Michelin Ice tires sometime after Thanksgiving. The "studless" technology is amazing, it saved my butt when I hit black ice and had to steer around several accidents, including a cop car. I also use a -1 concept with a smaller diameter wheel to allow a narrower tread in winter for optimal traction. This being said I don't put snow tires on my Jag as it is a fair weather machine. I run a Mercedes, Taurus and Explorer in the wintertime. Good luck with your new tires.
Was the exhaust or the tires louder on the Mickey Thompsons...when you say a "world of difference" I'm assuming better grip off line, but should I expect other benefits like sharper turning or more road feel?
 
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Old Jan 20, 2021 | 05:39 PM
  #66  
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Originally Posted by Cee Jay
The last 'fun' tires I bought were some 37x12.5 Mickey Thompson Baja Claws. Those were the best dirt/mud/snow tires I could find for my F250. I put less than 3,000 miles on them before I sold that truck.
You were very kind to the next owner, those are some sweet tires!
 
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Old Jan 21, 2021 | 10:30 AM
  #67  
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Originally Posted by kazi
Was the exhaust or the tires louder on the Mickey Thompsons...when you say a "world of difference" I'm assuming better grip off line, but should I expect other benefits like sharper turning or more road feel?
No reply on Mickey; yes on better grip, better road feel (that of course is subjective). Sharper turning has more to do with sidewall rigidity than summer/all season. So the extreme case of wearing run-flat tires, it will give very sharp turning, but will also give a feel-everything on the road ride; at least that is what I experienced on my BMW Z4. The summer treads seem to give me better grip in the turns, whereas all-season radials tend to let go sooner. For perspective, I was stopped once by a trooper who said I should not turn so fast; but he responded NO when I asked if the turn I just completed was illegal.
 
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