Page 2 of 2 FirstFirst 12
Results 17 to 20 of 20

Thread: Bargain tyres - I've been testing now (for many years)

  1. #17
    I really don't care Dashers's Avatar
    Join Date
    Jun 2016
    Posts
    992
    Thanks
    34
    Thanked
    125 times in 101 posts
    • Dashers's system
      • Motherboard:
      • Gigabyte GA-X99-UD4
      • CPU:
      • Intel i7-5930K
      • Memory:
      • 48GB Corsair DDR4 3000 Quad-channel
      • Storage:
      • Intel 750 PCIe SSD; RAID-0 x2 Samsung 840 EVO; RAID-0 x2 WD Black; RAID-0 x2 Crucial MX500
      • Graphics card(s):
      • MSI GeForce GTX 1070 Ti
      • PSU:
      • CoolerMaster Silent Pro M2 720W
      • Case:
      • Corsair 500R
      • Operating System:
      • Windows 10
      • Monitor(s):
      • Philips 40" 4K AMVA + 23.5" 1080 IPS 72Hz OC
      • Internet:
      • Zen FTTC

    Re: Bargain tyres - I've been testing now (for many years)

    Thanks for the reviews.

    I'm on my second set of PS4, and have been really happy with them. Used to run Eagle F1s before, haven't tried the latest incarnation of those yet. I wince at the price each time I change (all four at a time on 9J wheels), but IMO it's the one of the most important things to invest in: doesn't matter how good your brakes are if the rubber connecting your vehicle to the road isn't optimal.

    I also run winter wheels when the temperature dips to be consistently below 7°C. But I think I invested poorly. I went for slightly skinnier wheels and proper snow tyres, which is fantastic on the two days it snows, but not so good for the cold dry days which we often see in the UK. I wish now I'd gone for a wider wheel and CrossClimates for winter. Still, probably in five years or so when the rubber perishes on the winter wheels, I might switch!

  2. #18
    HEXUS.timelord. Zak33's Avatar
    Join Date
    Jul 2003
    Location
    I'm a Jessie
    Posts
    34,405
    Thanks
    2,703
    Thanked
    2,810 times in 1,729 posts
    • Zak33's system
      • Storage:
      • Kingston HyperX SSD, Hitachi 1Tb
      • Graphics card(s):
      • Nvidia 1060
      • PSU:
      • Coolermaster 800w
      • Case:
      • Silverstone Fortress FT01
      • Operating System:
      • Win10
      • Internet:
      • Zen FTC uber speedy

    Re: Bargain tyres - I've been testing now (for many years)

    the narrowness isn't the problem... narrow tyres have as much grip as wider tyres in the dry and more in the wet.

    it's the compound and the tread pattern that's not so good in regular winter.

    I drive all seasons all year round now.. never swap. Have done for years.

    Quote Originally Posted by Advice Trinity by Knoxville
    "The second you aren't paying attention to the tool you're using, it will take your fingers from you. It does not know sympathy." |
    "If you don't gaffer it, it will gaffer you" | "Belt and braces"

  3. #19
    Banhammer in peace PeterB kalniel's Avatar
    Join Date
    Aug 2005
    Posts
    29,215
    Thanks
    1,526
    Thanked
    2,938 times in 2,381 posts
    • kalniel's system
      • Motherboard:
      • Gigabyte X58A UD3R rev 2
      • CPU:
      • Intel Xeon X5680
      • Memory:
      • 12gb DDR3 2000
      • Graphics card(s):
      • nVidia GTX 1060 6GB
      • PSU:
      • Seasonic 600W
      • Case:
      • Cooler Master HAF 912
      • Operating System:
      • Win 10 Pro x64
      • Monitor(s):
      • Dell U2311H
      • Internet:
      • O2 8mbps

    Re: Bargain tyres - I've been testing now (for many years)

    Quote Originally Posted by Zak33 View Post
    narrow tyres have as much grip as wider tyres in the dry
    I'm not sure that's true.
    and more in the wet.
    Depends.

    While the total force into the road is no different (and thus, spread over a larger area with a wider tyre), the adhesion is higher - you are forming more bonds between the tyre and the road. So in the dry, wider tyres do have more grip. In the wet that's also true, so long as you can disperse (mechanically or chemically) the water preventing the tyre from adhering, it's just that with a wider tyre you have to disperse more, so if you fail to do that then you reduce adhesion.

    Where you have a lot of water/snow/mud then a narrow tyre can cut through to the road underneath more easily.

    it's the compound and the tread pattern that's not so good in regular winter.

    I drive all seasons all year round now.. never swap. Have done for years.

  4. #20
    Senior Member
    Join Date
    Jan 2005
    Location
    Manchester
    Posts
    2,898
    Thanks
    67
    Thanked
    179 times in 134 posts
    • Butcher's system
      • Motherboard:
      • MSI Z97 Gaming 3
      • CPU:
      • i7-4790K
      • Memory:
      • 8 GB Corsair 1866 MHz
      • Storage:
      • 120GB SSD, 240GB SSD, 2TB HDD
      • Graphics card(s):
      • MSI GTX 970
      • PSU:
      • Antec 650W
      • Case:
      • Big Black Cube!
      • Operating System:
      • Windows 7

    Re: Bargain tyres - I've been testing now (for many years)

    Quote Originally Posted by kalniel View Post
    While the total force into the road is no different (and thus, spread over a larger area with a wider tyre), the adhesion is higher - you are forming more bonds between the tyre and the road. So in the dry, wider tyres do have more grip. In the wet that's also true, so long as you can disperse (mechanically or chemically) the water preventing the tyre from adhering, it's just that with a wider tyre you have to disperse more, so if you fail to do that then you reduce adhesion.

    Where you have a lot of water/snow/mud then a narrow tyre can cut through to the road underneath more easily.
    Exactly. The normal argument runs that narrower tyres have a higher pressure exerted which counteracts the smaller contact patch. But it doesn't as tyre grip is non linear - it scales faster with increasing contact area than with pressure. Hence wide tyres have more grip than narrow.

Page 2 of 2 FirstFirst 12

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •