Advice please - studding an old pair of tyres for commuting

shouldbeinbed
shouldbeinbed Posts: 2,660
edited February 2010 in The bottom bracket
I fancy having a punt as much to see how it pans out as real live genuine need, although this winter has been scarier and slushier than any othres for me, and with studs I think I'll be safe on my regular commute rather than the longer buiser main arterial roads.

I've got some old blocky tyres and some 3 x 10mm self tapping round head screws. I'm erckoning on about 40-45 total per tyre alternately spaced either side

either way theres going to be trimming the screws so I'm wondering whether it's better to screw them from the outside of the block, leaving a nicer rounded profile to grip with and dremell off the inner protrusion, or drill the block from the outside as a guide hole and screw up from the inside (usual protocol)

I'm tempted by leaving the heads exposed as it looks like it'll give the profile and grip I'm likely to need on tarmac back roads and hardish trails with a more ground (and floor) friendly result - with the downside that any sharp jaggy bits after trimming will be inside the tyre!

I'd appreciate any advice from the other Heath Robinsons out there before I get too far into it either way. will a rounded outer push into ice as well as a flattened screw thread

I know I've missed the bad snow but figure we've still got a good bit more cold to come yet and I cycle regularly in the sub zero mornings and evenings.

thanks in advance.

Comments

  • Look on bikeforums.com under the winter section there are pages and pages of info and tips!
    Carbon fibre, it's all nonsense. Drink beer. Ride a steel bike. Don't be a ponce.
  • bexley5200
    bexley5200 Posts: 692
    edited February 2010
    shut up why would you do that,you will be on the floor if you hit a drain cover on a bend
    going downhill slowly
  • downfader
    downfader Posts: 3,686
    bexley5200 wrote:
    shut the fuct up why would you do that,you will be on the floor if you hit a drain cover on a bend

    Why so abusive? :?
    fancy having a punt as much to see how it pans out as real live genuine need, although this winter has been scarier and slushier than any othres for me, and with studs I think I'll be safe on my regular commute rather than the longer buiser main arterial roads.

    I've got some old blocky tyres and some 3 x 10mm self tapping round head screws. I'm erckoning on about 40-45 total per tyre alternately spaced either side

    either way theres going to be trimming the screws so I'm wondering whether it's better to screw them from the outside of the block, leaving a nicer rounded profile to grip with and dremell off the inner protrusion, or drill the block from the outside as a guide hole and screw up from the inside (usual protocol)

    I'm tempted by leaving the heads exposed as it looks like it'll give the profile and grip I'm likely to need on tarmac back roads and hardish trails with a more ground (and floor) friendly result - with the downside that any sharp jaggy bits after trimming will be inside the tyre!

    I'd appreciate any advice from the other Heath Robinsons out there before I get too far into it either way. will a rounded outer push into ice as well as a flattened screw thread

    I know I've missed the bad snow but figure we've still got a good bit more cold to come yet and I cycle regularly in the sub zero mornings and evenings.

    thanks in advance.

    There were also a couple of blogs and a couple of youtube videos on this. I've sadly lost both sets of links (though did manage to make a "winter playlist" on youtube)

    From the gist of the blogs I remember the guy screwed the thing in from the center so the point came outside by about 1mm. He also put a strip of kevlar material in there to cover the heads and stop punctures.

    Keep meaning to try it but need a spare bike and tyres first. :wink: If I do I'll make a video hopefully
  • ravey1981
    ravey1981 Posts: 1,111
    What about pre drilling the knobs then putting a threaded grub screw from the inside of the tyre. If you get the right length grub screw you could screw them in so the "head" is right inside the tyre. Then seal/protect by using silicone sealant in the holes from the inside of the tyre...
  • ravey1981 wrote:
    What about pre drilling the knobs then putting a threaded grub screw from the inside of the tyre. If you get the right length grub screw you could screw them in so the "head" is right inside the tyre. Then seal/protect by using silicone sealant in the holes from the inside of the tyre...

    thats pretty much what I did with them used an wl and self tappers so as not to create as much of a hole in the knobblies- I went for the points out option & not tried them yet, secretly I'm oping they're a harbinger od spring.

    cheers all (bar 1 :wink: )
  • bexley5200 wrote:
    shut the fuct up why would you do that,you will be on the floor if you hit a drain cover on a bend

    Thanks for such a positive contribution.

    That'll happen pretty much without studs too if its icy or even just wet if you're not watching and TBH there's lots more tarmac and trail than drain covers on bends in my commutes.

    This winter there's also been a lot of deep slush and packed/black ice on the roads that has been pretty leery and gives mile upon mile of that wet drain cover experience. If I can try something different with an obsolete set of tyres and a couple of quids worth of screws that saves me from the sort of big off that gb155 has had recently round my way I'll give it a bash.
  • ravey1981
    ravey1981 Posts: 1,111
    So the screw heads are on the inside of the tyre? Won't that put pressure on the tube when you inflate them? Interesting to see if it works... Now all you need is some ice!
  • ravey1981 wrote:
    So the screw heads are on the inside of the tyre? Won't that put pressure on the tube when you inflate them? Interesting to see if it works... Now all you need is some ice!

    I've duck taped over the individual screw heads for a touch more stabiility and have one of those gel like p***ture liners in there to mitigate the heads, they're round headed and if its Icy, I'll be runnng at lower pressure anyway so hopefully I'll be ok. If I get to use them I'll report back.

    are you a night worker, insomniac or watching the superbowl?

    Go Saints.
  • Ah, re-inventing the wheel. How about...

    http://www.schwalbe.co.uk/c1-1212-spikes.html
    We need a bigger boat.

    Giant OCR 4
    Trek Madone 5.2
    Ridgeback Speed (FCN 15)
  • BiggerBoat wrote:
    Ah, re-inventing the wheel. How about...

    http://www.schwalbe.co.uk/c1-1212-spikes.html

    I am Mr Heath Robinson and would rather have a fettle for a fiver with otherwise obsolete bits than pay £40 odd per tyre for ones made by competent professional :wink:
  • ravey1981
    ravey1981 Posts: 1,111
    Indeed......its more fun to go in the garage and make things anyway :) Even if nine times out of ten it ends up costing you loads and doesn't work :lol:
  • ravey1981 wrote:
    Indeed......its more fun to go in the garage and make things anyway :) Even if nine times out of ten it ends up costing you loads and doesn't work :lol:


    you've seen previous examples of my work then :oops:
  • skyd0g
    skyd0g Posts: 2,540
    Please keep on working on Project Stud!

    ...if for no other reason than by the time you have completed the project, sod's law will dictate that this will guarantee fine weather for all to enjoy. :D
    Cycling weakly
  • I'd just screw inside out, with heads as flush to the tyre as you can. Then glue an old inner tube to the inside of the tyre to protect your inflated innertube.