My Snow/Ice Tire

looking good, I await a ride report

--
thejdw

kington99 said:

A hobnob is an oaty biscuit, the fact that they don't exist in america
just goes to show that you have no culinary heritage 🙂

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that is a nice idea and sweet that u went thru with it! 🙂

but dont u reckon u'll find riding on concrete really strange? and if u
ever do small hops wont the screws wanna push in towards the rim cos of
the pressure of ur weight bouncing up and down? even if u have ducktape
and strip of inner tube inside to hold them in place

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manicpanicmuni said:

that is a nice idea and sweet that u went thru with it! 🙂

but dont u reckon u'll find riding on concrete really strange? and if u
ever do small hops wont the screws wanna push in towards the rim cos of
the pressure of ur weight bouncing up and down? even if u have ducktape
and strip of inner tube inside to hold them in place

Yea, riding on concrete probably would be really strange. But, I don't
plan to put this tire on until it's really snowing. Right now I have a
Duro on my muni.

Yea, I'm curious to see how the screws will hold in place. I will
probably avoid hopping much if at all with this tire. Because the
screws go through the nubs of the tire, they're actually in there
really tight. It wasn't easy screwing them in.

If they don't hold, I'll have to resort to putting bolts on the outside
of the wheel.

My goal is to do some sort of intermission show at a school hockey game
hahaha. Maybe riding around throwing T-shirts into the crowd or
something.

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Brian O. said:

brendan said:

when i flex both arms one looks puny next to the other. Mind you it was
that way after years of badminton...

And maybe playing a little too much with the shuttlecock as well?
Hmm? 😉

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I think the sharp edges on the heads of those 3/4" screws will play
havoc rubbing against the tube, (even with the extra tube material you
lay in for protection). I expect that friction will wear through the
rubber and cause a flat pretty quick.

I hope I'm wrong...but I guess we'll find out once you get a chance to
test it.

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idiorythmic
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idiorythmic said:

I think the sharp edges on the heads of those 3/4" screws will play
havoc rubbing against the tube, (even with the extra tube material you
lay in for protection). I expect that friction will wear through the
rubber and cause a flat pretty quick.

I hope I'm wrong...but I guess we'll find out once you get a chance to
test it.

Haha, I hope you're wrong too. I don't think they'll be much more
damaging than the regular heads...I guess we'll find out.

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Brian O. said:

brendan said:

when i flex both arms one looks puny next to the other. Mind you it was
that way after years of badminton...

And maybe playing a little too much with the shuttlecock as well?
Hmm? 😉

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I hope others see my comment, I just spent a few minutes looking at some
of the older threads regarding home-made studded tires and it seems
lots of people have been doing this, but I haven't seen yet any
discussion of how long the studs last, or if any tube wear occurs.
Maybe some of those people will update us on the long-term performance
of these things.

One thing I notice, on the 'Kold Kutter'
(http://www.koldkutter.com/screwtireproducts.htm) site it appears that
the Kold Kutter studs go in from the -*outside*-, and are just short
enough to avoid penetrating through the tire. This reinforces my
feeling that having anything inside the tire, even rounded screw heads,
is to be avoided.

I'll be watching to see how your experiment pans out.🙂

--
idiorythmic
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Chexjc said:

manicpanicmuni said:

that is a nice idea and sweet that u went thru with it! 🙂

but dont u reckon u'll find riding on concrete really strange? and if u
ever do small hops wont the screws wanna push in towards the rim cos of
the pressure of ur weight bouncing up and down? even if u have ducktape
and strip of inner tube inside to hold them in place

Yea, riding on concrete probably would be really strange. But, I don't
plan to put this tire on until it's really snowing. Right now I have a
Duro on my muni.

Yea, I'm curious to see how the screws will hold in place. I will
probably avoid hopping much if at all with this tire. Because the
screws go through the nubs of the tire, they're actually in there
really tight. It wasn't easy screwing them in.

If they don't hold, I'll have to resort to putting bolts on the outside
of the wheel.

My goal is to do some sort of intermission show at a school hockey game
hahaha. Maybe riding around throwing T-shirts into the crowd or
something.

A hardcore biking guy i know did this exact same thing, and claimed he
could ride on anything during the winter with it... and since he rode
some five or six miles into town a times when people weren't driving
much because of the roads being bad, i believe him.

On the Uni, the grip factor should be even more pronounced, as your
weight is directly over the tire.

Just don't fall on it!

idiorythmic said:

One thing I notice, on the 'Kold Kutter'
(http://www.koldkutter.com/screwtireproducts.htm) site it appears that
the Kold Kutter studs go in from the -*outside*-, and are just short
enough to avoid penetrating through the tire. This reinforces my
feeling that having anything inside the tire, even rounded screw heads,
is to be avoided.

I'll be watching to see how your experiment pans out.🙂

Oh wow, I didn't even notice that before when I looked at their
webpage. That actually seems to make a lot more sense. That way the
screws can't be pushed back into the tire.

I also looked back on some older threads and on some other mountain
bike websites, where a number of people did it this way. Well, I'll see
what happens and I'll definitely post back in this thread when I get
the tire on. If my method fails, I'll probably order some of those
Kold-Kutter screws.

--
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www.myspace.com/thelostguitarist
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Brian O. said:

brendan said:

when i flex both arms one looks puny next to the other. Mind you it was
that way after years of badminton...

And maybe playing a little too much with the shuttlecock as well?
Hmm? 😉

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idiorythmic said:

I think the sharp edges on the heads of those 3/4" screws will play
havoc rubbing against the tube, (even with the extra tube material you
lay in for protection). I expect that friction will wear through the
rubber and cause a flat pretty quick.

I hope I'm wrong...but I guess we'll find out once you get a chance to
test it.

couldn't you get one of the heavier rim tapes and put it on the inside
of the tire, to protect the tube from the screw heads? Some of the
heavy duty nylon stuff would go a long way to preventing a puncture, i
think.

Your screws are sticking out too far... they will possibly fold over
putting more torsion on the knobs nearly defeating the purpose of them.

--
Borgschulze

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Borgschulze said:

Your screws are sticking out too far... they will possibly fold over
putting more torsion on the knobs nearly defeating the purpose of them.

Maybe, you have to remember that the tire has a different, thinner
shape when it's on the rim. Those longer screws on the outside won't
make half as much contact with the ground as the shorter ones closer to
the center will.

They may fold on concrete, but probably not on an inch of snow/ice.

Here is a small collection of links that I looked at:

http://tinyurl.com/2atbq8

http://www.icebike.org/Equipment/tires.htm

http://www.unicyclist.com/forums/showthread.php?t=45022

http://www.unicyclist.com/forums/showthread.php?t=37762

Thanks to UniBrier for finding most of those.

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Brian O. said:

brendan said:

when i flex both arms one looks puny next to the other. Mind you it was
that way after years of badminton...

And maybe playing a little too much with the shuttlecock as well?
Hmm? 😉

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sorry man but hose screws are way to long. go back to the hardware store
and get some 3/8" or 1/2" long screws you want them to stick out
between 1 and 4mm. If they are too long they will fold, possibly
ripping the lug, especially if you are running lower pressures.

I have found that the best screws to use are the self tapping round
head metal screws (like your 5/8" screws) because they will not wear
down as fast as standard metal screws.

You really need to get those sheet metal screws out of there as they
will shred your inner and whatever you put in there to protect it. Use
screws all of the same length as the side lugs are used in turning they
have more of a tendency to fold so you do not want longer studs in
them.

Keep in mind that you still need the tire to slide a little bit when
turning and that it is very easy to get a pinch flat when you have
metal hardware inside the tire so add a second inner-tube split along
the inside and stuck between your tire and tube and keep the tire a
little bit harder than you normally would.

Im not trying to discourage you but help you get the most winter fun
out of your uni

Best of luck

ERIC

edit: I have the 26X2.3 version of that tire as my winter tire on the
front of my bike. I used 90 3/8" #8 Robertson round headed self tapping
metal screws. It works great.

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saskatchewanian

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saskatchewanian said:

sorry man but hose screws are way to long. go back to the hardware store
and get some 3/8" or 1/2" long screws you want them to stick out
between 1 and 4mm. If they are too long they will fold, possibly
ripping the lug, especially if you are running lower pressures.

I have found that the best screws to use are the self tapping round
head metal screws (like your 5/8" screws) because they will not wear
down as fast as standard metal screws.

You really need to get those sheet metal screws out of there as they
will shred your inner and whatever you put in there to protect it. Use
screws all of the same length as the side lugs are used in turning they
have more of a tendency to fold so you do not want longer studs in
them.

Keep in mind that you still need the tire to slide a little bit when
turning and that it is very easy to get a pinch flat when you have
metal hardware inside the tire so add a second inner-tube split along
the inside and stuck between your tire and tube and keep the tire a
little bit harder than you normally would.

Im not trying to discourage you but help you get the most winter fun
out of your uni

Best of luck

ERIC

edit: I have the 26X2.3 version of that tire as my winter tire on the
front of my bike. I used 90 3/8" #8 Robertson round headed self tapping
metal screws. It works great.

Thanks for your advice. What if I were to put the 5/8" screws in to
replace all the of 3/4" screws I have in there?

I know that even the 5/8" are a bit too long...but do you think they'd
work at a really high psi?

After all the work I put into this, I don't really want to take it all
apart and change every screw. I might as well order some Kold-Kutter
screws.

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Brian O. said:

brendan said:

when i flex both arms one looks puny next to the other. Mind you it was
that way after years of badminton...

And maybe playing a little too much with the shuttlecock as well?
Hmm? 😉

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5/8" all around might work, you would stick to packed snow like nothing
else. It may be hard to turn with that much traction. If you have
really high PSI the screws might not fold over but your tire will feel
like a rock. Also remember that PSI changes with temperature, If you
store your uni inside the pressure will increase as the tire warms and
decrease again when you bring it back outside.

If you want to stick with the longer screws using only half as many may
be better for handling. The best way to figure it all out is to
experiment once the snow is on the ground.

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saskatchewanian said:

If you want to stick with the longer screws using only half as many may
be better for handling. The best way to figure it all out is to
experiment once the snow is on the ground.

Very true.

Thanks again for the advice.

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Brian O. said:

brendan said:

when i flex both arms one looks puny next to the other. Mind you it was
that way after years of badminton...

And maybe playing a little too much with the shuttlecock as well?
Hmm? 😉

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I've ridden a mountain bike quite a bit with factory studded tires. The
factory studs stick out only about 1/8" and do a great job on snow and
ice. That's on a mountain bike too, where you don't have all of your
weight on one tire. If the snow is fresh and not packed you don't even
need studs. You're better off with shorter studs than longer ones.
Sasketchewanian knows what he's talking about. Good luck with your
experiement. Half the fun in making something like that is in the
construction.

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ellsworth23
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yea it's actually better to put the screws in the other way, then snip
off the points on the inside. that way the head will grip the snow/ice,
and it won't be able to bend over.

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I'd say just try it the way you have it, then modify it if you don't
like it... see how all the different methods work. I have heard that
that method makes it really squirrely on concrete, but that's not the
point now is it? Nice work... make sure you let us know how it goes.

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madmattunipro

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www.bedfordunicycles.ca

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i did the same thing. the screws caused a pinch flat every time. try
light weight chains looped around the tire. you won't need many. i used
eight for a 20". leave them loose. they will smash into place after
the first ride. =D

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shorewoodmayor
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