Unicycling on sand

I went half a metre and found my self 20 centermetres lower, and completely
unable to move! Can anyone tell me how I can ride on sand ? without just jumping
up and down.

(there are 2.54 centimeters per inch, and 100 cms per metre)


Damion Yates - Sheffield Uni, UK. http://www.bath.ac.uk/~exxdmy

Re: Re: Unicycling on sand

Randy Morey wrote:
|> >unable to move! Can anyone tell me how I can ride on sand ?
|>
|> Sorry, never tried it, but has anybody ever made a uni out of a car or
|> motorcycle tire? A wider tire should be a big help. Also, to drive a 4x4
|> vehicle on a beach requires deflating the tires to about 5 to 10 psi.

Steve Gordon, former 100-mile record holder did. I rode it, and its damn hard to
turn and keep you balance. Gets plenty of stares… He usewd a car tyre. I have
an ultimate wheel made form a motorcycle wheel. Not too easy. BTW, it’s trhe
first ultimate wheel ever made in Japan back in 1979 or 1980.

Stay on top, Jack Halpern, IUF Vice president

Re: Unicycling on sand

Damion Yates (seca52%teach@dcs.shef.ac.uk) wrote:
i: I went half a metre and found my self 20 centermetres lower, and completely[/i]
i: unable to move! Can anyone tell me how I can ride on sand ? without just[/i]
i: jumping up and down.[/i]

i: (there are 2.54 centimeters per inch, and 100 cms per metre)[/i]

i: Damion Yates - Sheffield Uni, UK. http://www.bath.ac.uk/~exxdmy[/i]

Dear Damion:

    Speaking simply from an instinctive, not experienced perspective, I
    would say that you would need VERY wide tyres. Some of the
    unicycle-smiths might be able to tell you if this is possible. Off the
    top of my head, I would say that trying to make a unicycle with those
    big all terrain cycle tyres would not be easy.

                                                            Mike.

“I’ve been searching for an easy way to escape the cold light of day.”

                                    -The Hunters and Collectors "Holy Grail"

Re: Unicycling on sand

>I went half a metre and found my self 20 centermetres lower, and completely
>unable to move! Can anyone tell me how I can ride on sand ? without just
>jumping up and down.

Sorry, never tried it, but has anybody ever made a uni out of a car or
motorcycle tire? A wider tire should be a big help. Also, to drive a 4x4 vehicle
on a beach requires deflating the tires to about 5 to 10 psi.

Also, in a recent “On One Wheel,” there is a picture of a well-known Puerto
Rican unicyclist riding his uni on the beach, right INTO the water!

>(there are 2.54 centimeters per inch, and 100 cms per metre)

There are 0.145 psi per Kpa, 6.893 Kpa per psi.

>–
>Damion Yates - Sheffield Uni, UK. http://www.bath.ac.uk/~exxdmy


Randy Morey | ==\ "Those who play the United Technologies Research Center |
|8| |\ sax play twice" East Hartford, CT | |8| __ o| EMAIL TO:
moreyrl@utrc.utc.com | |8|()
| |8|| |
All expressed opinions are mine, | _
_/ except for those that
aren’t…I think|

Re: Unicycling on sand

In article <3viui1$ogm@hippo.shef.ac.uk>, seca52%teach@dcs.shef.ac.uk (Damion
Yates) writes:
|> I went half a metre and found my self 20 centermetres lower, and completely
|> unable to move! Can anyone tell me how I can ride on sand ? without just
|> jumping up and down.
|>
|> (there are 2.54 centimeters per inch, and 100 cms per metre)

I’ve ridden on damp hard packed sand, but thats different. I had a 2.75" wide
MTB tire also. Still left pretty deep tracks!

You need a fat tire with low pressure. I don’t know if you’ll be able to get
your weight spread out over enough area even then. You need to maximize the
contact patch of your tire to the ground.

How about a giraffe with one of those sport utility ATB tires? The kind on those
3 and 4 wheeled motorcycle like things? I’ll bet that wouldn’t sink.

Good luck and let us know! :slight_smile:

36 inches per yard, 39.5 inches per meter.

Eric

Re: Unicycling on sand

In article <moreyrl.33.012655CE@utrc.utc.com>, moreyrl@utrc.utc.com was
overheard to say…
>Also, in a recent “On One Wheel,” there is a picture of a well-known Puerto
>Rican unicyclist riding his uni on the beach, right INTO the water!

Speaking from experience, this is NOT a good idea with an ‘out of the box’ uni.
Most uni’s are not sealed well enough in the crank/pedal to keep out the sand.
After a ride into the beautiful Florida surf, i got to spend an hour or two
cleaning sand out of the bearings and re-lubing my uni.

It was however, tremendous fun. :slight_smile:

-The next person that says ‘someone stole your handlebars!’ is getting their
feet run over.