quick release for wheel??? has it been done?

Just wondering if anyone has a quick release for a unicycle wheel? I havent seen one so im in the process of designing one which i think will work, just wondering if its been done befor?

JAmes

Interesting idea. Some of the DH and freeride front forks have an oversized axle and a funky quick release for the axle. The forks might give you an idea for what might work for a quick release unicycle wheel. For example the Marzocchi Monster T with the QR20PLUS drop-outs.

See http://www.marzocchi.com/eng/spa/products/default.asp?redir=prod2002.asp

john_childs

true, but there are problems with it!

i was modeling my idea of the rock shox psylo idea, but soon found out that there are problems for a unicycle, ie, two bolt on either side of the axle instead of one, which would in turn need two realese bolts to make it a quick release.

also, there’s the problem of hitting bolts on walls and such, but i think ive got it worked out! ill try and fininsh my design ideas and get them posted soon!

Ps, im emailing unicycle.com for info on parts but they havent responded three times, anyone know why? im in australia and email is the cheapest way to get in touch with them!

cheers, James

john_childs <forum.member@unicyclist.com> wrote in message news:<a4d6rh$4k6$1@laurel.tc.umn.edu>…
> Interesting idea. Some of the DH and freeride front forks have an
> oversized axle and a funky quick release for the axle. The forks
> might give you an idea for what might work for a quick release
> unicycle wheel. For example the Marzocchi Monster T with the QR20PLUS
> drop-outs.
>
> See
> http://www.marzocchi.com/eng/spa/products/default.asp?redir=prod2002.asp
> john_childs

I wonder if they’ll have enough strength to grip the bearings securely
enough? They look like they’re relying on the fact that the axle
doesn’t rotate and the wheel has the bearings. A bigger diameter hole
may accept uni bearings but I think it may need beefed up a bit. Looks
great though!

A while ago I thought of just changing one of the bolts on a standard
bearing holder for a seatpost quick release and cutting a slot in one
of the lower bolt holes. Then I realised that this would be totally
useless if you do any grinds, pedal hangs etc as this would probably
break the setup. It might be a possibility for more sedate riding
though.

Sorry, another of my engineering type posts again. I’ll post about my
unicycling exploits when I’m allowed to unbox my Pashley. Only 3 weeks
to go…

Have fun!

Graeme

It would work if one side of the bearing holder was hinged instead of
using a bolt. And since you don’t need as much force as a quick release
cam provides, you could just use a wing nut with a lock washer under it.
I’m sure I’ve seen holders like this at work. Cheers, Joe in Iowa
-----Original Message-----

From: rsu-admin@unicycling.org ["]mailto:rsu-admin@unicycling.org] On
Behalf Of jimmytrialsrider
Sent: Wednesday, February 13, 2002 6:57 AM
To: rsu@unicycling.org
Subject: Re: quick release for wheel??? has it been done?

i was modeling my idea of the rock shox psylo idea, but soon found out
that there are problems for a unicycle, ie, two bolt on either side of
the axle instead of one, which would in turn need two realese bolts to
make it a quick release.

cheers, James

> It would work if one side of the bearing holder was hinged
> instead of using a bolt. And since you don’t need as much
> force as a quick release cam provides, you could just use
> a wing nut with a lock washer under it.

This sounds like a workable solution. But I wouldn’t use a wing nut, or
anything else that might come loose from active riding.

I would start by questioning just how “quick” you want your wheel to
release. Don’t want to carry tools? A little 5mm allen wrench takes the
wheel off both of my MUnis, and it hardly weighs a thing. But taking off and
putting on the wheel is a bit of a hassle, so I wouldn’t mind an easier
setup.

If one were to hand-machine a hinged bearing holder, a cammed lever could be
used to hold it tight. This lever would have to be shaped in such a way to
not be caught by the foot or pants while pedaling. The hinge would have to
be robust enough to take all the stress of hard pedaling and jumping.

As mentioned above, the clamp does not need to be real tight, just snug
against the bearings and not allowing it to move side to side.

In the 80’s, somebody in Puerto Rico was making an “improvement” on cheap
lolipop-bearing unicycles, by using regular seat post clamps at the bottom
of the fork on each side to provide a much stronger hold. This would be
similar, only sideways and welded to the bottom of the fork.

Enjoy,
John Foss, the Uni-Cyclone
jfoss@unicycling.com
www.unicycling.com

“You’re not supposed to wash your Roach armor” - Nathan Hoover, on safety
equipment cleaning methods

> It would work if one side of the bearing holder was hinged
> instead of using a bolt. And since you don’t need as much
> force as a quick release cam provides, you could just use
> a wing nut with a lock washer under it.

This sounds like a workable solution. But I wouldn’t use a wing nut, or
anything else that might come loose from active riding.

I would start by questioning just how “quick” you want your wheel to
release. Don’t want to carry tools? A little 5mm allen wrench takes the
wheel off both of my MUnis, and it hardly weighs a thing. But taking off and
putting on the wheel is a bit of a hassle, so I wouldn’t mind an easier
setup.

If one were to hand-machine a hinged bearing holder, a cammed lever could be
used to hold it tight. This lever would have to be shaped in such a way to
not be caught by the foot or pants while pedaling. The hinge would have to
be robust enough to take all the stress of hard pedaling and jumping.

As mentioned above, the clamp does not need to be real tight, just snug
against the bearings and not allowing it to move side to side.

In the 80’s, somebody in Puerto Rico was making an “improvement” on cheap
lolipop-bearing unicycles, by using regular seat post clamps at the bottom
of the fork on each side to provide a much stronger hold. This would be
similar, only sideways and welded to the bottom of the fork.

Enjoy,
John Foss, the Uni-Cyclone
jfoss@unicycling.com
www.unicycling.com

“You’re not supposed to wash your Roach armor” - Nathan Hoover, on safety
equipment cleaning methods

----- Original Message -----
From: jimmytrialsrider <forum.member@unicyclist.com>

> i was modeling my idea of the rock shox psylo idea, but soon found out
> that there are problems for a unicycle, ie, two bolt on either side of
> the axle instead of one, which would in turn need two realese bolts to
> make it a quick release.
>
> also, there’s the problem of hitting bolts
> on walls and such, but i think ive got it worked out! ill try and
> fininsh my design ideas and get them posted soon!

I don’t what you call them but how about using the type of latch
that you see on some suitcases or trunks. A loop of heavy wire
goes over a hook and a handle is pushed down that pulls it tight.
Instead of the loop of wire use a metal strap that would replace
the bottom half of a main bearing type of bearing holder. One on
each side. Just flip them open and take the wheel off. I hope I
explained that clear enough.

> Ps, im emailing
> unicycle.com for info on parts but they havent responded three times,
> anyone know why? im in australia and email is the cheapest way to get
> in touch with them!

No help on that.

> cheers, James
>
>
>
>
> –
> jimmytrialsrider

Lowell