Miyata Giraffe

On Tue, 2 Jun 1998, Dirk Iwema wrote:

> John Foss writes about Miyata giraffes:
>
> > The lighter weight makes it more responsive, but may take away from it in
> > the strength department. I don’t have any experience with frame strength on
> > the Miyata, but the A-frame shape and shorter length are advantages in the
> > design. Any comments from Miyata giraffe owners? If you plan to do running
> > mounts or other frame-stressing tricks, you might want to get one that’s
> > built for adults (the Japanese unicycle market is probably 90% elementary to
> > middle school-aged kids).
> >
> I’ve had mine for about 5 or 6 years now. I don’t use it alot so it’s still in
> great shape. Bill Gilbertson also has a Miyata giraffe. I think that he has
> bent his frame (doing running mounts.) He will have his own thoughts and
> opinions.

While I don’t personally own a Miyata ‘SkyCycle’, our club owns three of them.
They tend to work fine as long they are not too heavily abused (running mounts
put a lot of stress on a frame). But, the ones that the club owns were bought
many years ago. The Miyata SkyCycles have been somewhat redisgned and look much
stronger. I would be curious to know if they are indeed stronger. Anybody have a
chance to compare?


cotter@skypoint.com Twin City Unicycle Club - President Andy Cotter Unicycling
Society of America - Vice President USA home page http://www.unicycling.org/usa/

RE: Miyata Giraffe

My Miyata SkyCycle is about 5 years old. The ones owned by the TCUC are
about 8 years old. The 8 year old ones do not have as strong a frame. My
frame has not bent.

I am very hard on unicycles and my giraffe is no exception. I do a running
mount, hop, a 180 uni-spin (jump up off the seat, spin the uni 180 degrees, and
land back on - see http://www.calweb.com/~unifoss/nuc/nuc96.htm ), and hop over
objects. I weigh about 195 clothed (which is how I usually ride:>)

I "taco"ed my wheel trying to hop on wheel. I have replaced the wheel twice,
most recently with a high quality Sun alloy which appears to be really strong.
My wheel only has 28 spokes. I understand that MiyataUSA SkyCycles use alloy
rims with 36 spokes which should be far superior.

The seat post extension has bent (broke one). I have recently eliminated it and
had a custom made fat long cro-mo seatpost made. Hopefully, its additional
strength will not cause the frame to bend.

My crank arms are hopelessly bent. I use a monster-sized wrench to bend them
back. I am told the new Miyatas have stronger cranks.

I like the Miyata. Its the right height for me. Any taller hurts my knees when I
fall or dismount. The light weight is much more responsive. TUF are way too
heavy. Sem makes 2 models. Their deluxe chrome model is excellent but too tall
for me. I would investigate their XL model before buying a Miyata.

Bill Gilbertson, Twin City Unicycle Club, Shoreview, Minnesota
----------
From: Andy Cotter[SMTP:cotter@skypoint.com] Sent: Tuesday, June 02, 1998
1:34 PM To: rec.sport.unicycling Subject: Re: Miyata Giraffe

    On Tue, 2 Jun 1998, Dirk Iwema wrote:

> John Foss writes about Miyata giraffes:
>
> > The lighter weight makes it more responsive, but may take
away from it
> > in the strength department. I don’t have any experience with
frame
> > strength on the Miyata, but the A-frame shape and shorter
length are
> > advantages in the design. Any comments from Miyata giraffe
owners? If
> > you plan to do running mounts or other frame-stressing
tricks, you might
> > want to get one that’s built for adults (the Japanese
unicycle market is
> > probably 90% elementary to middle school-aged kids).
> >
> I’ve had mine for about 5 or 6 years now. I don’t use it alot
so
> it’s still in great shape. Bill Gilbertson also has a Miyata
giraffe.
> I think that he has bent his frame (doing running mounts.) He will
> have his own thoughts and opinions.

    While I don't personally own a Miyata 'SkyCycle', our club owns three of
    them. They tend to work fine as long they are not too heavily abused
    (running mounts put a lot of stress on a frame). But, the ones that the
    club owns were bought many years ago. The Miyata SkyCycles have been
    somewhat redisgned and look much stronger. I would be curious to know if
    they are indeed stronger. Anybody have a chance to compare?


    cotter@skypoint.com Twin City Unicycle Club - President Andy Cotter
    Unicycling Society of America - Vice President USA home page
    <a href="http://www.unicycling.org/usa/">http://www.unicycling.org/usa/</a>

RE: Miyata Giraffe

I just read about a 28 spoke wheel from Mr. Gilbertson. You are right in that
a 36 spoke wheel would be stronger. However, you can get a 48 spoke rim from a
tandem bicycle source. These would be used on the rear wheel for loaded
touring or racing. I have personally seen a 72 spoke wheel built up with a
large flange Campagnolo hub(originally 36 spoke) that was drilled out for the
extra 36 spokes. It was on a tandem rig. I don’t know what the rim was. But I
bet a single wall rim. And yes, if you could’nt tell… I am a bicycle
mechanic. There is also a new downhill MTB rim out that would be fantastic for
MUNI. Very WIDE and strong. I’ll check out the brand and get back. BTW, I"ve
recently bought my first uni. A 24" Schwinn. After reading posts on this
group, I’ve learned that it is a heavy beast. But I do need something quite
strong. I’m 6’-5" tall and 300lbs. Now if I can just keep from falling and
doing DEEP IMPACTS!

RE: Miyata Giraffe

I have seen 72 spoke rims on bikes also. A lot of LowRider bikes have 72 or more
spokes. Some even have gold plated rims. Pick up a copy of LowRider magazine or
see http://www.luxurylowrider.com/parlr.htm#anchor894303

    ----------
    From: Paul Ross Milner[SMTP:bd804@scn.org] Sent: Thursday, June 04, 1998
    12:56 AM To: Gilbertson, William R
    Cc:  rec.sport.unicycling; 'miyata sales' Subject: RE: Miyata Giraffe

     I just read about a 28 spoke wheel from Mr. Gilbertson. You are right
     in that a 36 spoke wheel would be stronger. However, you can get a 48
     spoke rim from a tandem bicycle source. These would be used on the rear
     wheel for loaded touring or racing. I have personally seen a 72 spoke
     wheel built up with a large flange Campagnolo hub(originally 36 spoke)
     that was drilled out for the extra 36 spokes. It was on a tandem rig. I
     don't know what the rim was. But I bet a single wall rim. And yes, if
     you could'nt tell... I am a bicycle mechanic. There is also a new
     downhill MTB rim out that would be fantastic for MUNI. Very WIDE and
     strong. I'll check out the brand and get back. BTW, I"ve recently
     bought my first uni. A 24" Schwinn. After reading posts on this group,
     I've learned that it is a heavy beast. But I do need something quite
     strong. I'm 6'-5" tall and 300lbs. Now if I can just keep from falling
     and doing DEEP IMPACTS!