22 mph on my guni

David_Stone said:

My watch is programmed to chirp if my speed goes below 10,

I used to have a wife like that, now I have a boss who's just the
same.

Have you had a UPD at these warp speeds yet? Sounds risky to me.:eek:

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Holy [censored] man. That is haulin! I start to get scared of a situation
that I can't run out of if I get over about 12:o

Hat's off to you.

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Mikefule said:

I used to have a wife like that, now I have a boss who's just the same.

LOL!

Quoted message said:

Have you had a UPD at these warp speeds yet? Sounds risky to
me.:eek:

No, but Ken Looi has! It -is- risky, but I know the road well
and am actually holding back a bit (in case I need to correct my
pitch). So far, 20.4 (the speed I actually kept at for a second or two)
is the fastest I've felt comfortable maintaining, but I believe I'm
capable of hitting a speed slightly higher still -- the only problem
being that if I need to speed up a bit BUT CAN'T, they'll be cleaning
me up for weeks.😄

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David_Stone said:

Last night, I hit 22 mph on my guni, according to my very reliable cycle
computer.

That's nearly TWICE the running speed of a world-class kenyan
marathoner! I can't do that speed on my bike! Hmmmm, ok. I do have an
electric "Xkate" skatebaord (cost $1,200!!) that has a 1 HP motor that
will do just about 20 mph, (on smooth, level ground) and that's
SMOKIN'! That's nearly 3X the posted speed limit (8mph) on the beach
bike path! I don't think I could get even close to that speed on my
coker, goin down hill, all out!

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terrybigwheel said:

That's nearly TWICE the running speed of a world-class kenyan
marathoner! I can't do that speed on my bike! Hmmmm, ok. I do have an
electric "Xkate" skatebaord (cost $1,200!!) that has a 1 HP motor that
will do just about 20 mph, (on smooth, level ground) and that's
SMOKIN'! That's nearly 3X the posted speed limit (8mph) on the beach
bike path! I don't think I could get even close to that speed on my
coker, goin down hill, all out!

right, but he's a marathoner and he's trying to maintain that speed to
pace himself. david_stone says 22 mph is his top speed.

good job!! if i went 22 mph on a guni, they'd be scraping me off the
road with a spatula 😉

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22 mph:eek: thats verry verry fast.
My top speed is around 10 mph i think on a 20''

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unitoon said:

right, but he's a marathoner and he's trying to maintain that speed to
pace himself. david_stone says 22 mph is his top speed.

good job!! if i went 22 mph on a guni, they'd be scraping me off the
road with a spatula 😉

What's the wheel size of this "Guni?"

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terrybigwheel said:

That's nearly TWICE the running speed of a world-class kenyan
marathoner! I can't do that speed on my bike!

You need to get a good road racing bicycle. 22 mph is cruising speed
for a good and fit road cyclist. 35 mph plus is sprinting speed or van
drafting speed. 45 mph plus is downhill speed. Road bikes and human
powered speed (with gravity assist at times) are a fun combination.

Bursts of 20 mph and better on a unicycle is impressive. What's also
going to be impressive is seeing 17 mph plus average speeds for the one
hour time trial on a unicycle. It's gonna happen.

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I don't think Ken was going quite 22. Still, I don't think he would have
been quite as injured if he had a simple UPD as opposed to the
unpredictable hub failure.

I think other riders (Zack and Ryan come to mind) have UPDed at these
speeds without serious injury. Then again, they're still young enough
to "bounce"

David_Stone said:

LOL!

No, but Ken Looi has! It -is- risky, but I know the road well
and am actually holding back a bit (in case I need to correct my
pitch). So far, 20.4 (the speed I actually kept at for a second or two)
is the fastest I've felt comfortable maintaining, but I believe I'm
capable of hitting a speed slightly higher still -- the only problem
being that if I need to speed up a bit BUT CAN'T, they'll be cleaning
me up for weeks.😄

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terrybigwheel said:

That's nearly TWICE the running speed of a world-class marathoner! I
can't do that speed on my bike!... I don't think I could get even close
to that speed on my coker, goin down hill, all out!

Well, as pointed out already, marathoners run a quick pace for a LONG
time; they're not sprinting. Actually, I believe that when they -do-
sprint, they can easily reach 15 mph.

As for your Coker, you are probably right when you say that you
couldn't hit that on your Coker. I have hit 21 mph on mine, but I was
using the very unpopular 110mm cranks at the time, which are great for
speed but unideal for sidewalk riding -- they're way too short for most
people to feel comfortable on (including me, as it turns out). 20 mph
on a Coker involves really high cadence -- like 200 or 240 revs/minute?
I can't remember -- and most people have a hard time pedaling that fast
to begin with, not to mention the fear factor from falling (to be
alliterative), which goes up exponentially with your speed!

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john_childs said:

You need to get a good road racing bicycle. 22 mph is cruising speed
for a good and fit road cyclist. 35 mph plus is sprinting speed or van
drafting speed. 45 mph plus is downhill speed. Road bikes and human
powered speed (with gravity assist at times) are a fun combination.

Oh, yeah. I meant to address that, John. Absolutely. 20mph on a bike is
cake. It's not so easy on a flat (depending on the bike), but downhill,
you can easily achieve that speed without even pedaling, if the hill is
long enough.

Quoted message said:

Bursts of 20 mph and better on a unicycle is impressive. What's also
going to be impressive is seeing 17 mph plus average speeds for the one
hour time trial on a unicycle. It's gonna happen.

I agree, but I know I'll never be the one to do it. It's barely possible
for me to maintain 15 or 16 for even a short time now (like 4-5
minutes). I don't think I'll ever be in shape for a 60 minute ride at
top speed.🙁

terrybigwheel said:

What's the wheel size of this "Guni?"

It's the 29" Schwalbe tire. Apparently it's a very 'tall' tire, so in
high gear (with the 1.55:1 ratio), it rides like a 45-46" wheel. I
guess that means that I was in the cadence area of about 170
revs/minute, or nearly 3/second. I should test that.

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Job said:

22 mph:eek: thats verry verry fast.
My top speed is around 10 mph i think on a 20''

Job, that is VERY fast for a 20" wheel! I have also hit that speed on a
small wheel, but it's really hard to do. Good job! Now get yourself a
bigger wheel so we can hear all about your great riding! Best of
luck!🙂

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David_Stone said:

I have hit 21 mph on mine, but I was using the very unpopular 110mm
cranks at the time, which are great for speed but unideal for sidewalk
riding -- they're way too short for most people to feel comfortable on
(including me, as it turns out). 20 mph on a Coker involves really high
cadence -- like 200 or 240 revs/minute?

Your 21 mph on a 36" wheel coresponds to 196 rpm or essentially 200 rpm
cadence. I have ridden BlueShift, a 43" wheel, at what I thought to be
slightly less than 3 rps or 180 rpm downhill which is essentially 20
mph. I UPD'd, went into a roll, and escaped uninjured. I was padded up
with 661's, a helmet, and full fingered gloves. The hydration pack on
back helped also.

What kind of protective gear are you riding with at those speeds? Today
I used skater knee pads and some soft cloth padded elbow covers, full
fingered gloves, and a helmet. On a Coker I use no protective gear at
all.

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Man, that is rugged. Going that fast takes balls of steel, and maybe a
loose screw or two. Good luck with that, hope your UPD's are safe.

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harper said:

Your 21 mph on a 36" wheel coresponds to 196 rpm or essentially 200 rpm
cadence. I have ridden BlueShift, a 43" wheel, at what I thought to be
slightly less than 3 rps or 180 rpm downhill which is essentially 20
mph. I UPD'd, went into a roll, and escaped uninjured. I was padded up
with 661's, a helmet, and full fingered gloves. The hydration pack on
back helped also.

What kind of protective gear are you riding with at those speeds? Today
I used skater knee pads and some soft cloth padded elbow covers, full
fingered gloves, and a helmet. On a Coker I use no protective gear at
all.

Wow! That is a really scary UPD. I can't imagine. It's amazing that you
came out unscathed. We've all had UPDs at much slower speeds that have
been much worse. Generally, when I fall and am wearing wristguards, I
actually REACH for the ground in order to lessen the severity of the
contact.

When I ride the guni, I always wear a helmet and wristguards. I won't
even take them off as I approach my destination in case the gear
disengages. When I go racing, I usually wear elbow and knee pads, but
this last time, I left them somewhere irretrievable (we're in the
process of moving, so they could be a number of places). I was
concerned in case of a UPD at high speed, but I just rode carefully
over a known track, and everything worked out fine.

The funny thing is that as I headed home, I had an unplanned dismount
caused by scraggy road conditions in an area known for them, so I
wasn't going faster than 11 mph. I managed not to 'fall,' but my ankle
was a bit sore afterwards from hitting the ground so hard. It didn't
keep me from setting a new record today for my commute home (normally
25 mins on the Coker, just 20:30 on the guni for 4.5 miles thru
Brooklyn).

Because I've hurt my ankle a few times (as I did yestreen), I've
considered getting a new pair of Active Ankles. I wonder if they'd work
for regular commute-style riding, and I wonder if they'd have helped
with this little ow-ie.

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David, you are a speed demon. Once you went incredibly fast on my
cycle-computer-clad 12" unicycle but I don't remember how fast. Wasn't
it around 8 MPH?

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David_Stone said:

guess that means that I was in the cadence area of about 170
revs/minute, or nearly 3/second. I should test that.

Yes, 22 mph equates to 169.5 rpm, assuming a 3% "wobble loss".

I have a similar setup (only with longer cranks). I keep a riding log
in a spreadsheet that also does cadence calculations and I just
tweaked my last ride to your parameters to check.

I've done around 12mph on my old 20" pashley, but you go into wiggle
territory.

I think the problem with uni'in is if you pedal 2 fast to the point
where is there is no tension in the pedaling, you loose control and
balance.

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