Riding the NEW uni.5

I have now had an opportunity to put about 10 miles on the uni.5. I have to learn how to ride it again sometime so I can keep up in the 10k and see what the backs of Gilby’s, Foss’, and the Stones’ shirts look like…at least for a few minutes. And THEY’LL be behind the fast guys.

Hey, this is not the unicycle I bid farewell to in March. This new wheel weighs nothing and is stiff and true. The tire, fully inflated, is round and rock hard. Riding it is something like riding a Coker with no rolling resistance. Thanks for the wheel setup, Drummond. It is a very fine, high-tech addition. The tire accentuates road crowns and wants to lean toward the gutter. That takes some getting used to.

I free-mounted on the first try (I’ve been this route before and didn’t want to fail). I found that the rolling mount that John Childs used on it in March was the easiest and I have even mounted going uphill now. After the initial success I have experimented and missed LOTS of mounts.

Riding it on the flats and downhills is faster than I remember. The uphills with the 5" cranks is harder than I remember but no slower. The backlash seems about the same as I remember it to be. It slips into the background after awhile.

Whoever tossed in the Odessey pedals, thanks heaps. I think that might have been Nathan. They are infinitely better, more grippy, and more comfortable than the Torker cheapos it started with.

There were a couple of pairs of 5" aluminum cranks. I put on the black ones. They smooth out the ride compared to the 6" cranks it had at birth. I will stick with that length and try to train with it but they are initially tough for a pansy like me to pedal with. Many crank thanks to all donaters of cranks.

The new frame is great and looks like it will accept a tractor tire if you want it to. My legs don’t rub the frame sides and it seems to fit perfectly. Thanks to John Broderick and the Uni-Psychos. You guys did a great job on the transplant and the frame is much, much better than the original.

Whoever threw in the Viscount seats, thanks alot. I now have the three seats I need mounted on 200mm, 300mm, and 400mm seat posts so all sizes can ride.

Sorry if it’s been asked before, but are there any plans for a production version so that we could all get our greedy little hands on that juicy looking hub?

Ken :slight_smile:

Re: Riding the NEW uni.5

I was much more comfortable with the Semcycle frame, and the extra clearance it provided. I saw a lot of rub marks on the Torker frame so figured it would be a worthwhile improvement. Did you get a look at the polaroids of the operation?

John

backlash measurement

I measured the backlash after riding in to work today. I saw 0.031" at the end of a 5.5" crank. This translates to 0.034" at the end of a 6" crank. The measurements at the end of a 6" crank as I remember them and the approximate mileage at each measurement are

0.020" Seattle 0 miles
0.030" Seattle 14 miles
0.018" Seattle 25 miles
0.040" Oklahoma City about 150 miles
0.025" Jackson about 200 miles
0.025" Minneapolis about 350 miles
0.041" Pocatello about 350 miles
0.034" Seattle about 400 miles

The mileage is within a factor of two I’m sure. Maybe Klaas will discuss a possible trend from these data.

Also, one more post and I will hit 1000. Wish I were playing baseball.

Re: backlash measurement

i hope it rolls right over to zero,ha ha hah

The backlash measurements are inconsistent probably due to different people measuring it using slightly different set-ups. However, what it shows is that it didn’t get significantly worse anywhere along the line until it got to Oklahoma City and Pocatello. The climates in those places are so dry that I’m sure some moisture was driven out of the steel, thus reducing the size of the parts and increasing clearance between them. Now that uni.5 is back in the Northwest, it’s picked up some moisture and the parts have swelled back close to their original size.

It would be interesting to see if the amount of backlash changes throughout one revolution of the wheel.

Steve Howard

Re: Riding the NEW uni.5

On Mon, 15 Jul 2002 11:48:53 -0500, harper
<harper.7udaa@timelimit.unicyclist.com> wrote:

>0.020" Seattle 0 miles
>0.030" Seattle 14 miles
>0.018" Seattle 25 miles
>0.040" Oklahoma City about 150 miles
>0.025" Jackson about 200 miles
>0.025" Minneapolis about 350 miles
>0.041" Pocatello about 350 miles
>0.034" Seattle about 400 miles
>
>The mileage is within a factor of two I’m sure. Maybe Klaas will discuss
>a possible trend from these data.

I really wasn’t planning to but… oh well. Yeah.
If one does a least-squares linear regression on those data, the
r-squared value comes out at about 0.27. Enough to say that there is
an upward trend (hey!). The “best value” for the backlash at 0 miles
is about 0.024", after 400 miles it is about 0.035".
I’ll try my hand at ascii art, to be viewed in fixed font:

0.045 …



…x…
0.040 …x…



…o
0.035 …ooo.
…ooo.x…
…ooo…
…ooo…
…ooo…
0.030 .x…ooo…
…oo…
…ooo…
…ooo…
…ooo…
0.025 …ooo…x…x…
oo…



0.020 x…

…x…


0.015 …
| | | | |
0 100 200 300 400

Klaas Bil

Re: Riding the NEW uni.5

I think its just different measuring setups like you said. It rained most
of the time here in Oklahoma while the Uni.5 was in town or we would have
put many more miles on it.

Doug

“showard” <showard.7ulmb@timelimit.unicyclist.com> wrote in message
news:showard.7ulmb@timelimit.unicyclist.com
>
> The backlash measurements are inconsistent probably due to different
> people measuring it using slightly different set-ups. However, what it
> shows is that it didn’t get significantly worse anywhere along the line
> until it got to Oklahoma City and Pocatello. The climates in those
> places are so dry that I’m sure some moisture was driven out of the
> steel, thus reducing the size of the parts and increasing clearance
> between them. Now that uni.5 is back in the Northwest, it’s picked up
> some moisture and the parts have swelled back close to their original
> size.
>
> It would be interesting to see if the amount of backlash changes
> throughout one revolution of the wheel.
>
> Steve Howard
>
>
> –
> showard - ------
> ------------------------------------------------------------------------
> showard’s Profile: http://www.unicyclist.com/profile/452
> View this thread: http://www.unicyclist.com/thread/19303
>

Re: Re: Riding the NEW uni.5

I will use my 1000th post to first thank Klaas for his statistical analysis and then to try to start a fight between Steve “OK is arid” Howard and Doug “I can’t see you through this downpour” Massey.

Re: Riding the NEW uni.5

To all:

Whoever is keeping the list of descriptors that Harper could put on his
business card, please add:

“Agent Provocateur”

Doug “the latest Coker owner” Massey

“harper” <harper.7uvsz@timelimit.unicyclist.com> wrote in message
news:harper.7uvsz@timelimit.unicyclist.com
>
> I will use my 1000th post to first thank Klaas for his statistical
> analysis and then to try to start a fight between Steve “OK is arid”
> Howard and Doug “I can’t see you through this downpour” Massey.
>
> Doug Massey wrote:
> > It rained most of the time here in Oklahoma while the Uni.5 was in
> > town or we would have put many more miles on it.
> >
> >
> > “showard” <showard.7ulmb@timelimit.unicyclist.com> wrote in message
> > news:showard.7ulmb@timelimit.unicyclist.com…[color=darkred]
> > >
> > > However, what it
> > > shows is that it didn’t get significantly worse anywhere along the
> > line
> > > until it got to Oklahoma City and Pocatello. The climates in
> > those
> > > places are so dry that I’m sure some moisture was driven out of
> > the
> > > steel, thus reducing the size of the parts and increasing
> > clearance
> > > between them.
> >
>
>
> –
> harper - Gearhead
>
> -Greg Harper
>
> It takes twice the man to ride half the bike.
> ------------------------------------------------------------------------
> harper’s Profile: http://www.unicyclist.com/profile/426
> View this thread: http://www.unicyclist.com/thread/19303
>[/color]

Re: Re: Riding the NEW uni.5

Least-squares linear regression…

Reading that made me feel tingly all over. I don’t know exactly what it means though.

John

Re: Riding the NEW uni.5

On Mon, 15 Jul 2002 22:12:56 -0500, centromachetes
<centromachetes.7v5zn@timelimit.unicyclist.com> wrote:

>Klaas Bil wrote:
>> *If one does a least-squares linear regression on those data,
>
>Reading that made me feel tingly all over. I don’t know exactly what
>it means though.

Well, I don’t know what tingly means, so…

Klaas Bil