how many miles does it take...

General
1

How many miles does it take to get to the center of a Coker tire?

Ah, one…ah, two,… ah…** 2,000?

I am curious how many miles Coker riders have gotten out of their tires.
I would love to hear from the riders on the European ride last summer,
since most of them logged at least 1,200 miles and probably lots more
after they got home.

In my case, thru laziness (I wanted to change the tire sooner but didn’t
get around to it) I was able to get the # up to around 2,000 if not more.
Unforch, I went thru 3 odos in that time, so it’s hard to get a good
estimate that way, but since I have ridden to work beginning in March, I
have average at least 80 miles a week when I am working. In 7 months of
work, that comes to about 30 weeks (low estimate) of 80 miles a week,
equaling 2,400. On the assumption that I missed a few days (a lot of days,
even), I’ll reduce that # to 2,000.

That’s pretty good in my opinion.

Contributing to that: I rarely idle (I usually ride slowly or stop or even
jump off), so I rarely abrade the surface of the tire in that way. I
rotated the tire at about the 600 mile mark and then again later. The
first rotation was a simple changing of the crank arms by 90degrees. Later
I deflated the tire and rotated another 45degrees (I never got to the last
rotation). I finally changed tires a few wks ago when the tire was looking
a bit worn (a few threads coming thru), but I probably could have taken it
another 500mi or so.

I have been careful with the odo this time (since changing to the new
tire) so that I can give a better report about it in a few months. So far
on the new one I have logged just under 200mi.

David Stone Co-founder, Unatics of NY

** This is an allusion to a Tootsie Pop commercial of the 1970s.

2

I am just about to stick on a new one - the current one has 1700 or 1800
miles on it. The first layer of threads is showing a lot around half the
tire or so. I also don’t idle that much since I ride a bikepath for 6
miles each way of my commute.

—Nathan

“David Stone” <dstone@packer.edu> wrote in message
news:mailman.1008958942.11601.rsu@unicycling.org…
> How many miles does it take to get to the center of a Coker tire?
>
> Ah, one…ah, two,… ah…** 2,000?
>
> I am curious how many miles Coker riders have gotten out of their tires.
> I would love to hear from the riders on the European ride last summer,
> since most of them logged at least 1,200 miles and probably lots more
> after they got home.
>
> In my case, thru laziness (I wanted to change the tire sooner but didn’t
> get around to it) I was able to get the # up to around 2,000 if not
> more. Unforch, I went thru 3 odos in that time, so it’s hard to get a
> good estimate that way, but since I have ridden to work beginning in
> March, I have average at least 80 miles a week when I am working. In 7
> months of work, that comes to about 30 weeks (low estimate) of 80 miles
> a week, equaling 2,400. On the assumption that I missed a few days (a
> lot of days, even), I’ll reduce that # to 2,000.
>
> That’s pretty good in my opinion.
>
> Contributing to that: I rarely idle (I usually ride slowly or stop or
> even jump off), so I rarely abrade the surface of the tire in that way.
> I rotated the tire at about the 600 mile mark and then again later. The
> first rotation was a simple changing of the crank arms by 90degrees.
> Later I deflated the tire and rotated another 45degrees (I never got to
> the last rotation). I finally changed tires a few wks ago when the tire
> was looking a bit worn (a few threads coming thru), but I probably could
> have taken it another 500mi or so.
>
> I have been careful with the odo this time (since changing to the new
> tire) so that I can give a better report about it in a few months. So
> far on the new one I have logged just under 200mi.
>
> David Stone Co-founder, Unatics of NY
>
> ** This is an allusion to a Tootsie Pop commercial of the 1970s.

3

David Stone wrote:

> I finally changed tires a few wks ago when the tire was looking a bit
> worn (a few threads coming thru), but I probably could have taken it
> another 500mi or so.

The Coker tire is a 4 ply tire. The threads you were seeing were just the
first ply starting to peek through and you could go quite a bit farther on
it, until the 4th ply shows.

I think I got over 1300 miles on my first tire. I’m not sure though on the
exact number though.

  • Gilby
4

I think the most miles I’ve gotten out of a single tire is about 1500.
I’ve bought a total of 10 tires so far. I haven’t thrown any of them away,
so maybe I need to use them all at least until I get down to the first
threads. I have at least 8000 Coker miles now. -Mark

> How many miles does it take to get to the center of a Coker tire?
>
> Ah, one…ah, two,… ah…** 2,000?
>
> I am curious how many miles Coker riders have gotten out of their tires.
> I would love to hear from the riders on the European ride last summer,
> since most of them logged at least 1,200 miles and probably lots more
> after they got home.
>
> In my case, thru laziness (I wanted to change the tire sooner but didn’t
> get around to it) I was able to get the # up to around 2,000 if not
> more. Unforch, I went thru 3 odos in that time, so it’s hard to get a
> good estimate that way, but since I have ridden to work beginning in
> March, I have average at least 80 miles a week when I am working. In 7
> months of work, that comes to about 30 weeks (low estimate) of 80 miles
> a week, equaling 2,400. On the assumption that I missed a few days (a
> lot of days, even), I’ll reduce that # to 2,000.
>
> That’s pretty good in my opinion.
>
> Contributing to that: I rarely idle (I usually ride slowly or stop or
> even jump off), so I rarely abrade the surface of the tire in that way.
> I rotated the tire at about the 600 mile mark and then again later. The
> first rotation was a simple changing of the crank arms by 90degrees.
> Later I deflated the tire and rotated another 45degrees (I never got to
> the last rotation). I finally changed tires a few wks ago when the tire
> was looking a bit worn (a few threads coming thru), but I probably could
> have taken it another 500mi or so.
>
> I have been careful with the odo this time (since changing to the new
> tire) so that I can give a better report about it in a few months. So
> far on the new one I have logged just under 200mi.
>
> David Stone Co-founder, Unatics of NY
>
> ** This is an allusion to a Tootsie Pop commercial of the 1970s.
>
>
_________________________________________________________________________-
__
> rec.sport.unicycling mailing list -
> www.unicycling.org/mailman/listinfo/rsu

Sent via the Unicyclist Community - http://Unicyclist.com

5

cokerhead@unicyclist.com writes:
>I think the most miles I’ve gotten out of a single tire is about 1500.
>I’ve bought a total of 10 tires so far. I haven’t thrown any of them
>away, so maybe I need to use them all at least until I get down to the
>first threads. I have at least 8000 Coker miles now.
That’s amazing, Mark! Way to go! I forgot to mention that I weight about
190lbs, and weight may make a difference in how fast a person has to
change tires. I imagine the hypermetabolic Joe Merrill (who could eat a
tub of ice cream with every meal and still weigh less than 140lbs) could
get 4000 miles on a Coker tire. It would be interesting to see a curve
based on rider’s wt vs miles achieved.

David

6

On Sat, 22 Dec 2001 22:15:12 -0500, “David Stone”
<dstone@packer.edu> wrote:

>tire. It would be interesting to see a curve based on rider’s wt vs miles
>achieved.

This is typically the thing I favour doing: plotting “trivial”
relationships. I wonder if enough data could be collected. Send your
number of miles and your weight to me, or post it, and I’ll process
it some way.

Klaas Bil

“To trigger/fool/saturate/overload Echelon, the following has been picked
automagically from a database:” “Chatter, Wakil Ahmed Muttawakil, PMSP”

7

On Sat, 22 Dec 2001 22:15:12 -0500, “David Stone”
<dstone@packer.edu> wrote:

>tire. It would be interesting to see a curve based on rider’s wt vs miles
>achieved.

This is typically the thing I favour doing: plotting “trivial”
relationships. I wonder if enough data could be collected. Send your
number of miles and your weight to me, or post it, and I’ll process
it some way.

Klaas Bil

“To trigger/fool/saturate/overload Echelon, the following has been picked
automagically from a database:” “Chatter, Wakil Ahmed Muttawakil, PMSP”

8

klaasbil_remove_the_spamkiller_@xs4all.nl writes:
>>tire. It would be interesting to see a curve based on rider’s wt vs
>>miles achieved.
>
>This is typically the thing I favour doing: plotting “trivial”
>relationships. I wonder if enough data could be collected. Send your
>number of miles and your weight to me, or post it, and I’ll process it
>some way.
>
>Klaas Bil

In case it wasn’t clear in the previous post: My wt is about 190lbs and I
got about 2,000mi before changing tires (and hardly needed to).

Mark weighs about 240 and got about 1500mi per tire. But then, my
brother weighs only about 150 and got only 1500mi or so before his tire
looked awful.

David Stone Co-founder, Unatics of NY

9

Based on these three data points which is all I have to date, there is no
evidence for a “significant” relationship between weight and distance. In
case it wasn’t clear: I invite also others to let me know their distance
covered on one Coker tyre.

Klaas Bil

On Mon, 24 Dec 2001 23:48:45 -0500, “David Stone”
<dstone@packer.edu> wrote:

>klaasbil_remove_the_spamkiller_@xs4all.nl writes:
>>>tire. It would be interesting to see a curve based on rider’s wt vs
>>>miles achieved.
>>
>>This is typically the thing I favour doing: plotting “trivial”
>>relationships. I wonder if enough data could be collected. Send your
>>number of miles and your weight to me, or post it, and I’ll process it
>>some way.
>>
>>Klaas Bil
>
>In case it wasn’t clear in the previous post: My wt is about 190lbs and I
>got about 2,000mi before changing tires (and hardly needed to).
>
>Mark weighs about 240 and got about 1500mi per tire. But then, my
>brother weighs only about 150 and got only 1500mi or so before his tire
>looked awful.
>
>David Stone Co-founder, Unatics of NY
>

–
“To trigger/fool/saturate/overload Echelon, the following has been picked
automagically from a database:” “sweep, 127, TDM. SUKLO”

10

Based on these three data points which is all I have to date, there is no
evidence for a “significant” relationship between weight and distance. In
case it wasn’t clear: I invite also others to let me know their distance
covered on one Coker tyre.

Klaas Bil

On Mon, 24 Dec 2001 23:48:45 -0500, “David Stone”
<dstone@packer.edu> wrote:

>klaasbil_remove_the_spamkiller_@xs4all.nl writes:
>>>tire. It would be interesting to see a curve based on rider’s wt vs
>>>miles achieved.
>>
>>This is typically the thing I favour doing: plotting “trivial”
>>relationships. I wonder if enough data could be collected. Send your
>>number of miles and your weight to me, or post it, and I’ll process it
>>some way.
>>
>>Klaas Bil
>
>In case it wasn’t clear in the previous post: My wt is about 190lbs and I
>got about 2,000mi before changing tires (and hardly needed to).
>
>Mark weighs about 240 and got about 1500mi per tire. But then, my
>brother weighs only about 150 and got only 1500mi or so before his tire
>looked awful.
>
>David Stone Co-founder, Unatics of NY
>

–
“To trigger/fool/saturate/overload Echelon, the following has been picked
automagically from a database:” “sweep, 127, TDM. SUKLO”

11

Based on these three data points which is all I have to date, there is no
evidence for a “significant” relationship between weight and distance. In
case it wasn’t clear: I invite also others to let me know their distance
covered on one Coker tyre.

Klaas Bil

On Mon, 24 Dec 2001 23:48:45 -0500, “David Stone”
<dstone@packer.edu> wrote:

>klaasbil_remove_the_spamkiller_@xs4all.nl writes:
>>>tire. It would be interesting to see a curve based on rider’s wt vs
>>>miles achieved.
>>
>>This is typically the thing I favour doing: plotting “trivial”
>>relationships. I wonder if enough data could be collected. Send your
>>number of miles and your weight to me, or post it, and I’ll process it
>>some way.
>>
>>Klaas Bil
>
>In case it wasn’t clear in the previous post: My wt is about 190lbs and I
>got about 2,000mi before changing tires (and hardly needed to).
>
>Mark weighs about 240 and got about 1500mi per tire. But then, my
>brother weighs only about 150 and got only 1500mi or so before his tire
>looked awful.
>
>David Stone Co-founder, Unatics of NY
>

–
“To trigger/fool/saturate/overload Echelon, the following has been picked
automagically from a database:” “sweep, 127, TDM. SUKLO”

12

Based on these three data points which is all I have to date, there is no
evidence for a “significant” relationship between weight and distance. In
case it wasn’t clear: I invite also others to let me know their distance
covered on one Coker tyre.

Klaas Bil

On Mon, 24 Dec 2001 23:48:45 -0500, “David Stone”
<dstone@packer.edu> wrote:

>klaasbil_remove_the_spamkiller_@xs4all.nl writes:
>>>tire. It would be interesting to see a curve based on rider’s wt vs
>>>miles achieved.
>>
>>This is typically the thing I favour doing: plotting “trivial”
>>relationships. I wonder if enough data could be collected. Send your
>>number of miles and your weight to me, or post it, and I’ll process it
>>some way.
>>
>>Klaas Bil
>
>In case it wasn’t clear in the previous post: My wt is about 190lbs and I
>got about 2,000mi before changing tires (and hardly needed to).
>
>Mark weighs about 240 and got about 1500mi per tire. But then, my
>brother weighs only about 150 and got only 1500mi or so before his tire
>looked awful.
>
>David Stone Co-founder, Unatics of NY
>

–
“To trigger/fool/saturate/overload Echelon, the following has been picked
automagically from a database:” “sweep, 127, TDM. SUKLO”

13

I think it would be difficult to establish a relationship between riders’
weight & miles per tire. I have tried to keep good records of my miles,
but not of miles per tire. I would guess that out of my 10 tires that I
have between 300 & 1500 miles on all of them…but only a couple of them
are showing threads. Probably significant is the fact that I assume that I
run a higher air pressure than most because of my weight. But there are
many other factors involved. How often you rotate,conditions that you ride
in, surfaces, frequent stops & starts and the individual rider’s style all
affect mileage. Also, maybe it’s my imagination, but some Coker tires have
seemed “softer” than others. -Mark

> Based on these three data points which is all I have to date, there is
> no evidence for a “significant” relationship between weight and
> distance. In case it wasn’t clear: I invite also others to let me know
> their distance covered on one Coker tyre.
>
> Klaas Bil
>
> On Mon, 24 Dec 2001 23:48:45 -0500, “David Stone”
> <dstone@packer.edu> wrote:
>
>>klaasbil_remove_the_spamkiller_@xs4all.nl writes:
>>>>tire. It would be interesting to see a curve based on rider’s wt vs
>>>>miles achieved.
>>>
>>>This is typically the thing I favour doing: plotting “trivial”
>>>relationships. I wonder if enough data could be collected. Send your
>>>number of miles and your weight to me, or post it, and I’ll process it
>>>some way.
>>>
>>>Klaas Bil
>>
>>In case it wasn’t clear in the previous post: My wt is about 190lbs and
>>I got about 2,000mi before changing tires (and hardly needed to).
>>
>>Mark weighs about 240 and got about 1500mi per tire. But then, my
>>brother weighs only about 150 and got only 1500mi or so before his tire
>>looked awful.
>>
>>David Stone Co-founder, Unatics of NY
>>
>
> –
> "To trigger/fool/saturate/overload Echelon, the following has been
> picked automagically from a database:" “sweep, 127, TDM. SUKLO”
>
_________________________________________________________________________-
__
> rec.sport.unicycling mailing list -
> www.unicycling.org/mailman/listinfo/rsu

Sent via the Unicyclist Community - http://Unicyclist.com

14

Mark,

8000 miles??. Please tell us how long you have had your Coker and how you aquired all of the miles.

Incredible!

Dan

15

>>tire. It would be interesting to see a curve based on rider’s wt vs
>miles
>>achieved.
>
>This is typically the thing I favour doing: plotting “trivial”
>relationships. I wonder if enough data could be collected. Send your
>number of miles and your weight to me, or post it, and I’ll process it
>some way.

While weight of the rider may play a part in the wear of the tire, I think
other factors such as the amount air pressure in the tire would play a
much bigger part. With increased air pressure, the tire will wear faster
in a narrower area.

From my experience in training for EUT, I changed my tires about every
1500 miles. I could have gone more on a tire but as the tire starts to
wear, the chance of getting a flat starts to increase (especially when the
threads start to show). Having a flat 50 km from home was something I
tried to avoid. Oh, I do horizontal idling on the Coker at traffic lights
and at stop signs so that may increase wear on the tire.

-Andy

Andy Cotter - Andy.Cotter@OutTech.com Unicycle Video “One Wheel - No
Limit” - http://www.tcuc.org/nolimit/ Twin Cities Unicycle Club -
http://www.tcuc.org International Unicycling Federation - Director

16

> Mark,
>
> 8000 miles??. Please tell us how long you have had your Coker
I’ve had it since July 99’ and how
> you aquired all of the miles.
I ride a lot :slight_smile:

> Incredible!
No, just a glutten for punishment!
>
> Dan
>
>
>
>
> –
> dan Posted via the Unicyclist Community - http://unicyclist.com/forums
>
_________________________________________________________________________-
__
> rec.sport.unicycling mailing list -
> www.unicycling.org/mailman/listinfo/rsu

Sent via the Unicyclist Community - http://Unicyclist.com