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Stronger rubber cement?



 
 
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  #241  
Old January 19th 17, 11:39 PM posted to rec.bicycles.tech
Doug Landau
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Posts: 1,424
Default Stronger rubber cement?


On road bikes it usually happens when hitting a rock "just so". Like
when the rock gets under the tire off center and flies off to the side
with gusto.


Haha and makes a loud CRACK as it hits the passenger door or window of the car to your left :-)

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  #242  
Old January 19th 17, 11:57 PM posted to rec.bicycles.tech
Joerg[_2_]
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Posts: 6,016
Default Stronger rubber cement?

On 2017-01-19 14:39, Doug Landau wrote:

On road bikes it usually happens when hitting a rock "just so". Like
when the rock gets under the tire off center and flies off to the side
with gusto.


Haha and makes a loud CRACK as it hits the passenger door or window of the car to your left :-)


No kidding, that has happend. Also, drivers give me extra wide margin
when I just came off a dirt path in bad weather and all sorts of gunk
flies off my rear wheel.

--
Regards, Joerg

http://www.analogconsultants.com/
  #243  
Old January 20th 17, 12:05 AM posted to rec.bicycles.tech
Doug Landau
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Posts: 1,424
Default Stronger rubber cement?

On Thursday, January 19, 2017 at 2:57:38 PM UTC-8, Joerg wrote:
On 2017-01-19 14:39, Doug Landau wrote:

On road bikes it usually happens when hitting a rock "just so". Like
when the rock gets under the tire off center and flies off to the side
with gusto.


Haha and makes a loud CRACK as it hits the passenger door or window of the car to your left :-)


No kidding, that has happend. Also, drivers give me extra wide margin
when I just came off a dirt path in bad weather and all sorts of gunk
flies off my rear wheel.

--
Regards, Joerg

http://www.analogconsultants.com/


And you are pretty sure that that piece of pea gravel damaged my sidewall?
  #244  
Old January 20th 17, 12:18 AM posted to rec.bicycles.tech
Joerg[_2_]
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Posts: 6,016
Default Stronger rubber cement?

On 2017-01-19 15:05, Doug Landau wrote:
On Thursday, January 19, 2017 at 2:57:38 PM UTC-8, Joerg wrote:
On 2017-01-19 14:39, Doug Landau wrote:

On road bikes it usually happens when hitting a rock "just so". Like
when the rock gets under the tire off center and flies off to the side
with gusto.

Haha and makes a loud CRACK as it hits the passenger door or window of the car to your left :-)


No kidding, that has happend. Also, drivers give me extra wide margin
when I just came off a dirt path in bad weather and all sorts of gunk
flies off my rear wheel.

--
Regards, Joerg

http://www.analogconsultants.com/


And you are pretty sure that that piece of pea gravel damaged my sidewall?


No, sometimes they damage the side wall of my tire. Depends on the shape
of the rock and how it flips while rolling over it.

Just ordered a CST Conquistare 700c*25 for a test. We shall see how that
holds up.

--
Regards, Joerg

http://www.analogconsultants.com/
  #245  
Old January 20th 17, 12:50 AM posted to rec.bicycles.tech
DATAKOLL MARINE RESEARCH
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Posts: 2,011
Default Stronger rubber cement?

On Thursday, January 19, 2017 at 9:18:00 AM UTC-5, AMuzi wrote:
On 1/18/2017 10:35 PM, DATAKOLL MARINE RESEARCH wrote:
Frank...every watch the antiquo video ?


It's called bas-relief:
http://ancientrome.ru/art/artwork/sc...nini/ca012.jpg


--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


carrying rolls of figs on a stick?
  #246  
Old January 20th 17, 04:00 AM posted to rec.bicycles.tech
John B.[_3_]
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Posts: 5,697
Default Stronger rubber cement?

On Thu, 19 Jan 2017 14:57:42 -0800, Joerg
wrote:

On 2017-01-19 14:39, Doug Landau wrote:

On road bikes it usually happens when hitting a rock "just so". Like
when the rock gets under the tire off center and flies off to the side
with gusto.


Haha and makes a loud CRACK as it hits the passenger door or window of the car to your left :-)


No kidding, that has happend. Also, drivers give me extra wide margin
when I just came off a dirt path in bad weather and all sorts of gunk
flies off my rear wheel.


I am beginning to wonder.

You have repeatedly stated that your usual speed is 20 MPH. Now, a 26
x 3.0 tire will be spinning at about 250 RPM at that speed..... But
this speeding tire accumulates "all kind of gunk"?

I ask as my road bike, who's wheels are spinning at only about 157 RPM
don't seem to accumulate any junk at all.
--
Cheers,

John B.

  #247  
Old January 20th 17, 04:24 AM posted to rec.bicycles.tech
Doug Landau
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Posts: 1,424
Default Stronger rubber cement?

On Thursday, January 19, 2017 at 7:00:50 PM UTC-8, John B. wrote:
On Thu, 19 Jan 2017 14:57:42 -0800, Joerg
wrote:

On 2017-01-19 14:39, Doug Landau wrote:

On road bikes it usually happens when hitting a rock "just so". Like
when the rock gets under the tire off center and flies off to the side
with gusto.

Haha and makes a loud CRACK as it hits the passenger door or window of the car to your left :-)


No kidding, that has happend. Also, drivers give me extra wide margin
when I just came off a dirt path in bad weather and all sorts of gunk
flies off my rear wheel.


I am beginning to wonder.

You have repeatedly stated that your usual speed is 20 MPH. Now, a 26
x 3.0 tire will be spinning at about 250 RPM at that speed..... But
this speeding tire accumulates "all kind of gunk"?

I ask as my road bike, who's wheels are spinning at only about 157 RPM
don't seem to accumulate any junk at all.


Actually John the mud at Hangtown MX track in Joerg's neck of the woods has a reputation for being particularly sticky, especially, shortly after the rain stops when "the bike picks up 50 Lbs"

  #248  
Old January 20th 17, 08:10 AM posted to rec.bicycles.tech
John B.[_3_]
external usenet poster
 
Posts: 5,697
Default Stronger rubber cement?

On Thu, 19 Jan 2017 19:24:21 -0800 (PST), Doug Landau
wrote:

On Thursday, January 19, 2017 at 7:00:50 PM UTC-8, John B. wrote:
On Thu, 19 Jan 2017 14:57:42 -0800, Joerg
wrote:

On 2017-01-19 14:39, Doug Landau wrote:

On road bikes it usually happens when hitting a rock "just so". Like
when the rock gets under the tire off center and flies off to the side
with gusto.

Haha and makes a loud CRACK as it hits the passenger door or window of the car to your left :-)


No kidding, that has happend. Also, drivers give me extra wide margin
when I just came off a dirt path in bad weather and all sorts of gunk
flies off my rear wheel.


I am beginning to wonder.

You have repeatedly stated that your usual speed is 20 MPH. Now, a 26
x 3.0 tire will be spinning at about 250 RPM at that speed..... But
this speeding tire accumulates "all kind of gunk"?

I ask as my road bike, who's wheels are spinning at only about 157 RPM
don't seem to accumulate any junk at all.


Actually John the mud at Hangtown MX track in Joerg's neck of the woods has a reputation for being particularly sticky, especially, shortly after the rain stops when "the bike picks up 50 Lbs"


The bicycle weighs maybe 20 or 30 lbs and picks up 50 lbs of mud? I
don't believe it.
--
Cheers,

John B.

  #249  
Old January 20th 17, 01:01 PM posted to rec.bicycles.tech
DATAKOLL MARINE RESEARCH
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Posts: 2,011
Default Stronger rubber cement?

Soil chemistry n geology relevant to cycling...exposed parts, proximity. Check your soil type prob with U State Ag ...

I doahn have wet cycling experience on Cal ( !#@ ) yet getting the film with diesel fuel mist off muh winshield is a trip to the car wash with .... water contaminated with Cal soil.

https://en.m.wikipedia.org/wiki/Alkali_soil

Morter or moretar ... on the west side where ground is raised sea bottom.

I did drive up out of Coal banks at the Missouri n across the farmlands above after rain. The place is a huge mud dune.

$20 at the car wash removing MUD .... the truck wudda understeer ed off the interstate with that mud load.
  #250  
Old January 20th 17, 04:43 PM posted to rec.bicycles.tech
Joerg[_2_]
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Posts: 6,016
Default Stronger rubber cement?

On 2017-01-19 19:00, John B. wrote:
On Thu, 19 Jan 2017 14:57:42 -0800, Joerg
wrote:

On 2017-01-19 14:39, Doug Landau wrote:

On road bikes it usually happens when hitting a rock "just so". Like
when the rock gets under the tire off center and flies off to the side
with gusto.

Haha and makes a loud CRACK as it hits the passenger door or window of the car to your left :-)


No kidding, that has happend. Also, drivers give me extra wide margin
when I just came off a dirt path in bad weather and all sorts of gunk
flies off my rear wheel.


I am beginning to wonder.

You have repeatedly stated that your usual speed is 20 MPH. Now, a 26
x 3.0 tire will be spinning at about 250 RPM at that speed..... But
this speeding tire accumulates "all kind of gunk"?


As explained many times 20mph is the speed on flat sections of trail or
slightly higher when downsloping a little. My average trail speed is
more around 10-12mph depending on turf unless I want to push it. Meaning
there are murky or gnarly stretches in the low single digit mph. There
are people on this NG who do not understand the difference between top
speed and average speed.

On such trails I often slow down to enjoy the scenery, animals, and so
on. Something that the "bicycles belong on road" people will likely
never understand.

Then I ride on 29" wheels. A usual scenario is that I come back on
singletrack from Placerville and the last section before entering a
regular road is this:

http://www.analogconsultants.com/ng/bike/Chapparal2.jpg

Imagine that after three days of rain. Also, on rainy days my average
speed on the "real" trail can drop substantially because the rear wheel
becomes stuck several times. Big clump of mud caked up near the BB,
wheel will hardly turn even in granny gear, have to stop, look around
for a sturdy branch piece of manzanita, poke the mud out of there,
continue the ride. Until it gets stuck again a few miles later.
Sometimes it's so bad that I strap that piece of manzanita onto the rack.


I ask as my road bike, who's wheels are spinning at only about 157 RPM
don't seem to accumulate any junk at all.



Well, do your road bike tires have knobbies? BTW, my road bike does
fling dirt off the wheels after a muddy stretch of "bush road" and I
have caked up its BB area with mud. Usually purposely rolling through
some water puddles washes the mud off the tires, something that does not
work for the MTB tires.

--
Regards, Joerg

http://www.analogconsultants.com/
 




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