A Cycling & bikes forum. CycleBanter.com

Go Back   Home » CycleBanter.com forum » rec.bicycles » Techniques
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Gaping hole in tire



 
 
Thread Tools Display Modes
  #21  
Old September 24th 08, 01:24 PM posted to rec.bicycles.tech
Ben C
external usenet poster
 
Posts: 3,084
Default Gaping hole in tire

On 2008-09-24, _ wrote:
On Tue, 23 Sep 2008 21:12:23 -0500, Tom Sherman wrote:

? wrote:
[...]
This is the thing you would be looking for
http://www.parktool.com/products/det...17&item=TB%2D2 or
perhaps here https://www.sluggergifts.com/zgifts - maybe splurge and
get both.[...]


An aluminium alloy bat can be swung faster, so it will transfer more
energy to the target.


Are you sure?

Despite the v^2 term, the source of the enrgy remains the same (the
swinger's muscles) and (aside from the negligable quantum effects), if the
swinger puts all that he can into the object,


If the bat is too light he may not be able to put as much energy in--
you can only move your arms so fast.

which then stops and puts all that it has into the recipient, the
means of transport from swinger to recipient should not matter.


The bat only stops when it hits the ball if it's the right mass
(assuming it's you always strike with the same part of the bat and hold it
the same way).

If the bat is too massive, it will keep going after it hits the ball. If
it's not massive enough, it will bounce back off the ball.

So you want one that's just right, subject to being heavy enough that
you can get enough energy into it in the first place.
Ads
  #22  
Old September 24th 08, 07:13 PM posted to rec.bicycles.tech
Andrew Price
external usenet poster
 
Posts: 828
Default Gaping hole in tire

On Tue, 23 Sep 2008 23:14:18 +0200, Alexandre Kampouris
wrote:

Yes, it was a Marathon Plus indeed, but the difference in weight is not
that huge, I just tested two brand new tires hanging in equilibrium
from on a kitchen scale placed at the corner of a table:

37-622 Marathon Plus: 967 g
37-622 Marathon : 679 g

As stated earlier, I'm actually quite satisfied with the standard grade
Marathons, and I don't see any reason to change, as they never gave me
any particular trouble which could lead me to seek an alternative.


Likewise. I'd *much* prefer to fix one or two punctures a year than
to drag all that extra weight around.

My latest bike had tires like yours as a default offering, IIRC. I
preferred sticking with the devil I knew.

What's the point of using a wider tire? The 40s are limited to 5 bars
instead of 6, isn't it?


They were on the bike (a Fahrradmanufaktur T700) when I bought it, but
like you, I prefer narrower tyres. On my hack bike ("die
Bahnhofsgurke") I have 37mm Schwalbes (the ordinary ones) and on my
road bike 23mm Vittorias.

Opinions do vary though - some say that the wider 40mm tyres give a
more cushioned ride, for hardly any increase in rolling resistance. I
only bought another one so as to keep the same size on front and rear
wheels, although in practice, it probably doesn't make the slightest
bit of difference.

I had to put one on a rear wheel in August of last year, to
replace a tyre which had become irreparably damaged. I was in
Arnstadt that day, and no-one there had "normal" Marathons, only the
"Plus". I took it off when I got home, though.


Did you ride all the way to/from home through the Harz Mountains?


I have been a couple of times to Wernigerode and Halberstadt, but on
that trip, I circumvented the Harz by going:

Braunschweig== Magdeburg== Bernburg== Köthen== Halle==
Weißenfels== Jena == Weimar== Arnstadt== Gotha== Eisenach and
back. It gets pretty hilly around Jena, though - at one point I noted
440m above sea level.

Last week I made my first multiple-day bike trip in Lower Saxony. The
landscape was not at all difficult, albeit a bit windy. I had only ever
made day trips before, at home or away, but had never actually used the
bike as THE means of transportation between places. It was an intensely
satisfying experience, and I really regret not having tried it earlier.


Lower Saxony's a good starting point, as apart from the Elm and the
Deister, it's just so flat. Can get windy, though, as you noted.

Tomorrow I'm off to InnoTrans.


I haven't made any plans this year - I'll be in Berlin on Friday for
other business, and may have the chance to drop in on Innotrans for an
hour or so, but I'm not counting on it. Any chance you could post a
brief report on fmtr? I'm sure there must be many others who'd be
interested but don't have the possibility to get there.
  #23  
Old September 25th 08, 08:21 PM posted to rec.bicycles.tech
Alexandre Kampouris
external usenet poster
 
Posts: 21
Default Gaping hole in tire

Andrew Price wrote:

I have been a couple of times to Wernigerode and Halberstadt, but on
that trip, I circumvented the Harz by going:

Braunschweig== Magdeburg== Bernburg== Köthen== Halle==
Weißenfels== Jena == Weimar== Arnstadt== Gotha== Eisenach and
back. It gets pretty hilly around Jena, though - at one point I noted
440m above sea level.


The Saale valley looks very beautiful to me.

Do you have camping equipment, or do you sleep indoors?

I haven't made any plans this year - I'll be in Berlin on Friday for
other business, and may have the chance to drop in on Innotrans for an
hour or so, but I'm not counting on it. Any chance you could post a
brief report on fmtr? I'm sure there must be many others who'd be
interested but don't have the possibility to get there.


I now tend to hang more around icf, because of the persistent static
level originating from Random Q. Crosspost and fiends, but I still lurk.

I'll nevertheless try to write a summary of my outsider's observations
in the coming days. The Big Canadian Conglomerate had the best locations
outdoors, and very high visibility, to the point that I didn't
immediately realize that the AGV on display wasn't part of their
exhibit. But then I noticed that it was the record setting manufacturer
which was attracting the crowds, with dozens of people waiting more than
one half hour just to have a peek inside its latest offering. (I gave up
after 15-20 minutes, and the queue had barely moved).

I returned today for the second and last time, and I have visitors until
Sunday, so be patient.

Alexandre
  #24  
Old September 27th 08, 09:50 PM posted to rec.bicycles.tech
Garry Lee
external usenet poster
 
Posts: 69
Default Gaping hole in tire

Glue canvas on the inside with puncture solution. As long as it's not
on the contact part of the tyre, this will nearly always last the life
of the tyre. If the cut is big, you can sew the cut first with dental
floss or carpet thread.

I've often done this.
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Would someone stuff something in this gaping hole. RonSonic Racing 17 July 25th 07 09:16 AM
28 hole rim / 36 hole hub stuff Nate Knutson Techniques 13 January 12th 06 07:13 PM
Lacing 24" 32 or 36 hole Rim to 48 hole Hub pdc Unicycling 8 April 5th 05 09:08 PM
wtb: American Classic Rear road hub 36 hole---will trade for same in 32 hole version jeremyb Marketplace 0 November 8th 04 04:18 PM
New tire with hole GABIKE General 3 July 24th 03 11:46 PM


All times are GMT +1. The time now is 11:25 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 CycleBanter.com.
The comments are property of their posters.