Opinion needed
07-04-23 | 01:28 PM
#27
Mad bike riding scientist
Joined: Nov 2004
Posts: 29,183
Likes: 6,261
From: Denver, CO
Bikes: Some silver ones, a red one, a black and orange one, and a few titanium ones
Seems like the practice of putting baby powder in the tire and filling new tubes in stages would help prevent this. You know, pump to 20 psi, release pressure down to 5, up to 30, down to 10, etc. This allows the tube to stretch and settle into the correct shape slowly without sticking and tearing.
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Stuart Black
Dreamin' of Bemidji Down the Mississippi (in part)
Plan Epsilon Around Lake Michigan in the era of Covid
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Stuart Black
Dreamin' of Bemidji Down the Mississippi (in part)
Plan Epsilon Around Lake Michigan in the era of Covid
Gold Fever Three days of dirt in Colorado
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Last edited by cyccommute; 07-04-23 at 05:00 PM.
07-04-23 | 02:22 PM
#28
Senior Member
Joined: Mar 2012
Posts: 1,450
Likes: 982
I didn't use tire levers to mount the tires. Didn't have to. Only barely used one plastic lever to open it up.
This is a bike-shop quality bike. Not a Walmart bike.
That shed got mucho hot for certain. Full sun, 100 degree day, no wind, little ventilation.
I just put new tubes on there and pumped them up to 40 psi. I bet they work now.
This is a bike-shop quality bike. Not a Walmart bike.
That shed got mucho hot for certain. Full sun, 100 degree day, no wind, little ventilation.
I just put new tubes on there and pumped them up to 40 psi. I bet they work now.
07-04-23 | 03:31 PM
#29
Thread Starter
Banned.
Joined: Aug 2006
Posts: 2,939
Likes: 428
From: Illinois
He passed away a year or so ago.
The more I ponder this tire thing the more I recall tires blowing out when left in the sun. The bike is just sitting there and Kablooey.....time to get out the tools.
I remember taking a break on a group ride and my brother gets up and moves his bike out of the sun just for this reason. We had seen other tires pop in the sun. I can remember him saying, "I don't want it happening to me".
The more I ponder this tire thing the more I recall tires blowing out when left in the sun. The bike is just sitting there and Kablooey.....time to get out the tools.
I remember taking a break on a group ride and my brother gets up and moves his bike out of the sun just for this reason. We had seen other tires pop in the sun. I can remember him saying, "I don't want it happening to me".
07-06-23 | 11:51 AM
#31
Sock Puppet
Joined: Oct 2022
Posts: 1,701
Likes: 865
From: Planet Earth
Bikes: 2014 Cannondale Synapse Carbon, 2017 Jamis Renegade Exploit and too many others to mention.
Let's say you put brand-new tubes on a beach cruiser. Then you fill both tires up to max pressure, 65 psi, and then you put the bike in a shed.
Next day it hits 100 degrees and that shed is out in the sun.
Next day both tires have flats, and both holes are right above the rim strips, but both rim strips are intact. One hole is a 1/4" slit, the other is a 1/2" slit. Would you say the tires blew from excess pressure, caused by the heat?
Asking for a friend.
Next day it hits 100 degrees and that shed is out in the sun.
Next day both tires have flats, and both holes are right above the rim strips, but both rim strips are intact. One hole is a 1/4" slit, the other is a 1/2" slit. Would you say the tires blew from excess pressure, caused by the heat?
Asking for a friend.
Not to mention that 65 PSI is waaaaaaayyyyy too high for beach cruiser tires unless you are over 300 lbs. You gain nothing with that kind of pressure.
07-07-23 | 12:00 PM
#32
Senior Member
Joined: Jun 2020
Posts: 1,380
Likes: 537
From: Maryland
Bikes: 1982 Bianchi Sport SX, Rayleigh Tamland 1, Rans V-Rex recumbent, Fuji MTB, 80's Cannondale MTB with BBSHD ebike motor
Not really. Pump a tube up outside of a tire and the tube expands towards the side typically away from the valve stem faster. It is probably an artifact of the toroid of the tube and the way it is molded. This observation is what lead me to conclude that the tube is expanding towards the tire side first. Your scheme of pressurizing and releasing pressure doesn’t really address the problem.
