Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

Would you ride these cracked sidewalls?

Notices
General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Would you ride these cracked sidewalls?

Old 01-29-17, 08:22 AM
  #1  
stevel610 
Senior Member
Thread Starter
 
Join Date: Aug 2006
Location: Valley Forge: Birthplace of Freedom
Posts: 1,217

Bikes: Novara Safari, CAAD9, WABI Classic, WABI Thunder

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 337 Post(s)
Liked 396 Times in 207 Posts
Would you ride these cracked sidewalls?

I'm a Clyde at @230. These Zaffirro tires (27x1 1/8 or 630-28) are about 4 years old, but as you can see ridden little. I know this type of cracking is usually an indication of under inflation, but I always had the front at 90psi and the rear at least 95 psi.

I've had 3 sets of these and like the ride, and love that I've never had a flat on any of them. That said, they all crack like this after a while. I know there are a variety of opinions out there on riding cracked tires, so thought I'd ask for input.



__________________
Be watchful, stand firm in the faith, act like men, be strong. Let all that you do be done in love.

Last edited by stevel610; 01-29-17 at 08:36 AM.
stevel610 is offline  
Old 01-29-17, 08:25 AM
  #2  
ckindt
Senior Member
 
Join Date: Jan 2016
Location: near Omaha, NE
Posts: 259

Bikes: Trek Domane 2020 SLR7, 2016 4.3 Disc, 2017 Raleigh Stuntman

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 127 Post(s)
Liked 35 Times in 20 Posts
no
ckindt is offline  
Old 01-29-17, 08:34 AM
  #3  
TimothyH
- Soli Deo Gloria -
 
Join Date: Aug 2015
Location: Northwest Georgia
Posts: 14,782

Bikes: 2018 Rodriguez Custom Fixed Gear, 2017 Niner RLT 9 RDO, 2015 Bianchi Pista, 2002 Fuji Robaix

Mentioned: 235 Post(s)
Tagged: 0 Thread(s)
Quoted: 6839 Post(s)
Liked 725 Times in 459 Posts
No.

People are free to ride on whatever they want but they are garbage.
TimothyH is offline  
Old 01-29-17, 08:36 AM
  #4  
10 Wheels
Galveston County Texas
 
10 Wheels's Avatar
 
Join Date: Nov 2007
Location: In The Wind
Posts: 32,846

Bikes: 02 GTO, 2011 Magnum

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 1269 Post(s)
Liked 1,028 Times in 512 Posts
Ride Um till you get a Flat.
__________________
Fred "The Real Fred"

10 Wheels is online now  
Old 01-29-17, 08:50 AM
  #5  
billnuke1 
Senior Member
 
billnuke1's Avatar
 
Join Date: Dec 2010
Location: St Cloud Fl.
Posts: 1,921

Bikes: Only my riders left...

Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 336 Post(s)
Liked 702 Times in 362 Posts
Walkin' home...

I would ride that...I just wouldn't ride it further than I was willin' to walk home.
billnuke1 is offline  
Old 01-29-17, 09:08 AM
  #6  
Homebrew01
Super Moderator
 
Homebrew01's Avatar
 
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,761

Bikes: Old Steelies I made, Old Cannondales

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 1139 Post(s)
Liked 738 Times in 495 Posts
Yes, Looks like the underlying cords are OK, and that's what really matters. I would ride them.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.

FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
Homebrew01 is offline  
Old 01-29-17, 09:23 AM
  #7  
BlazingPedals
Senior Member
 
BlazingPedals's Avatar
 
Join Date: Dec 2004
Location: Middle of da Mitten
Posts: 12,303

Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Catrike Speed

Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 1444 Post(s)
Liked 652 Times in 406 Posts
The problem with the cracks is, the carcass will flex more there, and eventually the cord will fail suddenly, resulting in a blowout. (been there, done that.) I'd pitch them.
BlazingPedals is offline  
Old 01-29-17, 09:36 AM
  #8  
GamblerGORD53
Senior Member
 
Join Date: Apr 2010
Location: Elevation 666m Edmonton Canada
Posts: 2,107

Bikes: 2013 Custom SA5w / Rohloff Tourster

Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 1024 Post(s)
Liked 205 Times in 163 Posts
Replace with SCHWALBE tires. ZERO chance of cracks. My latest SM Plus tires have over 7,000 miles and nowhere near finished, including 4,180 on tour at 120 lbs weight. FAR better than any other brand. I even saw fit to rotate front to back at 5,500 this time.

Last edited by GamblerGORD53; 01-29-17 at 09:39 AM.
GamblerGORD53 is offline  
Old 01-29-17, 09:58 AM
  #9  
TenSpeedV2
Senior Member
 
TenSpeedV2's Avatar
 
Join Date: Dec 2014
Posts: 4,347

Bikes: Felt TK2, Felt Z5

Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 943 Post(s)
Likes: 0
Liked 19 Times in 19 Posts
Absolutely not.
TenSpeedV2 is offline  
Old 01-29-17, 10:17 AM
  #10  
Spoonrobot 
Senior Member
 
Spoonrobot's Avatar
 
Join Date: Jul 2006
Posts: 2,993
Mentioned: 63 Post(s)
Tagged: 0 Thread(s)
Quoted: 1174 Post(s)
Liked 115 Times in 81 Posts
Cracks like that are not from under-inflation. They're from age/poor quality rubber. Lower end Vittoria tires are notorious for this. I ran several sets of Zaffiro/Zaffiro Pro at between 10-15% sag and all showed the same issues within about 6 months. This failure can also happen on a faster timeline if the rubber is stored near electrical motors or certain chemicals.

This logic comes from car tires that will show damage like that due to under-inflation but this is due to the additional heat created at the speeds and cornering forces automobiles operate at. Bicycle tires do not operate to those levels and do not crack in the same way.

Damage from under-inflation in bicycle tires is almost always pre-empted by obvious cord showing on the interior or exterior sidewalls. You can see an example here: fourth picture from the top of the post: https://janheine.wordpress.com/2016/...tire-pressure/

ETA: Another clue that this is not related to inflation pressure is the center mold line is still present on the tire. Any tire, even at the front, ridden an appreciable distance for sidewall damage to occur from flex would not still have this manufacturing mark visible.

Last edited by Spoonrobot; 01-29-17 at 10:42 AM.
Spoonrobot is online now  
Old 01-29-17, 10:20 AM
  #11  
stoplight
Senior Member
 
Join Date: May 2012
Posts: 110
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Likes: 0
Liked 1 Time in 1 Post
risk divided by reward = nope
stoplight is offline  
Old 01-29-17, 10:39 AM
  #12  
Wileyrat
Senior Member
 
Join Date: Mar 2013
Location: Tucson Az
Posts: 1,613

Bikes: 2015 Ridley Fenix, 1983 Team Fuji, 2019 Marin Nail Trail 6, and a few dust collectors

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 322 Post(s)
Liked 168 Times in 110 Posts
nope
Wileyrat is offline  
Old 01-29-17, 10:46 AM
  #13  
Fastfingaz
Senior Member
 
Join Date: Jan 2013
Posts: 1,380
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 174 Post(s)
Liked 23 Times in 11 Posts
Ordinarily I'd say ride them till they bust but considering your generous proportions that probably won't be long,, but if you're adventurous and have a new set of tires along with someone who will rescue you no matter where they go flat ride them see how long they last,,
Fastfingaz is offline  
Old 01-29-17, 10:49 AM
  #14  
1Coopgt
Senior Member
 
1Coopgt's Avatar
 
Join Date: Jan 2017
Location: Rochester ,NY
Posts: 103

Bikes: Mongoose Reform Sport

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
The cracking isn't caused by low air pressure. That is caused by age and Ozone. Ozone attacks rubber over time. Happens to Car and Motorcycle tires all the time too. You normally don't see it on cars and motorcycles because you change the tires more often.
1Coopgt is offline  
Old 01-29-17, 11:34 AM
  #15  
AlexCyclistRoch
The Infractionator
 
AlexCyclistRoch's Avatar
 
Join Date: Mar 2016
Location: Rochester, NY
Posts: 2,202

Bikes: Classic road bikes: 1986 Cannondale, 1978 Trek

Mentioned: 9 Post(s)
Tagged: 1 Thread(s)
Quoted: 875 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
I'd be just as worried about those rusty spokes failing. Obviously a low-end wheelset.
AlexCyclistRoch is offline  
Old 01-29-17, 12:11 PM
  #16  
SquidPuppet
Calamari Marionette Ph.D
 
SquidPuppet's Avatar
 
Join Date: Dec 2013
Location: Coeur d' Alene
Posts: 7,862

Bikes: 3 Chinese Gas Pipe Nerdcycles and 2 Chicago Electroforged Boat Anchors

Mentioned: 75 Post(s)
Tagged: 0 Thread(s)
Quoted: 2357 Post(s)
Liked 29 Times in 25 Posts
Nope. And I would change brands too. Even if those were inexpensive they were a total waste of money.
SquidPuppet is offline  
Old 01-29-17, 12:17 PM
  #17  
TimothyH
- Soli Deo Gloria -
 
Join Date: Aug 2015
Location: Northwest Georgia
Posts: 14,782

Bikes: 2018 Rodriguez Custom Fixed Gear, 2017 Niner RLT 9 RDO, 2015 Bianchi Pista, 2002 Fuji Robaix

Mentioned: 235 Post(s)
Tagged: 0 Thread(s)
Quoted: 6839 Post(s)
Liked 725 Times in 459 Posts
This brings up the subject of age. OP says the tires are 4 years old.

I have to replace a spare tire that sits on the back of a Honda CRV because UV has baked the sidewall to the point where inflating it reveals cracks.

Ozone and UV damage to rubber over time is real.
TimothyH is offline  
Old 01-29-17, 12:21 PM
  #18  
10 Wheels
Galveston County Texas
 
10 Wheels's Avatar
 
Join Date: Nov 2007
Location: In The Wind
Posts: 32,846

Bikes: 02 GTO, 2011 Magnum

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 1269 Post(s)
Liked 1,028 Times in 512 Posts
I rode some like that while waiting on new tires. They were 23 years old and Never went Flat.
__________________
Fred "The Real Fred"

10 Wheels is online now  
Old 01-29-17, 12:53 PM
  #19  
longbeachgary
Senior Member
 
longbeachgary's Avatar
 
Join Date: Sep 2008
Location: Beautiful Long Beach California
Posts: 3,603

Bikes: Eddy Merckx San Remo 76, Eddy Merckx San Remo 76 - Black Silver and Red, Eddy Merckx Sallanches 64 (2); Eddy Merckx MXL;

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 143 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Why would you? New tires are fairly cheap.
longbeachgary is offline  
Old 01-29-17, 12:57 PM
  #20  
indyfabz
Senior Member
 
indyfabz's Avatar
 
Join Date: Jan 2010
Posts: 36,005
Mentioned: 204 Post(s)
Tagged: 1 Thread(s)
Quoted: 16546 Post(s)
Liked 11,476 Times in 5,544 Posts
Originally Posted by AlexCyclistRoch View Post
I'd be just as worried about those rusty spokes failing.
I see someone else saw the forest despite the trees.

I would get new tires and have the wheel rebuilt (assuming the rim is in o.k. shape, which might be a faulty assumption).
indyfabz is offline  
Old 01-29-17, 02:41 PM
  #21  
Hokiedad4
Senior Member
 
Join Date: May 2015
Location: South Jersey
Posts: 314

Bikes: Specialized Sirrus, Giant Contend

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 105 Post(s)
Liked 29 Times in 13 Posts
Oxygen and UV, the most destructive forces on earth.

I wouldn't inflate them to 90-95 psi for a 28-mm tire. I recommend 80 psi. You'll actually experience a smoother ride.
Hokiedad4 is offline  
Old 01-29-17, 03:29 PM
  #22  
Fastfingaz
Senior Member
 
Join Date: Jan 2013
Posts: 1,380
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 174 Post(s)
Liked 23 Times in 11 Posts
Originally Posted by indyfabz View Post
I see someone else saw the forest despite the trees.

I would get new tires and have the wheel rebuilt (assuming the rim is in o.k. shape, which might be a faulty assumption).
A little surface rust ain't gonna hurt nothing huh ?
Fastfingaz is offline  
Old 01-29-17, 05:03 PM
  #23  
jefnvk
Senior Member
 
jefnvk's Avatar
 
Join Date: Apr 2015
Location: Metro Detroit/AA
Posts: 8,214

Bikes: 2016 Novara Mazama

Mentioned: 63 Post(s)
Tagged: 0 Thread(s)
Quoted: 3639 Post(s)
Liked 81 Times in 51 Posts
Nope, and I'm nearly as cheap as they come. I'd take a new $10 Kenda or CST tire over that any day.
jefnvk is offline  
Old 01-29-17, 05:37 PM
  #24  
Rollfast
What happened?
 
Rollfast's Avatar
 
Join Date: Jun 2007
Location: Around here somewhere
Posts: 8,050

Bikes: 3 Rollfasts, 3 Schwinns, a Shelby and a Higgins Flightliner in a pear tree!

Mentioned: 57 Post(s)
Tagged: 1 Thread(s)
Quoted: 1835 Post(s)
Liked 291 Times in 254 Posts
Originally Posted by stevel610 View Post
I'm a Clyde at @230. These Zaffirro tires (27x1 1/8 or 630-28) are about 4 years old, but as you can see ridden little. I know this type of cracking is usually an indication of under inflation, but I always had the front at 90psi and the rear at least 95 psi.

I've had 3 sets of these and like the ride, and love that I've never had a flat on any of them. That said, they all crack like this after a while. I know there are a variety of opinions out there on riding cracked tires, so thought I'd ask for input.




I see a bulge beginning to develop in that first picture as well (that ridge should not be bent and wiggly). Whatever problems you have with cracking or sun damage or whatever do not matter at this point, the tire is not properly installed and is on the way to failure.


Change it now. You can live with sidewall cracking for a little while.
__________________
I don't know nothing, and I memorized it in school and got this here paper I'm proud of to show it.
Rollfast is offline  
Old 01-29-17, 05:50 PM
  #25  
shafter
Senior Member
 
shafter's Avatar
 
Join Date: Jan 2016
Posts: 646
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 189 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Ride them till they flat, then toss them.
shafter is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.