You’re ok for now if it’s rides fine but I’d have some new tires “in stock” at your house for when they look worse or if you feel like they are squirrelly.
My front GP5000 tire is like this right now. It happens to me to all the time here in Arizona. The sun will weather check it before the tread is worn out. I’ve replaced them early if I thought they were too cracked or I got a flat and had it 1/2 off anyway.
Wide-Review-2417 on
I’d most likely ride those for a couple of hundred kms more. Maybe a thousand.
chainringtooth on
These cracks typically come up when the bike is ridden for a time with not enough air in the tire. When you have a tube inside it is just cosmetic damage as the nylon tissue under the rubber is still holding the tire together. The only disadvantage is that water can intrude into the tire and with water the tube can glue to the tire and rip open.
Hugo99001 on
If this were mine, I wouldn’t even consider getting worried.
jeffbell on
I would ride.
Take another picture in two weeks and see if it is the same.
Replace if you start to see threads.
Adventurous_Fact8418 on
It’s hard to tell without feeling the rubber, but those don’t look dry rotted to me. I would ride it.
JoPooper on
Contact the manufacturer with a pic. New tires cost less than stitches if you wipe out due to old tire traction.
gloriouswhatever on
I’d ride those for quite a while longer.
Moorbert on
this is not as bad.
Jack-Schitz on
Tire rot. New tires are cheaper than new teeth.
WalkmanCut on
Common, happens on lots of tires. I believe its from the fluctuation of the PSI in the tire. I would ride it if they are grippy. If you take the tire off and see that they are holes replace.
bikegremlin on
That looks like cracks. Sometimes tyres can last a long time with those, sometimes they burst.
If you wish to test it:
Most tyres have a stated max. pressure. If your rims can withstand it (check the specs, especially with carbon rims), you could inflate the tyres to about 20% over the max. stated pressure. If they don’t burst, they are probably OK for riding.
Just check them on a monthly basis if you decide to keep them.
Having said that, I would replace those tyres if it were my bike. Especially the front one.
Relja
Necessary-Work3045 on
Sadly yes when they get cracks like that means either it ran low for a while after it was getting kind of older but nonetheless to be safe probably ought to get some new shoes or tires I mean you know what I’m saying
Top_Objective9877 on
If you take it off the rim and any part of the tire is dusty and crumbling away if you flex it then yeah I’d replace. If it’s is otherwise elastic I wouldn’t worry about it.
16 Comments
My tires: send it
Your mechanic: replace.
Completely harmless.
You’re ok for now if it’s rides fine but I’d have some new tires “in stock” at your house for when they look worse or if you feel like they are squirrelly.
My front GP5000 tire is like this right now. It happens to me to all the time here in Arizona. The sun will weather check it before the tread is worn out. I’ve replaced them early if I thought they were too cracked or I got a flat and had it 1/2 off anyway.
I’d most likely ride those for a couple of hundred kms more. Maybe a thousand.
These cracks typically come up when the bike is ridden for a time with not enough air in the tire. When you have a tube inside it is just cosmetic damage as the nylon tissue under the rubber is still holding the tire together. The only disadvantage is that water can intrude into the tire and with water the tube can glue to the tire and rip open.
If this were mine, I wouldn’t even consider getting worried.
I would ride.
Take another picture in two weeks and see if it is the same.
Replace if you start to see threads.
It’s hard to tell without feeling the rubber, but those don’t look dry rotted to me. I would ride it.
Contact the manufacturer with a pic. New tires cost less than stitches if you wipe out due to old tire traction.
I’d ride those for quite a while longer.
this is not as bad.
Tire rot. New tires are cheaper than new teeth.
Common, happens on lots of tires. I believe its from the fluctuation of the PSI in the tire. I would ride it if they are grippy. If you take the tire off and see that they are holes replace.
That looks like cracks. Sometimes tyres can last a long time with those, sometimes they burst.
If you wish to test it:
Most tyres have a stated max. pressure. If your rims can withstand it (check the specs, especially with carbon rims), you could inflate the tyres to about 20% over the max. stated pressure. If they don’t burst, they are probably OK for riding.
Just check them on a monthly basis if you decide to keep them.
Having said that, I would replace those tyres if it were my bike. Especially the front one.
Relja
Sadly yes when they get cracks like that means either it ran low for a while after it was getting kind of older but nonetheless to be safe probably ought to get some new shoes or tires I mean you know what I’m saying
If you take it off the rim and any part of the tire is dusty and crumbling away if you flex it then yeah I’d replace. If it’s is otherwise elastic I wouldn’t worry about it.