Rear wheel buckle.

[Sharky]

Considering that's the rear wheel, what does the wear on the front wheel look like, as it's the front wheel that takes most of the stopping effort.

 

[SuperGalactian]

About 0.7mm according to Mavic.

Thanks 👍

 

[PaulSB]

PS your tyres are looking a bit 'tired'.

Every GP5000 I've ridden has looked like this after a few months. It's fine.

 

[Binky]

Every GP5000 I've ridden has looked like this after a few months. It's fine.

Exactly. They seem to look perished etc externally but inside are fine.

 

[Binky]

Considering that's the rear wheel, what does the wear on the front wheel look like, as it's the front wheel that takes most of the stopping effort.

The rims are worn, tiny shards of aluminium get embedded in brake pads especially if wet and the rims look bad but they are sound. The walls of the rims are substantial although when I get home I'll be checking them out again. Unless a need to anyway, I always remove tyres every couple of months and inspect the wheels as a matter of course.

 

[Ming the Merciless]

tiny shards of aluminium get embedded in brake pads especially if wet and the rims look bad but they are sound.

Of course they are 🫣

 

[Binky]

Of course they are 🫣

Ah I forgot you know what the internal condition of my wheels are like.

 

[Binky]

Update for anyone interested.
Got home and removed tyre, straightened indentation and checked rim. A brief test ride and everything fine.

Rims are solid, tyres fine.

Proof of the pudding as they say will be a proper test so I intend to get out for a decent ride tomorrow but I'm very confident all will be fine.

 

[oldandslow]

I would have said that the damage looks as though you hit a pothole or other obstacle, and dented the rim.

Rim damage is difficult to smooth out sufficiently because it affects braking. You're likely to get judder. I'd be looking to replace the wheel. Check whether you are inflating the tyres to manufacturer's recommendations (usually printed on the side walls).

 

[Binky]

I would have said that the damage looks as though you hit a pothole or other obstacle, and dented the rim.

Rim damage is difficult to smooth out sufficiently because it affects braking. You're likely to get judder. I'd be looking to replace the wheel. Check whether you are inflating the tyres to manufacturer's recommendations (usually printed on the side walls).

I use Silca tyre pressure calculator, far more accurate than a manufacturers min/max range. Pressure in rear was 65psi, I'd checked before ride.
It was odd as I wasn't aware of any issue until I braked and initially it felt so strange I thoght I'd punctured.
Anyway, I'm planning on a ride today so I'll how it is. New bike on the cards soon but if need be I'll replace wheel anyway.

 

[presta]

Can anyone advise what is the minimum safe wall thickness for alloy rims, please?

The wear indicators on my Mavic T520 appeared at 1.1mm, and on an A719 at 1.25mm. (New thickness was about 1.6mm)

 

[oldandslow]

Pressure in rear was 65psi, I'd checked before ride.

Depending on the tyre, that may not be especially high. What does the tyre say? I would not run my HPs that low, but might with others.

 

[Binky]

Depending on the tyre, that may not be especially high. What does the tyre say? I would not run my HPs that low, but might with others.

Continental GP5000 have 8.0bar/116psi as max pressure, no minimum is specified. As I said, I used the Silca pressure calculator which is highly rated and I also run with tubes so a higher pressure than equivalent tubeless. Tyre pressure was definitely not the issue.

 

[SuperGalactian]

Unless I’m looking at the wrong tyre model, the Conti website advises 95-123 psi.

 

[Binky]

Unless I’m looking at the wrong tyre model, the Conti website advises 95-123 psi.

That's way too high. It says on sidewall Max 116 psi