In fact that rim has a slight notch to it between the brake track and the body of the rim. Can’t be more than 0.5mm. Is it time for a new rim? These have done 5,000 miles
If the brakes aren't pulsing it's probably good for many miles to come. The thing that kills carbon clincher rims IME is cooking the brake track. Structurally they're usually pretty over-engineered if you take heat out of the equation.
Not pulsing when braking but occasionally there’s a bit of rub when putting power through and climbing. I’ve always assumed they are very slightly out of true
In fact that rim has a slight notch to it between the brake track and the body of the rim. Can’t be more than 0.5mm. Is it time for a new rim? These have done 5,000 miles