How much front tire cupping can you live with?

[holligl]

I am not experiencing any ride performance or noise issues on this E-07 Dakar (18k+ mi) and I try to avoid rain, but the cupping looks pretty significant to me. I have a new set on hand, but I prefer riding to spooning tires on (unless it is raining.) How much can you live with?

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[Sierra1]

I know it's apples and oranges, but on the Bridgestone BT 23/30, the only time I felt the cupping was if I let go of the bars below 30mph. But that was on front tires; I've never seen back tires cup. I'm guessing due to them being 50/50 tires?

 

[VRODE]

My Shinko 705 started to cup badly. The ride wasn’t bad and there were no wobbles, but the noise was loud and getting louder. At 9k it had served me well and was replaced.
At 18k I’d replace the E-07. You got more than your money’s worth.

 

[Cycledude]

With 18,000 miles that front tire looks pretty decent, if your riding plans allow I would keep using it for a while.

 

[holligl]

I know it's apples and oranges, but on the Bridgestone BT 23/30, the only time I felt the cupping was if I let go of the bars below 30mph. But that was on front tires; I've never seen back tires cup. I'm guessing due to them being 50/50 tires?

This is the front. The rear just squares off.

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