I've been using GP 3000 and 4000 for over 12 years. The problem is age (I'm 71) and the new rims. My Litespeed has Mavic Open Pros and I don't have problems with them. My problem is with the new wheels. They have Velocity A23 rims. I'm having a tough time and the shop mechanic is too. Thats why I'm asking for suggestions for easy to mount tires and easy to change when I have bad luck on the road or trail.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.