I had a Kinlin XR-200 20 hole rim built up with Sapim CX-Ray spokes and a bikehubstore lightweight hub and it's performed very nicely for the whole spring/summer, but in the last month I've noticed what I believe to be some significant flexing.
Both the rear and the front also went significantly out of true and after having both re-aligned, I still hear brake rubbing when I get up and sprint hard out of the saddle.
I'm not the lightest guy but I'm also not a clyde. I weigh 155lb and I hadn't had any issues like this for the entire time I had them until now.
Any ideas? Thanks for any help.