The bolt wasn't overtightened, no torque wrench, but I certainly didn't crank it down too hard. I also try not to bunny hop too often with such a light road bike.

This was a steel bolt on their stock seatpost with the saddle close to the center of the rails. The bike has also never been crashed. The only thing I can think of is that I was 240 when I got the bike, but am now down to 210. But this is not acceptable to me as I asked if this was a problem when I purchased the bike and was told it was not. This is a 60cm frame that should be spec'd with parts for bigger riders. Yes, this is budget bike, but not a low-end dept. store bike. I have a feeling I will be going round and round with Supergo for some time to get this resolved.

I guess I should just be happy it didn't turn out much worse and maybe spend the extra in the future to get a more top end product. My only fear is that the more you spend the lighter the parts get, not the more durable.