I am 205lbs and I carried both my kids ( 65lbs each ) from the school bus to our home on a 9 silver. After about 3 months the rear wheel needed to be trued. The documented weight capacity on the site is 245lbs, but it can handle your size/weight. Please understand the rear wheel would be the weakest point and may need to be replaced, and I can not cover that as a warranty, everything else would be warrantied.
Thanks,
Yan