One more vote for 36 holes is enough. I started my TransAm (mostly road) with a total bike load of something over 330 pounds. (I only weighed myself, not the load, at the start.) Total load at the end was about 290 pounds. Wheels were stock, though the mechanic did go over them before I left the store. No broken spokes, and only touched the wheels twice, lightly both times, to tweak the true.