definitly worth the push up to the top, descent is awesome, though not entirely difficult.  It does get cold quick at the top, so if get cold quickly in general take warmer clothes, I was ok in shorts and a waterproof eve when waiting at the top for ten minutes.

Most of the climb is rideable if your fit and like climbing, only the last 1/4 is too steep to climb, plus they are sections all the way up which arent rideable. 

yes, the bike are shit on PGR4, and overall PGR3 was a better ganme.  Forza motorsport is the game you want to be playing