Victor added 1. He added an Orbea road bike to his quiver of bikes. He has been riding mountain and wanted to try some fast long distance riding. (Brad, (holding the sign) was passing the roadie torch to Victor. Brad was in the shop to get an off road terrain touring bike.) Thus, the day proves the N+1 formula to be correct whether you ride road or mountain. N+1= the number of bikes you need. N=the number you currently have.