Joined: Jul 2010
Posts: 814
Likes: 0
From: Fairfax, VA commuting to Washington DC
Bikes: 2010 Kona Dew Drop (the daily driver),'07 Specialized Roubaix (the sports car), '99 ish Kona NuNu MTB (the SUV), Schwinn High Plains (circa 1992?) (the beater)
Others have said it, but definitely consider a 'mixed mode' commute. 100 KM round trip each day sounds like an awful lot of cycling, esp. on top of work each day! Sure, some do it, but most probably can't hold up.
Other idea -- cycle 2 days a week, and drive three (reverse if you have the time and energy to manage it)