Just pick a nice gear ratio and you'll be fine ;-) In effect many pro climbers seem to ride it fixed or virtually fixed anyway; you certainly don't see them flicking through the gears...
Planning to do that too... including the descent, fixed and brakeless. One week in the Alps and one week in the Pyrenees respectively if everything pans out. Do you know when you'll be going?
I did Alpe d'Huez amongst other, tougher climbs when I was 15-16 years old on a multi-speed bike and never needed a ratio lower than 39/23 back then. Any idea what the pros are using these days?
/csb, is this the right thread?
I'll hopefully be doing a little too, only a small bit mind and the 'easier' sections.
I'll hopefully be doing a little too, only a small bit mind and the 'easier' sections.