Spoonrobot,

And I should explain myself to You? Not likely, get a grip lad.

Just to clarify for others:

It is indeed my 2nd post "here" and neither are condescending nor void of useful information, but 1st things 1st.

My 1st Fixed Gear bike ride was on a wood rimmed track bike that was raced by a friend's father pre-WWII. It was in the 1960's, I liked it a lot and have kept it up since.

I competed on the Velodrome in the '70's (those were Fixed Gear Track Bikes BTW) and have ridden Fixed on the road for decades, in fact just last week.

Road racing, cyclocross, mountain bike racing, commuting and touring don't exactly compare but I'm well rounded and know grade % very well from many perspectives.

That said, the OP's assentation of % grade and distance climbed is faintly absurd and rings my BS meter.
Perhaps he/she is a potential National Team candidate? If so good for he/she and my advise on positioning will make those massive mountain assaults much more comfortable, glad to help.

Why indeed am I here?
Why are any of you? Deep thoughts? Not really.

And what is your cycling Vita Spoonrobot ?
No, save it I'm really not interested in the least.

I would however like to know what gear ratio is used on Fixed 10-14% > 2 mile climbs w/ the Pros using 39/28-30 on similar in this year's Giro.

-Bandera