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Found this on the website for BMC (http://www.bmc-switzerland.com/int-en/timemachine/):
The patented V-Cockpit minimizes aerodynamic losses resulting from taller pad stack configurations. The system is capable of optimizing pad stack in the range of 590mm â€“ 705mm
Adding this as another resource:
So if you fit in the flat-cockpit you should order the bake in that configuration, the only problem is that they don't sell a bike like that, you would have to buy the flat-cockpit for an additional $900. I find this outrageous.
Beyond Aero | Berkeley, CA
From a purely aesthetic standpoint it looks a little "cheesy" compared to the rest of the whole. I would have thought they could have figured something else out, however suspect that this is an easier, cheaper solution vs. engineering and cost of developing a custom bento box.
Lot's of model build up and computations listed here:
This seems a little confusing when compared to the website or even the owners manual (long slider, short slider of V-Cockpit vs. Flat Cockpit) and perhaps more reason why the flat cockpit should be a standard option.
"The Timemachine 01 V-cockpit on the large size frame has a pad stack range of 656mm to 705mm. The Flat cockpit has a stack range of 595mm to 670mm."
With the V cockpit, the vertical number in pad stack represent how high you elevate the pad. This only work in increments. The reach column, is color coded to pad position, Green, is mid pad position, Red is short, and purple is long position. However, because the V cockpit angles forward. Reach increases as you increase the stack. which is why the chart looks so weird. you can't move Y without moving X at the same time. And you can't move the basebar at all.
With the flat cockpit, the two columns represent the V basebar in the angled down and angled up position. There's a natural 30mm difference in pad stack between those orientations. High hand stack is distance between base bar and BB in the flipped up configuration. and Low hand stack is the reverse.
In my opinion, the V cockpit is unnecessarily complicated to use from a fit perspective. It might be ok if you have a position that you are already comfortable with, but less so if you think you will tweak it down the road.
Some additional info. regarding the "slider" and long vs. short measurements for arm pad stack adjustment.
I love BMC (have had 2 of their tri bikes), but man... that thing looks like Picasso built a bike.
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