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PostPosted: Wed Sep 11, 2013 8:07 pm 
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AGW wrote:
^ I don't think it's an aero gain based on the cranks themselves, but more to do with more open hip angle it affords some riders at the top of the pedal stroke. I don't know whether the benefit of this might be cancelled out by having to raise the bars concomitant with the seatpost, though.


You will have to raise the seat, but opening the hip angle allows you to go lower (back to the same angle with longer cranks), and possibly keep the same handlebar height.

You might increase cda by having your ass higher though. But it's worth playing around with crank sizes. And I would definitely not go longer than what you have on the road bike.


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PostPosted: Wed Sep 11, 2013 11:37 pm 
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hna wrote:
You might increase cda by having your ass higher though.


No... your ass will not be higher than your back. And note that your saddle is only higher because your feet are higher. There is no increase in frontal area from this.

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PostPosted: Thu Sep 12, 2013 1:01 am 
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Ta williamsf1.

And I'd take 5 free watts, no matter what my power out put.

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PostPosted: Thu Sep 12, 2013 1:58 am 
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Exactly. Even of we only make 20 watts if difference that closes the gap significantly. Lots of small gains is what we are after. Full spec list coming soon. Sorry for the delay guys

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PostPosted: Thu Sep 12, 2013 9:50 am 
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Hey T, how's things? Is that Dan Waluszewski's bike? And are you comparing it to Joe Coopers? If so, they were both built up by Capital Cycles, who build my bikes btw

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PostPosted: Thu Sep 12, 2013 10:40 am 
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Hey Stu, sure is Dans bike. Capital has a good rep in old Welly. Build list coming tomorrow. Prepare your keyboards guys.

Myself and theremery have devised a plan to heat shrink the bottom of the pedals to gain some watts. Kind of like the look keo blades that have the carbon base.

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PostPosted: Thu Sep 12, 2013 11:22 am 
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Here's a pic of Dan setting a new course record in a local race around here on the bike in question about a week or so ago Image

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PostPosted: Thu Sep 12, 2013 2:02 pm 
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He may consider rotating the helmet further back on his head. It looks rather silly standing around at the start but helps keep the tail down against you back. As shown, if he looks down, instant sail. I prefer feeling the tip of the helmet touchcing my back as a guide.

Great project, hoping your man wins it!


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PostPosted: Thu Sep 12, 2013 2:03 pm 
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PostPosted: Thu Sep 12, 2013 2:13 pm 
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In the original pic the bar-end shifter is turned down into the wind. Could you replace it with Campag-style shifters that stay in the same place as you shift?


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PostPosted: Thu Sep 12, 2013 5:01 pm 
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play around with the praymantis/Floyd Landis position. works for some (although not all)


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PostPosted: Thu Sep 12, 2013 5:12 pm 
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From that photo he appears to have a lot of room for getting lower in the front, and working on the shrug and turtle. I'd guess his CdA is pretty high and he makes up for it with power.

And I'll 2nd that the helmet should be rotated back. Holding a position where the top of the helmet and the top of the back are at the same level is usually best.

Also, narrow elbows spacing is usually best, and if that doesn't work for him, mounting a bottle between the arms was found to usually be faster than no bottle by Cervelo.

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PostPosted: Thu Sep 12, 2013 7:43 pm 
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Friction Facts for lubes and chains. www.friction-facts.com

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PostPosted: Thu Sep 12, 2013 7:45 pm 
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WMW wrote:
From that photo he appears to have a lot of room for getting lower in the front, and working on the shrug and turtle. I'd guess his CdA is pretty high and he makes up for it with power.

And I'll 2nd that the helmet should be rotated back. Holding a position where the top of the helmet and the top of the back are at the same level is usually best.

Also, narrow elbows spacing is usually best, and if that doesn't work for him, mounting a bottle between the arms was found to usually be faster than no bottle by Cervelo.


+1

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PostPosted: Thu Sep 12, 2013 9:51 pm 
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The rider is pretty aiming his position is good. But may be limited to going lower by the bike. Ill suggest a fitment by another fitter, see what he says.

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