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Hello. I'm about to buy new frameset Look 585 ultra 2008 or 2009. The only available size is L for both of them.
I don't have a chance to try them before the purchase. I rode my friends 595 ultra L once an it seemed to be fine. My measures are as follows:

height: 183 cm; 72 inches
weight: 87 kg; 193lbs
cycling inseam: 860 mm; 33.85 inches
saddle height: 790 mm; 31.10 inches

Now I have Orbea Aqua size 57 with 110 mm stem, 90 mm drop, and it's maybe just a bit too big for me.
There are two things that worry me:
1. Will I get the same drop with my new frame?
2. saddle height: 790 mm
seat tube length: 531 mm
distance between top of the saddle and saddle rails 50 mm
seat tube: 350 mm

790-531-50=209 mm part of the seatpost that's outside of the frame
350-209=141mm part of the seatpost that's inside the frame

Is it enough that 141 mm of the seatpost is inserted inside the frame? I weight 87 kg.

So, I'm asking for your opinion. Should I give up on these frames, or should I buy it?
Thank you!
 

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14cm of seatpost inserted is usually fine. That doesn't mean the frame will fit you. What is the effective top tube length?
 

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http://www.bikebling.com/ProductDetails.asp?ProductCode=Look08-585-Ultra-Frame

The Look 585 frame dimensions are shown on this page. It looks like the L frame size has a 56 cm toptube. The XL frame has a 57.5 cm toptube. At 6 feet tall, and assuming your legs and torso and arms are all average length, I think the L frame with a 56 cm toptube is a bit too small. A bit small. You need the XL size with a 57.5 cm toptube.



"Now I have Orbea Aqua size 57 with 110 mm stem, 90 mm drop, and it's maybe just a bit too big for me."

This statement seems weird to me. I have a 57cm Orbea Opal with 12cm stem and setback seatpost and Aliante saddle all the way back and it is not too big for me. I am 5'11" tall. The 57cm Orbea should fit you perfectly. It has a 57cm toptube.

But maybe if the above statement is right, the 57cm frame is too big for you, then maybe the L Look with a shorter 56cm toptube would be OK for you. Go with a 12cm stem on the Look.
 

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L is fine for me...

I'm pretty much same dimensions as you (OK maybe just a tad lighter ;) )

I ride a 2009 585 size L with 12 cm stem - fits me fine.

Great ride - go for it. If you are buying just the frameset try to get the Look seatpost too - 2009 frameset came with that as part of complete package.
 
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