Look 765 Optimum
Endurance road · 5 sizes
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- Bike
- Look 765 Optimum · Endurance road · 5 sizes
- Geometry
- lookcycle.com, fetched 20 Oct 2026, re-checked, no differences
- Cockpit
- Generic stem and bar, assumed
- Solved with
- cover 15 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
- Sheet
- 22 October 2026 · 686 bikes, 74 makes, 3,984 sizes in the catalogue
Geometry, every size, from the maker's table
The tinted row is the size drawn beside it. Press a size to draw it.The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The M drawn to scale from the table, with no build on it. Stack and reach run from the bottom bracket to the top of the head tube; every size is solved from those two. One square is 100 mm.
The maker's cockpit
No stock cockpit I can name, so every size is solved on a generic stem and bar unless you choose one on the sheet.Generic stem and barAssumedNo bar is listed for this frame.
Frame facts
read from the maker's words, not a table: lookcycle.com- Tyre clearance
- not recorded yet
- Bottom bracket
- not recorded yet
- Axles and brakes
- not recorded yet
- UDH
- not recorded yet
- Seatpost
- 27.2 mm round
- Frame weight
- not recorded yet
In the maker's words
Kept whole, as I read it off lookcycle.com.Two-piece on the 765 Optimum 105 Di2: Handlebar "LOOK LS3 Alloy", Stem "LOOK LS3 Alloy" (per-size lengths and widths not printed).
Cockpit and seatpost, in the maker's words · 30 words
Two-piece on the 765 Optimum 105 Di2: Handlebar "LOOK LS3 Alloy", Stem "LOOK LS3 Alloy" (per-size lengths and widths not printed). Seatpost "LOOK LS1 Carbon Superlight 27.2 mm 350 mm".
OFFICIAL SOURCE: https://www.lookcycle.com/fr-en/products/bikes/road-bikes/endurance/765-optimum-105-di2-r50d. Source: html table (official Look product page "765 Optimum 105 Di2 / R50D", Geometry table; fetched 2026-10-20
How I read the maker's table
Look prints decimals with both commas and points (486,2 and 525.2) in one row; converted by script, numbers unchanged. No stack datum is stated in words (stack_datum null). Table heading "765 Optimum". The head tube row is lettered "K2 - Head tube" (117/142/170/195,3/223,4). Head angle 70.8 and seat angle 74 on every size, trail 67 and offset 50 on every size. Rows kept here only: L - Fork 385.5 on every size. Stock tyre "HUTCHINSON Fusion 5 Tubeless Ready 700x30" (tyre_width_mm 30). Model year not printed.
Source: html table (official Look product page "765 Optimum 105 Di2 / R50D", Geometry table; fetched 2026-10-20, HTTP 200)