Look 765 Optimum+

2021 RoadEndurance Manufacturer page

Last known price: $3,000

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 34–50t / 11–32t
Gear range: 428%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 156–166
SM 163–174
MD 171–182
LG 179–189
XL 185–195

Components

13 of 15 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

carbon Not identified

Drivetrain

6 parts

Bottom bracket
- Token
Cassette
- Shimano 105 CS-R7000 11 speeds
CS-R7000
Chain
- Shimano CN-HG601
CN-HG601
Crankset
- Shimano FC-RS510 11 speeds
FC-RS510
Rear derailleur
- Shimano 105 RD-R7000 11 speeds
RD-R7000
Shifters
- Shimano 105

Brakes

2 parts

Brakes

Hydraulic Disc Not identified
Disc rotors
- Shimano

Wheels and tires

2 parts

Cockpit and contact points

4 parts

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 375mm

Stack 578mm

Wheelbase 1024mm

Head angle 70.3°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	355	365	375	385	395
Stackmm	530	554	578	602	626
Top tube lengthmm	507	524	552	569	586.5
Seat tube lengthmm	470	490	510	535	560
Head tube lengthmm	111.5	137	162.5	188	213.5
Head tube angle	70.3°	70.3°	70.3°	70.3°	70.3°
Seat tube angle	74°	74°	73°	73°	73°
Chainstay lengthmm	420	420	420	420	420
Wheelbasemm	987	1005	1024	1043	1061
Front centermm	577	595.5	614	632.5	651
Bottom bracket dropmm	70	70	70	70	70
Bottom bracket heightmm	266	266	266	266	266
Standover heightmm	740	764	788	812	836
Fork rakemm	50	50	50	50	50
Trailmm	70.5	70.5	70.5	70.5	70.5
Stack/reach ratio	1.49	1.52	1.54	1.56	1.59

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 30.8 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: PF30
Tire width: 30c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

30.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2021
Sample: 465 bicycles with this information
Coverage: 90.4% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2021
Sample: 465 bicycles with this information
Coverage: 90.4% of the class

Shifting

Mechanical

130 of 513 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2021
Sample: 513 bicycles with this information
Coverage: 99.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 50.5 km/h

Total gear range 428%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 30.8–131.8 gear inches
Class reference (p10–p90): 29.0–137.1 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2021
Lowest gear: 465 bicycles with this information, 90.4% of the class
Highest gear: 465 bicycles with this information, 90.4% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2021 builds
Specification	This bicycle Look 765 Optimum+	Look 765 Gravel	Look 765 Gravel RS	Look 765 Gravel RS Carbon Champagne	Look 765 Optimum+ Full - Look Wheels
Frame
Bicycle weight	Not informed	9.7 kg	8.98 kg	Not informed	8.5 kg
Drivetrain
Smallest chainring	34	30	31	30	34
Largest chainring	50	46	48	43	50
Rear sprockets	11	11	11	12	11
Smallest sprocket	11	11	11	10	11
Largest sprocket	32	34	34	36	32
Lowest gear	30.8 in	25.6 in	26.4 in	24.2 in	30.8 in
Highest gear	131.8 in	121.3 in	126.6 in	124.7 in	131.8 in
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Electronic	Mechanical
Other specifications
Bottom bracket standard	PF30	386 EVO	386 EVO	386 EVO	386 EVO
Tire width	30c	38c	40c	40c	30c
Wheel material	Aluminum	Aluminum	Aluminum	Aluminum	Carbon