Cannondale CAAD Optimo 4

Name: Cannondale CAAD Optimo 4
Brand: Cannondale

2026 RoadRace Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £900 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 8 34–50t / 11–30t
Gear range: 401%
Frame: Aluminum
Brakes: Rim brake

Rider height by size (cm)

Size guide

51cm 170.2–177.8
54cm 175.3–182.9
56cm 180.3–188
58cm 182.9–193
44cm Not informed
48cm Not informed

Components

15 of 23 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

SmartForm C2 Alloy, SAVE, tapered headtube, fender mounts, 130x10mm QR Not identified

Suspension

1 part

Fork

CAAD Optimo Full Carbon, 1-1/8" to 1-1/4" steerer, fender mounts, 100x9mm QR Not identified

Drivetrain

7 parts

Bottom bracket

Cartridge, square taper Not identified
Cassette
- Shimano CS-HG50
CS-HG50
Chain
- Shimano CN-HG71
CN-HG71
Crankset
- FSA Tempo 50/34t
Front derailleur
- Shimano Claris
Rear derailleur
- Shimano Claris
Shifters
- Shimano Claris

Brakes

2 parts

Brake levers
- Shimano Claris
Brakes
- ProMax
RC-452

Wheels and tires

5 parts

Front hub
- Formula RB-31
RB-31
Rear hub
- Formula
RB-32
Rims

RS 3.0, 24h front, 28h rear Not identified
Spokes

Stainless Steel, 14g Not identified
Tires
- Vittoria

Cockpit and contact points

7 parts

Grips
- Cannondale
Handlebar

6061 Alloy, Compact Not identified
Headset

CAAD Optimo, 1-1/8" to 1-1/4", 25mm top cap Not identified
Pedals
- Wellgo
Saddle
- Cannondale
Seatpost
- Cannondale
Stem

6061 Alloy, 31.8, 7° Not identified

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 56cm

Table

Reach 389mm

Stack 575mm

Wheelbase 906mm

Head angle 72.6°

Seat angle 73.3°

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 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	377	384	389	395	378	374
Stackmm	535	555	575	595	505	520
Top tube lengthmm	530	546	562	578	510	520
Seat tube lengthmm	467	495	520	550	400	440
Head tube lengthmm	121	144	165	188	86	108
Head tube angle	72.6°	72.6°	72.6°	72.6°	70.8°	71.8°
Seat tube angle	74°	73.7°	73.3°	72.8°	74.5°	74.3°
Chainstay lengthmm	415	415	415	415	415	415
Wheelbasemm	889	894	906	919	878	878
Front centermm	576	590	602	614	576	575
Bottom bracket dropmm	74	72	72	68	74	74
Bottom bracket heightmm	268	270	270	273	268	268
Standover heightmm	731	758	782	808	677	708
Fork rakemm	48	48	48	48	48	48
Trailmm	57	57	57	57	68	61

Not published by the manufacturer: Stack/reach ratio, 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: Aluminum
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 30
Lowest gear: 32.9 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 25c
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

32.9 gear inches

This value is above the central range for this class.

Cohort: Road / Race Model year: 2026
Sample: 720 bicycles with this information
Coverage: 78.6% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2026
Sample: 720 bicycles with this information
Coverage: 78.6% of the class

Shifting

Mechanical

632 of 913 bicycles with this information use electronic shifting.

Cohort: Road / Race Model year: 2026
Sample: 913 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 12.6 km/h
Highest gear: 50.5 km/h

Total gear range 401%

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: 32.9–131.8 gear inches
Class reference (p10–p90): 27.4–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Race Model year: 2026
Lowest gear: 720 bicycles with this information, 78.6% of the class
Highest gear: 720 bicycles with this information, 78.6% of the class