Cervélo S5 Ultegra Di2

Name: Cervélo S5 Ultegra Di2
Brand: Cervélo

2026 RoadAero Manufacturer page

Last known price: $10,100

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 36–52t / 11–34t
Gear range: 446%
Weight: 7.76 kg 17.1 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

48cm
51cm
54cm
56cm
58cm
61cm

The manufacturer did not publish rider heights for these sizes.

Components

16 of 18 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 fiber Not identified

Suspension

1 part

Fork
- Cervélo

Drivetrain

8 parts

Bottom bracket
- FSA
Cassette
- Shimano Ultegra CS-R8100-12 11–34t
CS-R8100-12
Chain
- Shimano Deore XT CN-M8100
CN-M8100
Crankset
- Shimano Ultegra FC-R8100 52/36t
FC-R8100
Front derailleur
- Shimano Ultegra FD-R8150 2 speeds
FD-R8150
Power meter

4iiii Precision Pro, GEN3+ Dual Sided Not identified
Rear derailleur
- Shimano Ultegra RD-R8150 12 speeds
RD-R8150
Shifters
- Shimano Ultegra ST-R8170
ST-R8170

Brakes

1 part

Brakes
- Shimano Ultegra BR-R8170
BR-R8170

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Sizes and geometry

6 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 54cm

Table

Reach 384mm

Stack 542mm

Wheelbase 975mm

Head angle 73.0°

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 Reach Stack

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	367	376	384	392	401	409
Stackmm	496	519	542	565	588	608
Top tube lengthmm	520	535	550	565	581	595
Seat tube lengthmm	480	510	540	560	580	610
Head tube lengthmm	64	82	104	125	152	173
Head tube angle	71°	72°	73°	73.5°	73.5°	73.5°
Seat tube angle	73°	73°	73°	73°	73°	73°
Chainstay lengthmm	405	405	405	405	405	405
Wheelbasemm	973	974	975	982	999	1013
Front centermm	579	580	581	588	604	617
Bottom bracket dropmm	74.5	74.5	72	72	69.5	69.5
Bottom bracket heightmm	261	261	264	264	266	266
Standover heightmm	712	734	758	781	804	822
Fork rakemm	58.5	52.5	46.5	43.5	43.5	43.5
Trailmm	55.6	55.6	55.6	55.6	55.6	55.6
Stack/reach ratio	1.35	1.38	1.41	1.44	1.47	1.49

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
Bicycle weight: 7.76 kg

17.1 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 36
Largest chainring: 52
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 30.7 in
Highest gear: 137.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BBright
Power meter: 4iiii Precision Pro, GEN3+ Dual Sided
Additional specification: Model display: Precision Pro
Additional specification: Model id: precision-pro
Wheel material: Carbon
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

30.7 gear inches

This value is within the central range for this class.

Cohort: Road / Aero Model year: 2026
Sample: 283 bicycles with this information
Coverage: 79.9% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Aero Model year: 2026
Sample: 283 bicycles with this information
Coverage: 79.9% of the class

Shifting

Electronic

270 of 352 bicycles with this information use electronic shifting.

Cohort: Road / Aero Model year: 2026
Sample: 352 bicycles with this information
Coverage: 99.4% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 52.5 km/h

Total gear range 446%

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: 30.7–137.1 gear inches
Class reference (p10–p90): 28.2–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Aero Model year: 2026
Lowest gear: 283 bicycles with this information, 79.9% of the class
Highest gear: 283 bicycles with this information, 79.9% 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 2026 builds

Differences across 2026 builds
Specification	This bicycle Cervélo S5 Ultegra Di2	Cervélo S5 Dura-Ace Di2	Cervélo S5 Force AXS	Cervélo S5 Force eTap AXS	Cervélo S5 1 Red AXS	Cervélo S5 Red AXS
Frame
Bicycle weight	7.76 kg	7.42 kg	7.68 kg	Not informed	6.74 kg	7.3 kg
Drivetrain
Front chainrings	2	2	2	2	1	2
Smallest chainring	36	40	37	37	50	37
Largest chainring	52	54	50	50	50	50
Smallest sprocket	11	11	10	10	10	10
Largest sprocket	34	34	33	33	36	33
Lowest gear	30.7 in	34.1 in	32.5 in	32.5 in	40.3 in	32.5 in
Highest gear	137.1 in	142.4 in	145.0 in	145.0 in	145.0 in	145.0 in
Other specifications
Power meter	4iiii Precision Pro, GEN3+ Dual SidedAdditional specification: Model display: Precision ProAdditional specification: Model id: precision-pro	4iiii Precision Pro, GEN3+ Dual SidedAdditional specification: Model display: Precision ProAdditional specification: Model id: precision-pro	SRAM Force AXS E1, 50/37T, DUB, with power meter, Size 48 - 160mm Size 51 - 165mm Size 54 - 170mm Size 56 - 170mm Size 58 - 172.5mm Size 61 - 172.5mmAdditional specification: Model display: Force AXSAdditional specification: Model id: force-axs	SRAM Force AXS, 50/37T, DUB, with power meterAdditional specification: Model display: Force AXSAdditional specification: Model id: force-axs	SRAM Red 1 AXS E1, 50T Aero, DUB, with power meter, Size 48 - 160mm Size 51 - 165mm Size 54 - 170mm Size 56 - 170mm Size 58 - 172.5mm Size 61 - 172.5mmAdditional specification: Model display: Red AXSAdditional specification: Model id: red-axs	SRAM Red AXS E1, 50/37T, DUB, with power meter, Size 48 - 160mm Size 51 - 165mm Size 54 - 170mm Size 56 - 170mm Size 58 - 172.5mm Size 61 - 172.5mmAdditional specification: Model display: Red AXSAdditional specification: Model id: red-axs
Tire width	Not informed	Not informed	Not informed	28c	Not informed	Not informed