Cannondale Synapse LAB71 SmartSense

Name: Cannondale Synapse LAB71 SmartSense
Brand: Cannondale
Price: 16499.00 USD

2025 RoadEndurance Manufacturer page

Cannondale Synapse LAB71 SmartSense, color Black Marble

Price: $16,499

Prices shown first for United States

Brand's site · 2026-11-11
Germany: €15,799 Brand's site · 2026-11-11
United Kingdom: £12,500 Brand's site · 2026-11-11
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 13 44t / 10–46t
Gear range: 460%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

48cm 157.5–167.6
51cm 165.1–175.3
54cm 170.2–180.3
56cm 175.3–185.4
58cm 182.9–193
44cm Not informed
61cm Not informed

Components

18 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

LAB71 Synapse Hi-MOD Carbon, Proportional Response construction, integrated cable routing, downtube Stashport, 12x142 thru-axle, UDH, BSA 68mm threaded BB, flat mount disc, integrated seat binder, SmartSense Gen 2.0 equipped, fender mounts Not identified

Suspension

1 part

Fork

Lab71 Synapse Hi-MOD Carbon, integrated crown race, 12x100mm thru-axle, flat mount disc, internal routing, 1-1/8" to 1-1/5" Delta steerer, 55mm offset, fender mounts Not identified

Drivetrain

7 parts

Brakes

2 parts

Brake levers
- SRAM Red
Brakes

RED AXS hydraulic disc Brake, 160/160mm Paceline X centerlock rotors Not identified

Wheels and tires

5 parts

Cockpit and contact points

7 parts

Grips
- Fizik Tempo Bondcush Soft 3MM
Handlebar
- Cannondale
Headset

Integrated, 1-1/8" - 1-1/2" Not identified
Pedals

Not included Not identified
Saddle
- Fizik Vento Argo 00
Seatpost
- Cannondale
Stem
- Cannondale

Sizes and geometry

7 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 56cm

Table

Reach 387mm

Stack 590mm

Wheelbase 1044mm

Head angle 71.3°

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 7 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	371	376	381	387	393	366	402
Stackmm	530	550	570	590	610	510	640
Top tube lengthmm	533	544	555	567	580	522	598
Seat tube lengthmm	407	443	480	520	550	407	590
Head tube lengthmm	108	127	150	171	196	91	227
Head tube angle	70.9°	71.3°	71.3°	71.3°	71.3°	69.8°	71.3°
Seat tube angle	73°	73°	73°	73°	73°	73°	73°
Chainstay lengthmm	425	425	425	430	430	425	430
Wheelbasemm	1005	1013	1026	1044	1058	1003	1077
Front centermm	592	600	612	624	638	589	657
Bottom bracket dropmm	75	75	73	73	70	75	70
Bottom bracket heightmm	278	278	280	280	283	278	283
Standover heightmm	722	752	785	815	843	714	878
Fork rakemm	55	55	55	55	55	55	55
Trailmm	64	61	61	61	61	71	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: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 44
Largest chainring: 44
Rear sprockets: 13
Smallest sprocket: 10
Largest sprocket: 46
Lowest gear: 27.7 in
Highest gear: 127.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BSA
Power meter: SRAM RED AXS Power Meter, 44T: 165mm (44cm), 170mm (48-51cm), 172.5 (54-56cm), 175mm (58-61)
Additional specification: Model display: Red AXS
Additional specification: Model id: red-axs
Tire clearance: Maximum tire width: 48c
Tire width: 32c
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

27.7 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2025
Sample: 546 bicycles with this information
Coverage: 81.8% of the class

Highest gear

127.6 gear inches

This value is below the central range for this class.

Cohort: Road / Endurance Model year: 2025
Sample: 546 bicycles with this information
Coverage: 81.8% of the class

Shifting

Electronic

356 of 663 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2025
Sample: 663 bicycles with this information
Coverage: 99.4% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.6 km/h
Highest gear: 48.9 km/h

Total gear range 460%

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: 27.7–127.6 gear inches
Class reference (p10–p90): 26.6–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2025
Lowest gear: 546 bicycles with this information, 81.8% of the class
Highest gear: 546 bicycles with this information, 81.8% 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 2025 builds

Differences across 2025 builds
Specification	This bicycle Cannondale Synapse LAB71 SmartSense	Cannondale Synapse 1	Cannondale Synapse 2	Cannondale Synapse 3	Cannondale Synapse Carbon 1	Cannondale Synapse Carbon 1 RLE
Frame
Frame material	Carbon	Aluminum	Aluminum	Aluminum	Carbon	Carbon
Drivetrain
Front chainrings	1	2	2	2	2	2
Smallest chainring	44	34	32	34	34	34
Largest chainring	44	50	46	50	50	50
Rear sprockets	13	12	10	9	12	12
Smallest sprocket	10	11	11	11	11	11
Largest sprocket	46	34	39	34	34	34
Lowest gear	27.7 in	29.0 in	23.8 in	29.0 in	29.0 in	29.0 in
Highest gear	127.6 in	131.8 in	121.3 in	131.8 in	131.8 in	131.8 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Hydraulic disc	Hydraulic disc
Cockpit
Derailleur hanger	UDH	Not informed	Not informed	Not informed	UDH	Not informed
Shifting	Electronic	Mechanical	Mechanical	Mechanical	Electronic	Electronic
Other specifications
Power meter	SRAM RED AXS Power Meter, 44T: 165mm (44cm), 170mm (48-51cm), 172.5 (54-56cm), 175mm (58-61)Additional specification: Model display: Red AXSAdditional specification: Model id: red-axs	Not informed	Not informed	Not informed	Shimano Ultegra R8100, 50/34, 4iiii PRECISION 3+ PRO Power Meter: 165mm (44cm), 170mm (48-51cm), 172.5 (54-56cm), 175mm (58-61)Additional specification: Model display: Precision ProAdditional specification: Model id: precision-pro	Not informed
Tire clearance	Maximum tire width: 48c	Maximum tire width: 32c	Maximum tire width: 32c	Maximum tire width: 32c	Maximum tire width: 48c	Maximum tire width: 35c
Tire width	32c	30c	30c	30c	32c	30c
Wheel material	Carbon	Aluminum	Aluminum	Aluminum	Carbon	Carbon