Cannondale Synapse Hi-MOD GRX Di2

Name: Cannondale Synapse Hi-MOD GRX Di2
Brand: Cannondale

2023 RoadEndurance Manufacturer page

Cannondale Synapse Hi-MOD GRX Di2, color Black Pearl

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 34–50t / 11–34t
Gear range: 455%
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
61cm 190.5–203.2

Components

14 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

Hi-MOD Carbon, Di2 ready, SAVE, BB30a, flat mount, 12x142mm thru axle, internal cable routing, removable fender bridge Not identified

Suspension

1 part

Fork
- Ballistec

Drivetrain

7 parts

Bottom bracket
- Cannondale
Cassette
- Shimano CS-HG800-11 11 speeds 11–34t
CS-HG800-11
Chain
- Shimano CN-HG701-11
CN-HG701-11
Crankset

HollowGram, BB30a, OPI SpideRing, 50/34 Not identified
Front derailleur
- Shimano GRX
Rear derailleur
- Shimano GRX RD-RX815 11 speeds
RD-RX815
Shifters
- Shimano GRX ST-RX815
ST-RX815

Brakes

2 parts

Brake levers
- Shimano
Brakes
- Shimano

Wheels and tires

5 parts

Front hub

HollowGram KNØT, sealed bearing 12x100 centerlock Not identified
Rear hub
- DT Swiss
Rims

HollowGram 45 SL KNØT, Carbon, 20h front, 24h rear, 45mm deep, 21mm IW, tubeless ready Not identified
Spokes
- DT Swiss AEROLITE
Tires
- WTB Exposure

Cockpit and contact points

7 parts

Grips
- Cannondale
Handlebar

HollowGram SAVE SystemBar, Carbon, 8 deg. pitch adjust Not identified
Headset

Synapse Carbon, integrated, 1-1/8" - 1-1/8" (48cm), 1-1/8" - 1-1/4" (51-54cm), 1-1/8" - 1-3/8" (56-61cm) Not identified
Pedals

Not included Not identified
Saddle
- Fizik Aliante
Seatpost

HollowGram SAVE Carbon, 25.4 x 350mm (44-56), 400mm (58-61) Not identified
Stem

HollowGram SAVE, Alloy, -6° Not identified

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 54cm

Table

Reach 382mm

Stack 570mm

Wheelbase 1008mm

Head angle 71.7°

Seat angle 73.9°

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	371	377	382	386	393	402
Stackmm	530	550	570	590	610	640
Top tube lengthmm	517	531	547	561	579	604
Seat tube lengthmm	407	443	480	520	550	590
Head tube lengthmm	122	137	161	173	197	229
Head tube angle	70.8°	71.7°	71.7°	73°	73°	73°
Seat tube angle	74.6°	74.3°	73.9°	73.5°	73°	72.5°
Chainstay lengthmm	410	410	410	410	410	410
Wheelbasemm	996	994	1008	995	1009	1028
Front centermm	598	596	609	596	609	627
Bottom bracket dropmm	75	75	73	73	70	70
Bottom bracket heightmm	270	270	272	272	275	275
Standover heightmm	712	742	773	804	833	868
Fork rakemm	60	55	55	45	45	45
Trailmm	56	56	56	58	58	58
Stack/reach ratio	1.43	1.46	1.49	1.53	1.55	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: 34
Lowest gear: 29.0 in
Highest gear: 131.8 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: BB30
Tire clearance: Maximum tire width: 32c
Tire width: 30c
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

29.0 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2023
Sample: 635 bicycles with this information
Coverage: 70.4% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2023
Sample: 635 bicycles with this information
Coverage: 70.4% of the class

Shifting

Electronic

449 of 901 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2023
Sample: 901 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.1 km/h
Highest gear: 50.5 km/h

Total gear range 455%

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: 29.0–131.8 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: 2023
Lowest gear: 635 bicycles with this information, 70.4% of the class
Highest gear: 635 bicycles with this information, 70.4% 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 2023 builds
Specification	This bicycle Cannondale Synapse Hi-MOD GRX Di2	Cannondale Synapse 105	Cannondale Synapse 1	Cannondale Synapse 2	Cannondale Synapse 3	Cannondale Synapse Carbon 105
Frame
Frame material	Carbon	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Drivetrain
Rear sprockets	11	11	11	10	9	11
Brakes
Brake type	Hydraulic disc	Mechanical disc	Hydraulic disc	Hydraulic disc	Mechanical disc	Hydraulic disc
Cockpit
Shifting	Electronic	Mechanical	Mechanical	Mechanical	Mechanical	Mechanical
Other specifications
Bottom bracket standard	BB30	BB30	BSA	BSA	BSA	BB30
Tire clearance	Maximum tire width: 32c	Not informed	Maximum tire width: 32c	Maximum tire width: 32c	Maximum tire width: 32c	Maximum tire width: 32c
Wheel material	Carbon	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum