Specialized Diverge 4 Expert Shimano GRX Di2

Name: Specialized Diverge 4 Expert Shimano GRX Di2
Brand: Specialized

2026 RoadGravel Manufacturer page

Specialized Diverge 4 Expert Shimano GRX Di2, color Nebula Metallic / Sandstone Metallic

Last known price: $6,499

Prices shown first for United States
Fork travel: 20 mm
Wheels: 700c
Drivetrain: 1 × 12 40t / 10–51t
Gear range: 510%
Weight: 8.9 kg 19.6 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

49cm 155–164
52cm 161–171
54cm 169–178
56cm 175–181
58cm 179–189
61cm 187–196

Components

10 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

Specialized Diverge FACT 9r carbon, SWAT™ Door integration, Future Shock suspension, threaded BB, internal routing, 12x142mm thru-axle, flat-mount disc, UDH dropout Not identified

Suspension

1 part

Fork

Future Shock 3.2 w/ Smooth Boot, FACT Carbon 12x100mm, thru-axle, flat-mount disc Not identified

Drivetrain

6 parts

Bottom bracket
- Shimano
Cassette
- Shimano Deore XT CS-M8100-12 12 speeds 10–51t
CS-M8100-12CS-M8100
Chain
- Shimano Deore XT CN-M8100
CN-M8100
Crankset
- Shimano GRX FC-RX820 12 speeds 40t
FC-RX820
Rear derailleur
- Shimano GRX RD-RX827 12 speeds
RD-RX827
Shifters
- Shimano GRX ST-RX825
ST-RX825

Brakes

1 part

Brakes
- Shimano GRX

Wheels and tires

2 parts

Rims
- Roval
Tires

Front: Tracer TLR All Terrain Gravel Tire 700x45, Tan Sidewall, Tubeless Ready, Rear: Tracer TLR All Terrain Gravel Tire 700x45, Tan Sidewall, Tubeless Ready Not identified

Cockpit and contact points

4 parts

Handlebar
- Specialized
Saddle

Body Geometry Power Expert Not identified
Seatpost
- Roval
Stem

Future Stem, Pro Not identified

Sizes and geometry

6 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 54cm

Table

Reach 387mm

Stack 592mm

Wheelbase 1041mm

Head angle 71.0°

Seat angle 74.0°

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 6 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	365	374	387	400	412	425
Stackmm	563	578	592	610	634	659
Top tube lengthmm	521	537	556	575	593	613
Seat tube lengthmm	400	430	470	500	530	560
Head tube lengthmm	90	104	116	135	161	187
Head tube angle	70°	70.5°	71°	71°	71°	71°
Seat tube angle	74.5°	74°	74°	74°	74°	74°
Chainstay lengthmm	430	430	430	430	430	430
Wheelbasemm	1019	1031	1041	1060	1081	1102
Front centermm	604	613	626	645	665	686
Bottom bracket dropmm	85	85	85	85	85	85
Bottom bracket heightmm	264	264	264	264	264	264
Standover heightmm	700	725	754	779	805	832
Fork rakemm	55	55	55	55	55	55
Trailmm	72	68	65	65	65	65
Stack/reach ratio	1.54	1.55	1.53	1.53	1.54	1.55
Suspension and parts
Crank lengthmm	170	170	172.5	172.5	175	175
Handlebar widthmm	380	400	420	420	440	440
Stem lengthmm	60	70	80	90	100	100
Seatpost lengthmm	330	330	380	380	380	380

Not published by the manufacturer: Front travel, Rear travel, Stem angle and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon
Bicycle weight: 8.9 kg

19.6 lb

Suspension

Suspension configuration: Hardtail
Front travel: 20 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 22.8 in
Highest gear: 116.0 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
Tire width: 45c
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

22.8 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2026
Sample: 1,452 bicycles with this information
Coverage: 73.2% of the class

Highest gear

116.0 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2026
Sample: 1,452 bicycles with this information
Coverage: 73.2% of the class

Shifting

Electronic

706 of 1,977 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2026
Sample: 1,977 bicycles with this information
Coverage: 99.6% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.7 km/h
Highest gear: 44.4 km/h

Total gear range 510%

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: 22.8–116.0 gear inches
Class reference (p10–p90): 22.8–127.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2026
Lowest gear: 1452 bicycles with this information, 73.2% of the class
Highest gear: 1452 bicycles with this information, 73.2% 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 Specialized Diverge 4 Expert Shimano GRX Di2	Specialized Diverge 3 Alloy Shimano Cues	Specialized Diverge 4 Comp Alloy SRAM Apex	Specialized Diverge 4 Comp Carbon SRAM Apex AXS S1000	Specialized Diverge 4 Expert SRAM Rival XPLR	Specialized Diverge 4 Pro LTD SRAM Red XPLR
Frame
Frame material	Carbon	Aluminum	Aluminum	Carbon	Carbon	Carbon
Bicycle weight	8.9 kg	10.48 kg	10.6 kg	9.7 kg	8.9 kg	8.01 kg
Suspension
Suspension configuration	Hardtail	Rigid	Hardtail	Hardtail	Hardtail	Hardtail
Front travel	20 mm	Not informed	20 mm	20 mm	20 mm	20 mm
Drivetrain
Front chainrings	1	2	1	1	1	1
Smallest chainring	40	32	40	40	40	40
Largest chainring	40	46	40	40	40	40
Rear sprockets	12	10	12	12	13	13
Smallest sprocket	10	11	11	10	10	10
Largest sprocket	51	39	50	52	46	46
Lowest gear	22.8 in	23.8 in	23.2 in	22.3 in	25.2 in	25.2 in
Highest gear	116.0 in	121.3 in	105.5 in	116.0 in	116.0 in	116.0 in
Cockpit
Derailleur hanger	UDH	Not informed	UDH	UDH	UDH	UDH
Shifting	Electronic	Mechanical	Mechanical	Electronic	Electronic	Electronic
Other specifications
Suspension	Hardtail	Rigid	Hardtail	Hardtail	Hardtail	Hardtail
Tire width	45c	40c	45c	45c	45c	45c
Wheel material	Carbon	Aluminum	Aluminum	Aluminum	Carbon	Carbon
Tire clearance	Not informed	Maximum tire width: 47c	Not informed	Not informed	Not informed	Not informed
Power meter	Not informed	Not informed	Not informed	Not informed	Not informed	SRAM RED AXS, Quarq Power Meter, 40t ChainringAdditional specification: Model display: Red AXSAdditional specification: Model id: red-axs