Ridley Astr RS Shimano GRX800 Di2 2x

2024 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €7,299 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 31–48t / 11–34t
Gear range: 479%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 156–166
SM 163–174
MD 171–182
LG 179–189
XL 185–195

Components

11 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

ASTR RS, Ultra HM carbon, BB86, TA12x142 Not identified

Suspension

1 part

Fork

ASTR RS, TA 12x100, Integrated forkcrown diffuser; 50mm rake, D-Shape steerer Not identified

Drivetrain

7 parts

Brakes

2 parts

Brakes

Flat Mount Not identified
Disc rotors

REVER Flat Mount Adapter, Rear 140 -> 160 Not identified

Wheels and tires

1 part

Rims
- DT Swiss

Cockpit and contact points

3 parts

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 406mm

Stack 571mm

Wheelbase 1043mm

Head angle 71.5°

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 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	376	392	406	419	432
Stackmm	536	550	571	595	619
Top tube lengthmm	525	550	570	590	615
Seat tube lengthmm	475	500	520	550	575
Head tube lengthmm	115	130	150	175	200
Head tube angle	71°	71°	71.5°	71.5°	71.5°
Seat tube angle	74.5°	74°	74°	74°	73.5°
Chainstay lengthmm	425	425	425	425	425
Wheelbasemm	1006	1027	1043	1064	1085
Front centermm	592	613	629	650	671
Bottom bracket dropmm	75	75	75	75	75
Bottom bracket heightmm	274	274	274	274	274
Fork rakemm	50	50	50	50	50
Trailmm	67	67	64	64	64
Stack/reach ratio	1.43	1.40	1.41	1.42	1.43

Not published by the manufacturer: Standover height, 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
Weight limit: 110 kg

242.5 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 31
Largest chainring: 48
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 26.4 in
Highest gear: 126.6 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: BB86/BB92
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

26.4 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,716 bicycles with this information
Coverage: 76.6% of the class

Highest gear

126.6 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2024
Sample: 1,716 bicycles with this information
Coverage: 76.6% of the class

Shifting

Electronic

771 of 2,238 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2024
Sample: 2,238 bicycles with this information
Coverage: 99.9% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.1 km/h
Highest gear: 48.5 km/h

Total gear range 479%

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: 26.4–126.6 gear inches
Class reference (p10–p90): 23.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2024
Lowest gear: 1716 bicycles with this information, 76.6% of the class
Highest gear: 1716 bicycles with this information, 76.6% 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 2024 builds

Differences across 2024 builds
Specification	This bicycle Ridley Astr RS Shimano GRX800 Di2 2x	Ridley Astr - Classified Rival AXS 1x12	Ridley Astr RS SRAM Force XPLR	Ridley Astr RS SRAM Red XPLR 1x13	Ridley Astr Shimano GRX600 2x12sp	Ridley Astr Shimano GRX800 Di2 2x
Frame
Weight limit	110 kg	110 kg	Not informed	110 kg	110 kg	110 kg
Drivetrain
Front chainrings	2	2	1	1	2	2
Smallest chainring	31	Not informed	42	42	30	31
Largest chainring	48	Not informed	42	42	46	48
Rear sprockets	12	12	12	13	12	12
Smallest sprocket	11	11	10	10	11	11
Largest sprocket	34	34	44	46	36	34
Lowest gear	26.4 in	Not informed	27.7 in	26.5 in	24.2 in	26.4 in
Highest gear	126.6 in	Not informed	121.8 in	121.8 in	121.3 in	126.6 in
Cockpit
Shifting	Electronic	Electronic	Electronic	Electronic	Mechanical	Electronic
Other specifications
Wheel material	Carbon	Aluminum	Carbon	Carbon	Aluminum	Carbon
Power meter	Not informed	Not informed	Not informed	SRAM RED XPLR incl Powermeter // 172,5 // 42Additional specification: Model display: Red AXSAdditional specification: Model id: red-axs	Not informed	Not informed