ARC8 Eero GRX 1x12

2023 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €4,199 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 12 42t / 10–51t
Gear range: 510%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 170–177
MD 174–182
LG 179–188
XL 186+

Components

10 of 16 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

ARC8 Eero Carbon Not identified

Suspension

1 part

Fork

ARC8 Eero Carbon Not identified

Drivetrain

7 parts

Bottom bracket
- Shimano SM-BBR60
SM-BBR60
Cassette
- Shimano Deore XT CS-M8100 12 speeds 10–51t
CS-M8100
Chain
- Shimano Deore XT CN-M8100
CN-M8100
Crankset
- Shimano GRX 42t
Front derailleur

None
Rear derailleur
- Shimano GRX
Shifters
- Shimano GRX

Brakes

1 part

Brakes

Hydraulic Disc Not identified

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Handlebar

Alloy handlebar with flare Not identified
Headset

ARC8 Not identified
Saddle
- Selle Italia Novus Boost Evo 3D
Seatpost
- Faserwerk
Stem

ICH Stem Not identified

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 376mm

Stack 568mm

Wheelbase 1012mm

Head angle 71.0°

Seat angle 73.5°

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 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	364	376	388	400
Stackmm	545	568	593	618
Top tube lengthmm	525	545	564	583
Seat tube lengthmm	510	550	570	600
Head tube lengthmm	137	157	170	197
Head tube angle	70°	71°	71°	71°
Seat tube angle	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	420	420	420	420
Wheelbasemm	1002	1012	1032	1053
Front centermm	594	603	623	644
Bottom bracket dropmm	75	75	75	75
Bottom bracket heightmm	274	274	274	274
Standover heightmm	774	809	830	858
Fork rakemm	50	50	50	50
Trailmm	74	67	67	67
Stack/reach ratio	1.50	1.51	1.53	1.55

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
Frame weight: 0.99 kg

2.2 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 23.9 in
Highest gear: 121.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire clearance: Maximum tire width: 50c
Tire width: 40c
Wheel material: Aluminum
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

23.9 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2023
Sample: 1,655 bicycles with this information
Coverage: 79.1% of the class

Highest gear

121.8 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2023
Sample: 1,655 bicycles with this information
Coverage: 79.1% of the class

Shifting

Mechanical

688 of 2,087 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2023
Sample: 2,087 bicycles with this information
Coverage: 99.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.1 km/h
Highest gear: 46.7 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: 23.9–121.8 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: 2023
Lowest gear: 1655 bicycles with this information, 79.1% of the class
Highest gear: 1655 bicycles with this information, 79.1% 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

Differences across 2023 builds
Specification	This bicycle ARC8 Eero GRX 1x12	ARC8 Eero Ekar	ARC8 Eero Force Wide AXS eTap 1x12	ARC8 Eero Force Wide AXS eTap 1x	ARC8 Eero GRX 2x12	ARC8 Eero GRX Di2 1x11
Drivetrain
Front chainrings	1	1	1	1	2	1
Smallest chainring	42	38	40	40	31	40
Largest chainring	42	38	40	40	48	40
Rear sprockets	12	13	12	12	12	11
Smallest sprocket	10	10	10	10	11	11
Largest sprocket	51	44	44	44	34	42
Lowest gear	23.9 in	25.1 in	26.4 in	26.4 in	26.4 in	27.6 in
Highest gear	121.8 in	110.2 in	116.0 in	116.0 in	126.6 in	105.5 in
Cockpit
Shifting	Mechanical	Mechanical	Electronic	Electronic	Mechanical	Mechanical
Other specifications
Tire clearance	Maximum tire width: 50c	Not informed	Maximum tire width: 50c	Not informed	Maximum tire width: 50c	Maximum tire width: 50c
Tire width	40c	45c	40c	45c	40c	40c
Wheel material	Aluminum	Aluminum	Carbon	Aluminum	Aluminum	Aluminum
Battery	Not informed	Not informed	Not informed	Not informed	Not informed	Shimano BRDN300