Dolan Atreus Carbon Road e Shimano Ultegra R8170 Di2 12spd

2023 RoadEndurance Electric bicycle Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £4,599 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 34–50t / 11–30t
Gear range: 401%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–170
MD 168–179
LG 176–187

Components

12 of 17 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

Atreus Carbon E-Frame - SML Not identified

Electric system

1 part

Charger
- Shimano

Suspension

1 part

Fork

Atreus Carbon Disc Road Fork Not identified

Drivetrain

5 parts

Brakes

1 part

Brakes
- Shimano Ultegra BR-R8170
BR-R8170

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Handlebar
- Deda
Pedals

None-Fitted Not identified
Saddle
- Selle Italia ST 5 Flow
Seatpost

Atreus Carbon Aero Seatpost Not identified
Stem
- Deda

Other components

1 part

Fenders

None-Fitted Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

The drawing needs wheelbase, chainstay length and bottom bracket drop / Bottom bracket height, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	372	377	386
Stackmm	538.7	562.7	590.3
Top tube lengthmm	529.5	549	569.9
Seat tube lengthmm	465	492	532
Head tube lengthmm	133.4	155	159.1
Head tube angle	70.7°	71.5°	71.5°
Seat tube angle	73.7°	73°	72.7°
Stack/reach ratio	1.45	1.49	1.53

Not published by the manufacturer: Chainstay length, Wheelbase, Front center, Bottom bracket drop, Bottom bracket height, Standover height, Fork rake, Trail, 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: 12
Smallest sprocket: 11
Largest sprocket: 30
Lowest gear: 32.9 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

Tire width: 25c
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

32.9 gear inches

This value is above 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: 12.6 km/h
Highest gear: 50.5 km/h

Total gear range 401%

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: 32.9–131.8 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 Dolan Atreus Carbon Road e Shimano Ultegra R8170 Di2 12spd	Dolan Atreus Carbon Road e-Bike - HDR Shimano 105 R7020	Dolan Atreus Carbon Road e Shimano 12s 105 R7170 Di2	Dolan Atreus Carbon Road e Shimano Dura-Ace R9270 Di2 12spd	Dolan Atreus Carbon Road e-Bike - HDR Shimano Ultegra R8020
Drivetrain
Rear sprockets	12	11	12	12	11
Largest sprocket	30	28	34	30	28
Lowest gear	32.9 in	35.2 in	29.0 in	32.9 in	35.2 in
Cockpit
Shifting	Electronic	Mechanical	Electronic	Electronic	Mechanical