Alchemy Atlas — Disc Enve Dura-Ace Di2

2020 RoadRace Manufacturer page

Last known price: $10,499

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 36–52t / 11–30t
Gear range: 394%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

52cm 160–167
54cm 164–174
56cm 171–182
58cm 179–189
61cm 187–193

Components

16 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.

Drivetrain

7 parts

Brakes

2 parts

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 56cm

Table

Reach 390mm

Stack 572mm

Wheelbase 990mm

Head angle 73.2°

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 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	370	383	390	396	411
Stackmm	525	550	572	592	612
Top tube lengthmm	522	543	560	575	601
Seat tube lengthmm	470	520	540	560	575
Head tube lengthmm	130	150	170	190	210
Head tube angle	71.5°	73°	73.2°	73.5°	73.8°
Seat tube angle	74°	73.8°	73.5°	73.2°	72.8°
Chainstay lengthmm	415	415	415	415	415
Wheelbasemm	965	975	990	1000	1015
Front centermm	580	580	590	600	620
Bottom bracket dropmm	70	70	70	70	70
Bottom bracket heightmm	266	266	266	266	266
Fork rakemm	32	35	38	39	36
Trailmm	60.8	58.6	57.4	55.5	53.7
Stack/reach ratio	1.42	1.44	1.47	1.50	1.49

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

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 36
Largest chainring: 52
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 30
Lowest gear: 34.8 in
Highest gear: 137.1 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
Tire width: 28c
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

34.8 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2020
Sample: 505 bicycles with this information
Coverage: 80.6% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2020
Sample: 505 bicycles with this information
Coverage: 80.6% of the class

Shifting

Electronic

251 of 626 bicycles with this information use electronic shifting.

Cohort: Road / Race Model year: 2020
Sample: 626 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.3 km/h
Highest gear: 52.5 km/h

Total gear range 394%

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: 34.8–137.1 gear inches
Class reference (p10–p90): 30.8–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Race Model year: 2020
Lowest gear: 505 bicycles with this information, 80.6% of the class
Highest gear: 505 bicycles with this information, 80.6% 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 2020 builds
Specification	This bicycle Alchemy Atlas — Disc Enve Dura-Ace Di2	Alchemy Atlas — Road Force eTap AXS	Alchemy Atlas — Road Red eTap AXS	Alchemy Atlas — Disc Ultegra Di2	Alchemy Atlas — Disc Enve Ultegra Di2	Alchemy Atlas — Disc Ultegra Mechanical
Drivetrain
Smallest chainring	36	33	33	36	36	36
Largest chainring	52	46	46	52	52	52
Rear sprockets	11	12	12	11	11	11
Smallest sprocket	11	10	10	11	11	11
Largest sprocket	30	33	33	30	30	30
Lowest gear	34.8 in	29.0 in	29.0 in	34.8 in	34.8 in	34.8 in
Highest gear	137.1 in	133.4 in	133.4 in	137.1 in	137.1 in	137.1 in
Cockpit
Shifting	Electronic	Electronic	Electronic	Electronic	Electronic	Mechanical