Genesis Datum

2018 RoadGravel Manufacturer page

Price: Not published

Prices shown first for United States
United Kingdom: £2,499 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 11 42t / 11–42t
Gear range: 382%
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

16 of 19 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

24/30T Modulus Carbon Road Disc w/ Tapered Headtube & Fully Internal Cable Routing Not identified

Suspension

1 part

Fork

Full Carbon Fork w/ 1-1/2" - 1-1/8" Tapered Steerer w/ 12mm TA Not identified

Drivetrain

6 parts

Bottom bracket
- SRAM
Cassette
- SRAM PG-1130 11 speeds 11–42t
PG-1130
Chain
- KMC X11 11 speeds
Crankset
- SRAM Rival 1 10 speeds 42t
Rear derailleur
- SRAM Rival 10 speeds
Shifters
- SRAM Rival

Brakes

2 parts

Wheels and tires

5 parts

Front hub
- Formula RX-300
RX-300RX-812
Rear hub
- Formula RX-300
RX-300RX-812
Rims
- Jalco
Spokes

Stainless steel 14g Not identified
Tires
- WTB Exposure

Cockpit and contact points

4 parts

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 385mm

Stack 585mm

Wheelbase 1017mm

Head angle 72.0°

Seat angle 73.3°

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
Frame
Reachmm	365	375	385	395	405
Stackmm	544	563	585	602	621
Top tube lengthmm	526	542	561	579	595
Seat tube lengthmm	460	490	520	540	570
Head tube lengthmm	115	135	155	175	195
Head tube angle	72°	72°	72°	72°	72°
Seat tube angle	73.5°	73.5°	73.25°	73°	73°
Chainstay lengthmm	420	420	420	420	420
Wheelbasemm	985	1001	1017	1033	1050
Front centermm	576	592	607	623	640
Bottom bracket dropmm	72	72	72	72	72
Bottom bracket heightmm	277	277	277	277	277
Standover heightmm	752	777	801	816	839
Fork rakemm	50	50	50	50	50
Trailmm	59	59	59	59	59
Stack/reach ratio	1.49	1.50	1.52	1.52	1.53
Suspension and parts
Crank lengthmm	170	172.5	172.5	175	175
Handlebar widthmm	400	420	420	440	440
Stem lengthmm	90	100	100	110	110

Not published by the manufacturer: Front travel, Rear travel, 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: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 29.0 in
Highest gear: 110.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Shifting: Mechanical

Additional specifications

Tire width: 32c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

29.0 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2018
Sample: 204 bicycles with this information
Coverage: 99.0% of the class

Highest gear

110.7 gear inches

This value is below the central range for this class.

Cohort: Road / Gravel Model year: 2018
Sample: 204 bicycles with this information
Coverage: 99.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.1 km/h
Highest gear: 42.4 km/h

Total gear range 382%

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: 29.0–110.7 gear inches
Class reference (p10–p90): 24.9–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2018
Lowest gear: 204 bicycles with this information, 99.0% of the class
Highest gear: 204 bicycles with this information, 99.0% 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 2018 builds

Differences across 2018 builds
Specification	This bicycle Genesis Datum	Genesis Datum 20 W
Frame
Intended fit	Unisex	womens
Drivetrain
Front chainrings	1	2
Smallest chainring	42	34
Largest chainring	42	50
Largest sprocket	42	32
Lowest gear	29.0 in	30.8 in
Highest gear	110.7 in	131.8 in
Other specifications
Bottom bracket standard	Not informed	BB86/BB92