Specialized Ruby Disc

2015 RoadEndurance Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 10 34–50t / 11–32t
Gear range: 428%
Frame: Carbon
Brakes: Mechanical disc

Sizes

Size guide

44cm
48cm
51cm
54cm
57cm

The manufacturer did not publish rider heights for these sizes.

Components

14 of 18 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

Specialized FACT 9r carbon, FACT construction, Women's Endurance Geometry, women's layup, Zertz, threaded BB Not identified

Suspension

1 part

Fork
- Specialized

Drivetrain

7 parts

Brakes

1 part

Brakes
- TRP Spyre

Wheels and tires

2 parts

Rims

Front: AXIS 2.0 Disc SCS, Rear: AXIS 2.0 Disc SCS Not identified
Tires
- Specialized

Cockpit and contact points

6 parts

Handlebar
- Specialized
Headset

1-1/8"" stainless steel cartridge bearings, 20mm carbon cone spacer, w/ 20mm of carbon spacers Not identified
Pedals

Nylon flat test ride, loose-ball, w/ reflectors Not identified
Saddle
- Ritchey Comp
Seatpost
- Specialized
Stem
- Specialized

Sizes and geometry

5 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 51cm

Table

Reach 370mm

Stack 546mm

Wheelbase 991mm

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 Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	358	370	370	374	390
Stackmm	518	531	546	568	590
Top tube lengthmm	509	522	529	539	566
Seat tube lengthmm	363	391.5	421.5	456.5	486.5
Head tube lengthmm	120	130	145	165	190
Head tube angle	70.25°	71.25°	71.5°	72°	72°
Seat tube angle	74.5°	74.5°	74°	74°	73.5°
Chainstay lengthmm	412	415	415	415	417
Wheelbasemm	977	988	991	995	1021
Front centermm	577	584	587	591	614
Bottom bracket dropmm	73	73	73	73	71.5
Bottom bracket heightmm	263	263	263	263	264
Standover heightmm	702	721	740	768	792
Fork rakemm	51	51	51	49	49
Trailmm	68	62	60	59	59
Stack/reach ratio	1.45	1.44	1.48	1.52	1.51
Suspension and parts
Crank lengthmm	165	165	170	170	170
Handlebar widthmm	360	380	400	400	420
Stem lengthmm	75	75	90	100	100

Not published by the manufacturer: Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: womens
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: 10
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 30.8 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB30
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

30.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2015
Sample: 141 bicycles with this information
Coverage: 94.0% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2015
Sample: 141 bicycles with this information
Coverage: 94.0% of the class

Shifting

Mechanical

14 of 150 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2015
Sample: 150 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 50.5 km/h

Total gear range 428%

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: 30.8–131.8 gear inches
Class reference (p10–p90): 30.8–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2015
Lowest gear: 141 bicycles with this information, 94.0% of the class
Highest gear: 141 bicycles with this information, 94.0% 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 2015 builds

Differences across 2015 builds
Specification	This bicycle Specialized Ruby Disc	Specialized Ruby Comp	Specialized Ruby Double	Specialized Ruby Elite	Specialized Ruby Expert	Specialized Ruby Pro Disc
Drivetrain
Smallest chainring	34	Not informed	34	Not informed	Not informed	Not informed
Largest chainring	50	Not informed	50	Not informed	Not informed	Not informed
Rear sprockets	10	11	9	11	11	11
Smallest sprocket	11	11	11	Not informed	11	11
Largest sprocket	32	32	32	Not informed	32	32
Lowest gear	30.8 in	Not informed	30.8 in	Not informed	Not informed	Not informed
Highest gear	131.8 in	Not informed	131.8 in	Not informed	Not informed	Not informed
Brakes
Brake type	Mechanical disc	Rim brake	Rim brake	Rim brake	Rim brake	Hydraulic disc
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Mechanical	Mechanical	Electronic
Other specifications
Bottom bracket standard	BB30	BB30	BSA	BB30	BB30	BSA
Wheel material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Carbon