Scott Speedster CX 20 Disc

Name: Scott Speedster CX 20 Disc
Brand: Scott

2017 RoadCyclocross Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 10 34–46t / 11–32t
Gear range: 394%
Weight: 10.96 kg 24.2 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical 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 20 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

Speedster CX Disc / D.Butted 6061 Alloy / CX geometry / Integrated Headtube Not identified

Suspension

1 part

Fork

Speedster Carbon/Alloy Disc 1 1/8" Alloy steerer Not identified

Drivetrain

7 parts

Bottom bracket
- Shimano BB-RS500
BB-RS500
Cassette
- Shimano CS-HG500 10 speeds 11–32t
CS-HG500HG-500
Chain
- KMC X10 10 speeds
Crankset
- Shimano FC-R460
FC-R460
Front derailleur
- Shimano Tiagra FD-4700 2 speeds
FD-4700
Rear derailleur
- Shimano Tiagra RD-4700-GS 10 speeds
RD-4700-GS
Shifters
- Shimano Tiagra ST-4700
ST-4700

Brakes

1 part

Brakes
- Shimano BR-R317
BR-R317SM-RT56

Wheels and tires

5 parts

Front hub
- Formula
Rear hub
- Formula
Rims
- Syncros
Spokes

HTI - Standard Black 2mm Not identified
Tires
- Kenda Kwick

Cockpit and contact points

5 parts

Handlebar
- Syncros
Headset

Integrated Cartridge Not identified
Saddle
- Syncros
Seatpost
- Syncros
Stem
- Syncros

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 378mm

Stack 564mm

Wheelbase 1017mm

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 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	360	369	378	390	405
Stackmm	521.8	545.5	564.4	583.3	602.2
Top tube lengthmm	505	525	545	568	590
Seat tube lengthmm	490	520	540	560	580
Head tube lengthmm	95	120	140	160	180
Head tube angle	70°	70°	71°	71°	71°
Seat tube angle	74.5°	74°	73.5°	73°	73°
Chainstay lengthmm	422	422	422	422	422
Wheelbasemm	984	1002	1017	1043	1056
Front centermm	572	589	604	630	643
Bottom bracket dropmm	68	68	68	68	68
Bottom bracket heightmm	281	281	281	281	281
Standover heightmm	749.8	775.7	796.2	814.1	832
Fork rakemm	40	40	49	56	48
Trailmm	82	82	66	59	67
Stack/reach ratio	1.45	1.48	1.49	1.50	1.49
Suspension and parts
Stem lengthmm	90	100	110	120	120

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Carbon
Bicycle weight: 10.96 kg

24.2 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 46
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 30.8 in
Highest gear: 121.3 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: BSA
Tire width: 35c
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 below the central range for this class.

Cohort: Road / Cyclocross Model year: 2017
Sample: 87 bicycles with this information
Coverage: 97.7% of the class

Highest gear

121.3 gear inches

This value is within the central range for this class.

Cohort: Road / Cyclocross Model year: 2017
Sample: 87 bicycles with this information
Coverage: 97.7% of the class

Shifting

Mechanical

2 of 89 bicycles with this information use electronic shifting.

Cohort: Road / Cyclocross Model year: 2017
Sample: 89 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 46.4 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: 30.8–121.3 gear inches
Class reference (p10–p90): 32.2–121.3 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Cyclocross Model year: 2017
Lowest gear: 87 bicycles with this information, 97.7% of the class
Highest gear: 87 bicycles with this information, 97.7% 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 2017 builds

Differences across 2017 builds
Specification	This bicycle Scott Speedster CX 20 Disc	Scott Contessa Speedster 15	Scott Contessa Speedster 25	Scott Contessa Speedster 35	Scott Contessa Speedster 45	Scott Speedster 10 Disc
Frame
Intended fit	Unisex	womens	womens	womens	womens	Unisex
Fork material	Carbon	Carbon	Carbon	Carbon	Aluminum	Carbon
Bicycle weight	10.96 kg	9.05 kg	9.35 kg	9.5 kg	10 kg	10.2 kg
Drivetrain
Front chainrings	2	2	2	2	3	2
Smallest chainring	34	34	34	34	30	34
Largest chainring	46	50	50	50	50	50
Rear sprockets	10	11	10	9	8	11
Largest sprocket	32	32	32	30	30	32
Lowest gear	30.8 in	30.8 in	30.8 in	32.9 in	29.0 in	30.8 in
Highest gear	121.3 in	131.8 in	131.8 in	131.8 in	131.8 in	131.8 in
Brakes
Brake type	Mechanical disc	Rim brake	Rim brake	Rim brake	Rim brake	Hydraulic disc
Other specifications
Bottom bracket standard	BSA	BSA	BSA	Not informed	Not informed	BSA
Tire width	35c	25c	25c	25c	25c	28c