Cannondale Topstone Sora

Name: Cannondale Topstone Sora
Brand: Cannondale

2020 RoadGravel Manufacturer page

Last known price: $1,250

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 9 30–46t / 11–34t
Gear range: 474%
Weight: 10.3 kg 22.7 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

17 of 23 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

SmartForm C2 Alloy, 142x12 thru-axle, tapered headtube, flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts, 142x12 thru-axle, Tapered headtube, Flat mount disc, StraightShot internal cable routing, Multiple gear/bottle mounts Not identified

Suspension

1 part

Fork

Full Carbon, 1-1/8" to 1-1/4" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru axle Not identified

Drivetrain

7 parts

Bottom bracket
- FSA
Cassette
- SunRace
Chain
- KMC Z9 9 speeds
Crankset
- FSA TEMPO ADVENTURE 46/30t
Front derailleur
- Shimano Sora FD-R3000 2 speeds
FD-R3000
Rear derailleur
- Shimano Sora
Shifters
- Shimano Sora

Brakes

2 parts

Wheels and tires

5 parts

Front hub
- Formula RX-512
RX-512
Rear hub
- Formula
RX-142
Rims

RD 2.0, 28h Not identified
Spokes

Stainless steel, 14g Not identified
Tires
- WTB Riddler

Cockpit and contact points

7 parts

Grips
- Cannondale
Handlebar
- Cannondale
Headset

Topstone Si, 25mm Alloy top cap Not identified
Pedals

Not Included Not identified
Saddle
- Cannondale
Seatpost
- Cannondale
Stem
- Cannondale

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

The drawing needs seat tube angle, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	368	377	385	394	402
Stackmm	518	549	579	610	640
Top tube lengthmm	525	544	561	579	596
Seat tube lengthmm	410	458	505	553	600
Head tube lengthmm	89	118	149	182	214
Head tube angle	70°	71°	71°	71°	71°
Chainstay lengthmm	430	430	430	430	430
Wheelbasemm	1011	1022	1040	1060	1078
Front centermm	593	603	621	641	659
Bottom bracket dropmm	75	75	75	75	75
Bottom bracket heightmm	284	284	284	284	284
Standover heightmm	703	744	784	825	863
Fork rakemm	55	55	55	55	55
Trailmm	72	65	65	65	65
Stack/reach ratio	1.41	1.46	1.50	1.55	1.59

Not published by the manufacturer: Seat tube angle, 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: Aluminum
Fork material: Carbon
Bicycle weight: 10.3 kg

22.7 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 30
Largest chainring: 46
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 25.6 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

Tire width: 37c
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

25.6 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2020
Sample: 640 bicycles with this information
Coverage: 82.6% of the class

Highest gear

121.3 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2020
Sample: 640 bicycles with this information
Coverage: 82.6% of the class

Shifting

Mechanical

123 of 774 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2020
Sample: 774 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.8 km/h
Highest gear: 46.4 km/h

Total gear range 474%

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: 25.6–121.3 gear inches
Class reference (p10–p90): 24.3–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2020
Lowest gear: 640 bicycles with this information, 82.6% of the class
Highest gear: 640 bicycles with this information, 82.6% 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 Cannondale Topstone Sora	Cannondale Topstone 105	Cannondale Topstone Apex 1	Cannondale Topstone Carbon 105	Cannondale Topstone Carbon Force eTap AXS	Cannondale Topstone Carbon Lefty 1
Frame
Frame material	Aluminum	Aluminum	Aluminum	Carbon	Carbon	Carbon
Bicycle weight	10.3 kg	9.9 kg	Not informed	9.5 kg	8.7 kg	Not informed
Suspension
Suspension configuration	Rigid	Rigid	Rigid	Rigid	Rigid	Hardtail
Front travel	Not informed	Not informed	Not informed	Not informed	Not informed	30 mm
Drivetrain
Front chainrings	2	2	1	2	2	1
Smallest chainring	30	30	40	30	33	40
Largest chainring	46	46	40	46	46	40
Rear sprockets	9	11	11	11	12	12
Smallest sprocket	11	11	11	11	10	10
Largest sprocket	34	34	42	34	33	50
Lowest gear	25.6 in	25.6 in	27.6 in	25.6 in	29.0 in	23.2 in
Highest gear	121.3 in	121.3 in	105.5 in	121.3 in	133.4 in	116.0 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost
Shifting	Mechanical	Mechanical	Mechanical	Mechanical	Electronic	Electronic
Other specifications
Suspension	Rigid	Rigid	Rigid	Rigid	Rigid	Hardtail
Tire width	37c	37c	40c	37c	37c	47c
Wheel material	Aluminum	Aluminum	Aluminum	Aluminum	Carbon	Carbon
Bottom bracket standard	Not informed	Not informed	Not informed	PF30	BB30	BB30
Fork spring	Not informed	Not informed	Not informed	Not informed	Not informed	Air