Ridley Dean Fast Shimano Dura-Ace Di2

Name: Ridley Dean Fast Shimano Dura-Ace Di2
Brand: Ridley

2021 RoadTriathlon Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €9,999 Last known price
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 36–52t / 11–30t
Gear range: 394%
Frame: Carbon
Brakes: Rim brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

12 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.

Frame and fork

1 part

Frame

Dean FAST, 30T-24T HM UD Carbon, F-Surface Plus, F-Tubing, F-Brakes, Integrated Cables Not identified

Suspension

1 part

Fork

Dean FAST, F-Split Fork , Integrated F-Brake with centerpull technology Not identified

Drivetrain

6 parts

Brakes

1 part

Brakes
- Shimano Dura-Ace BR-R9110
BR-R9110

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Handlebar
- Forza
Pedals

Not included ** Not identified
Saddle
- Selle Italia
Seatpost
- Forza
Stem

Dean FAST full carbon integrated cockpit, adjustable stack and reach Not identified

Sizes and geometry

6 sizes Open in the geometry plotter

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

Size SM

Table

Reach 410mm

Stack 518mm

Wheelbase 982mm

Head angle 73.0°

Seat angle 77.0°

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 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	380	395	410	425	442	—
Stackmm	488	503	518	533	550	—
Top tube lengthmm	493	511	530	548	569	—
Seat tube lengthmm	547	563	581	597	615	—
Head tube lengthmm	86	97	111	127	144	—
Head tube angle	71°	72.5°	73°	73°	73°	—
Seat tube angle	77°	77°	77°	77°	77°	—
Chainstay lengthmm	395	395	395	395	395	—
Wheelbasemm	959	966	982	1001	1024	—
Front centermm	575	581	597	616	639	—
Bottom bracket dropmm	70	70	70	70	70	—
Bottom bracket heightmm	266	266	266	266	266	—
Fork rakemm	44	44	44	44	44	—
Trailmm	69	60	57	57	57	—
Stack/reach ratio	1.28	1.27	1.26	1.25	1.24	—

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: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

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 / Triathlon Model year: 2021
Sample: 106 bicycles with this information
Coverage: 89.0% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Triathlon Model year: 2021
Sample: 106 bicycles with this information
Coverage: 89.0% of the class

Shifting

Electronic

71 of 119 bicycles with this information use electronic shifting.

Cohort: Road / Triathlon Model year: 2021
Sample: 119 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): 34.8–145.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Triathlon Model year: 2021
Lowest gear: 106 bicycles with this information, 89.0% of the class
Highest gear: 106 bicycles with this information, 89.0% 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 2021 builds
Specification	This bicycle Ridley Dean Fast Shimano Dura-Ace Di2	Ridley Dean Fast Shimano Ultegra Di2	Ridley Dean Shimano 105	Ridley Dean - MIX Shimano 105	Ridley Dean Shimano Ultegra
Drivetrain
Smallest chainring	36	Not informed	36	34	Not informed
Largest chainring	52	Not informed	52	50	Not informed
Largest sprocket	30	30	32	32	32
Lowest gear	34.8 in	Not informed	32.6 in	30.8 in	Not informed
Highest gear	137.1 in	Not informed	137.1 in	131.8 in	Not informed
Cockpit
Shifting	Electronic	Electronic	Mechanical	Mechanical	Mechanical
Other specifications
Wheel material	Carbon	Carbon	Aluminum	Aluminum	Aluminum
Bottom bracket standard	Not informed	Not informed	PF30	Not informed	Not informed