Diamondback Serios AF

Name: Diamondback Serios AF
Brand: Diamondback

2017 RoadTriathlon

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 39–53t / 11–25t
Gear range: 309%
Frame: Carbon
Brakes: Rim brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

18 of 22 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

Serios Aero TimeTrial Frameset, Unidirectional Carbon, 1-3/8" Taper, Not identified

Suspension

1 part

Fork
- Diamondback

Drivetrain

7 parts

Bottom bracket
- Praxis
Cassette
- Shimano CS-9000 11–25t
CS-9000
Chain
- Shimano CN-9000
CN-9000
Crankset
- Shimano FC-9000 53/39t
FC-9000
Front derailleur
- Shimano Dura-Ace FD-9000
FD-9000
Rear derailleur
- Shimano Dura-Ace RD-9000
RD-9000
Shifters
- Shimano Dura-Ace SL-BSR1 2 speeds
SL-BSR1

Brakes

2 parts

Wheels and tires

4 parts

Front hub
- HED
Rear hub
- HED
Rims

974.3mm Not identified
Tires
- Continental

Cockpit and contact points

7 parts

Grips

DBR Race tape w/Gel Not identified
Handlebar
- HED
Headset
- FSA
IS-2-138
Pedals

Resin Test Ride Pedal Not identified
Saddle
- ISM
Seatpost
- Ritchey
Stem
- HED

Sizes and geometry

4 sizes Open in the geometry plotter

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

Size MD

Table

Reach 408mm

Stack 532mm

Wheelbase 992mm

Head angle 72.5°

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 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	395.1	408	420.6	433.5
Stackmm	501	531.6	551.6	572.1
Seat tube lengthmm	514.2	545.6	566.1	587.1
Head tube lengthmm	103.4	124.9	145.9	167.4
Head tube angle	72.5°	72.5°	72.5°	72.5°
Seat tube angle	77°	77°	77°	77°
Chainstay lengthmm	400	400	400	400
Wheelbasemm	974.3	992	1010.8	1030.3
Front centermm	583	604	622	642
Bottom bracket dropmm	65	75	75	75
Bottom bracket heightmm	271	261	261	261
Standover heightmm	742.2	763.1	783.5	804.5
Fork rakemm	45	45	45	45
Trailmm	59	59	59	59
Stack/reach ratio	1.27	1.30	1.31	1.32
Suspension and parts
Crank lengthmm	170	172.5	172.5	175
Handlebar widthmm	400	400	400	400
Stem lengthmm	95	95	105	115
Seatpost lengthmm	270	270	270	350

Not published by the manufacturer: Top tube length, Front travel, Rear travel, Stem angle 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: 39
Largest chainring: 53
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 25
Lowest gear: 45.2 in
Highest gear: 139.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: PF30
Tire width: 22c
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

45.2 gear inches

This value is above the central range for this class.

Cohort: Road / Triathlon Model year: 2017
Sample: 65 bicycles with this information
Coverage: 98.4% of the class

Highest gear

139.7 gear inches

This value is within the central range for this class.

Cohort: Road / Triathlon Model year: 2017
Sample: 65 bicycles with this information
Coverage: 98.4% of the class

Shifting

Mechanical

32 of 66 bicycles with this information use electronic shifting.

Cohort: Road / Triathlon Model year: 2017
Sample: 66 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 17.3 km/h
Highest gear: 53.5 km/h

Total gear range 309%

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: 45.2–139.7 gear inches
Class reference (p10–p90): 37.3–139.7 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Triathlon Model year: 2017
Lowest gear: 65 bicycles with this information, 98.4% of the class
Highest gear: 65 bicycles with this information, 98.4% 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 Diamondback Serios AF	Diamondback Serios F
Drivetrain
Largest sprocket	25	28
Lowest gear	45.2 in	40.4 in
Cockpit
Shifting	Mechanical	Electronic
Other specifications
Tire width	22c	23c
Wheel material	Aluminum	Carbon