Diamondback Division 1

2021 UrbanCommuter Manufacturer page

Last known price: $765

Prices shown first for United States
Suspension: Rigid
Wheels: 650b
Drivetrain: 1 × 8 40t / 12–32t
Gear range: 267%
Frame: Aluminum
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

8 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

Custom Formed AL-6061 Heat Treated Aluminum 27.5 City Sport Geometry Not identified

AL-6061

Suspension

1 part

Fork

Aluminum Blades, with Post Mount Disc Not identified

Drivetrain

6 parts

Bottom bracket

Sealed Cartridge Bearing Not identified
Cassette
- Shimano
Chain
- KMC
Crankset
- Race Face SHI 12 Chainring – 104 BCD 40t
Rear derailleur
- Shimano Acera RD-M360
RD-M360
Shifters
- Shimano Altus SL-M315
SL-M315

Brakes

2 parts

Brake levers
- Tektro
Brakes
- Tektro
MD-M300

Wheels and tires

5 parts

Front hub

Aluminum Quick Release Disc, 32 Hole Not identified
Rear hub

Aluminum Quick Release Disc, 32 Hole Not identified
Rims

Aluminum DDM-5, 32h, 27.5", 28mm Wide Double Wall Not identified

DDM-5
Spokes

14g Stainless Steel with Brass Nipples Not identified
Tires
- Vee Tire

Cockpit and contact points

7 parts

Grips

ERGO Dual Density Not identified
Handlebar

Aluminum 31.8, 15mm Rise, 680mm Wide Not identified
Headset

1 1/8" Internal Cartridge Bearing Not identified
Pedals

Aluminum Body, Chromoly Spindle Not identified
Saddle

Urban Warrior Saddle Not identified
Seatpost

Aluminum Micro Adjust, 27.2 x 350/400mm Not identified
Stem

Forged Aluminum Alloy 31.8mm Bar Clamp Not identified

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 419mm

Stack 573mm

Wheelbase 1074mm

Head angle 70.0°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 650b wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	396	419	427	435
Stackmm	550	573	597	620
Top tube lengthmm	565	595	610	625
Seat tube lengthmm	380	430	480	530
Head tube lengthmm	120	145	170	195
Head tube angle	70°	70°	70°	70°
Seat tube angle	73°	73°	73°	73°
Chainstay lengthmm	425	425	425	425
Wheelbasemm	1043	1074	1090	1107
Front centermm	627	658	674	691
Bottom bracket dropmm	67.5	67.5	67.5	67.5
Bottom bracket heightmm	282	282	282	282
Standover heightmm	694	737	778	818
Fork rakemm	45	45	45	45
Trailmm	68	69	69	69
Stack/reach ratio	1.39	1.37	1.40	1.43
Suspension and parts
Crank lengthmm	170	175	175	175
Handlebar widthmm	680	680	700	700
Stem lengthmm	70	70	80	80
Seatpost lengthmm	350	350	350	350

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Aluminum

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 8
Smallest sprocket: 12
Largest sprocket: 32
Lowest gear: 34.4 in
Highest gear: 91.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 47c
Wheel material: Aluminum
Wheel size: 650b

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.2 km/h
Highest gear: 35.1 km/h

Total gear range 267%

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: 34.4–91.7 gear inches

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

Differences across 2021 builds
Specification	This bicycle Diamondback Division 1	Diamondback Division 2	Diamondback Division 24
Drivetrain
Smallest chainring	40	40	36
Largest chainring	40	40	36
Rear sprockets	8	9	7
Smallest sprocket	12	11	14
Largest sprocket	32	34	32
Lowest gear	34.4 in	32.4 in	27.0 in
Highest gear	91.7 in	100.0 in	61.7 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Mechanical disc
Other specifications
Tire width	47c	47c	Not informed
Travel	Configuration: Rigid	Configuration: Rigid	Configuration: RigidFront: Additional specification: Not available: Yes
Wheel size	650b	650b	24″