Diamondback El Oso de Acero

Name: Diamondback El Oso de Acero
Brand: Diamondback

2017 MountainFat bike

Suspension: Rigid
Wheels: 26″
Drivetrain: 3 × 9 22–40t / 12–36t
Gear range: 545%
Frame: Steel
Brakes: Mechanical disc

Rider height by size (cm)

Size guide

SM 158–170
MD 168–179
LG 176–187

Components

8 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

El Oso Butted Heat Treat Steel 1-1/8"Headtube, 150mm Rear OLD, Fits up to 26x5" tire Not identified

Suspension

1 part

Fork

DB El Oso Custom Rigid Steel Fork, 1-1/8", 135mm QR Dropouts Not identified

Drivetrain

7 parts

Bottom bracket

Sealed Cartridge Not identified
Cassette
- Shimano CS-HG300 12–36t
CS-HG300
Chain
- KMC
Crankset
- Shimano Acera FC-M3000 40/30/22t
FC-M3000
Front derailleur
- Shimano FD-M410
FD-M410
Rear derailleur
- Shimano RD-M4000
RD-M4000
Shifters
- Shimano Alivio SL-M4000
SL-M4000

Brakes

2 parts

Brake levers
- Tektro
Brakes
- Tektro

Wheels and tires

5 parts

Front hub

Alloy 32h Disc, 3/8" Nutted 135mm Not identified
Rear hub

Alloy 32h Dsic, Cassette, 3/8" Nutted 150mm Not identified
Rims

DB75mm Wide w/28mm cutout, singlewall 32h Not identified
Spokes

14g Stainless Steel Not identified
Tires

Chaoyang Cruiser 26"x4.0" Not identified

Cockpit and contact points

7 parts

Grips

DB High Density Foam Grip Not identified
Handlebar

DB Pro Bar740mm width, 15mm rise, 31.8mm barbore Not identified
Headset

Threadless 1-1/8" Aheadset Not identified
Pedals

DB Alloy w/ molded traction pins Not identified
Saddle

DB Race M-series saddle w/ cromo rails Not identified
Seatpost

DB Alloy 27.2mm Not identified
Stem

DB 3D Forged, +/-7° Rise 31.8 Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Geometry diagram unavailable

The drawing needs wheelbase, reach, stack and bottom bracket drop / Bottom bracket height, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	580	609	630
Seat tube lengthmm	400	450	500
Head tube lengthmm	110	120	120
Head tube angle	68.5°	68.5°	68.5°
Seat tube angle	74°	74°	74°
Chainstay lengthmm	460	460	460
Standover heightmm	787	804	820

Not published by the manufacturer: Reach, Stack, Wheelbase, Front center, Bottom bracket drop, Bottom bracket height, Fork rake, Trail, Stack/reach ratio, 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: Steel
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 3
Smallest chainring: 22
Largest chainring: 40
Rear sprockets: 9
Smallest sprocket: 12
Largest sprocket: 36
Lowest gear: 15.9 in
Highest gear: 86.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 4″
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 26″

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

15.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Fat bike Model year: 2017
Sample: 65 bicycles with this information
Coverage: 95.5% of the class

Highest gear

86.7 gear inches

This value is above the central range for this class.

Cohort: Mountain / Fat bike Model year: 2017
Sample: 65 bicycles with this information
Coverage: 95.5% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.1 km/h
Highest gear: 33.2 km/h

Total gear range 545%

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: 15.9–86.7 gear inches
Class reference (p10–p90): 15.5–86.7 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Fat bike Model year: 2017
Lowest gear: 65 bicycles with this information, 95.5% of the class
Highest gear: 65 bicycles with this information, 95.5% 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 El Oso de Acero	Diamondback El Oso	Diamondback El Oso Dos	Diamondback El Oso Grande	Diamondback El Oso Nino 20
Frame
Frame material	Steel	Aluminum	Aluminum	Aluminum	Steel
Fork material	Steel	Not informed	Aluminum	Aluminum	Steel
Bicycle weight	Not informed	Not informed	16.15 kg	Not informed	Not informed
Suspension
Suspension configuration	Rigid	Hardtail	Rigid	Rigid	Rigid
Front travel	Not informed	100 mm	Not informed	Not informed	Not informed
Drivetrain
Front chainrings	3	2	2	2	1
Smallest chainring	22	26	24	26	40
Largest chainring	40	36	36	36	40
Rear sprockets	9	10	10	10	7
Smallest sprocket	12	11	11	11	Not informed
Largest sprocket	36	36	42	36	Not informed
Lowest gear	15.9 in	18.8 in	14.9 in	18.8 in	Not informed
Highest gear	86.7 in	85.1 in	85.1 in	85.1 in	Not informed
Brakes
Brake type	Mechanical disc	Hydraulic disc	Mechanical disc	Mechanical disc	Mechanical disc
Other specifications
Suspension	Rigid	Hardtail	Rigid	Rigid	Rigid
Tire width	4″	4.5″	4.5″	4.9″	4″
Wheel size	26″	26″	26″	26″	20″
Fork spring	Not informed	Air	Not informed	Not informed	Not informed