Diamondback el Oso Tres

2020 MountainFat bike Manufacturer page

Last known price: $2,200

Prices shown first for United States
Fork travel: 100 mm
Wheels: 26″
Drivetrain: 1 × 11 28t / 11–46t
Gear range: 418%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–170
MD 168–179
LG 176–187

Components

13 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

El Oso 6061-T6 Double Butted Aluminum, Formed Top and Down Tube, 1.5" Tapered Machined Headtube, 197mm Thru Axle, Fits up to 26x5" Tire Not identified

Suspension

1 part

Fork
- Manitou

Drivetrain

6 parts

Bottom bracket
- Race Face
Cassette
- Shimano Deore XT CS-M8000 11 speeds 11–46t
CS-M8000
Chain
- KMC X11 11 speeds
Crankset
- Race Face 28t
Rear derailleur
- Shimano Deore XT RD-M8000-GS
RD-M8000-GS
Shifters
- Shimano Deore XT SL-M8000
SL-M8000

Brakes

2 parts

Wheels and tires

5 parts

Front hub

Sun Ringle, 32h Alloy, Sealed Cartridge Bearing, 150mmx15mm Thru-axle Not identified
Rear hub

Sun Ringle, 32h Alloy, Sealed Cartridge Bearing, 197mmx12mm Thru-axle, Cassette Not identified
Rims

Sun Ringle Mulefüt SL 80mm Not identified
Spokes

14g Stainless Steel Not identified
Tires
- Maxxis Minion

Cockpit and contact points

7 parts

Grips

DB4L 135mm Lock On Not identified
Handlebar

DB35 Alloy, 760mm Wide, 15mm Rise, 35mm Bar Bore Not identified
Headset
- FSA
Pedals

DB CNC Platform, Sealed Cartidge Bearing w/Replaceable Pins Not identified
Saddle
- WTB Volt
Seatpost
- KS
Stem

DB35 Alloy, 60mm Reach, 35mm Bar Bore Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 436mm

Stack 605mm

Wheelbase 1159mm

Head angle 68.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 26″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	410	436	456
Stackmm	590	605	605
Top tube lengthmm	581	610	630
Seat tube lengthmm	400	450	500
Head tube lengthmm	110	120	120
Head tube angle	68°	68°	68°
Seat tube angle	74°	74°	74°
Chainstay lengthmm	450	450	450
Wheelbasemm	1129	1159	1178
Front centermm	686	716	734
Bottom bracket dropmm	60	60	60
Bottom bracket heightmm	320	320	320
Standover heightmm	730	768	796
Fork rakemm	50	50	50
Trailmm	79	81	82
Stack/reach ratio	1.44	1.39	1.33
Suspension and parts
Crank lengthmm	170	175	175
Handlebar widthmm	750	750	750
Stem lengthmm	60	60	70
Seatpost lengthmm	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

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 46
Lowest gear: 15.8 in
Highest gear: 66.2 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Tire width: 4″
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

15.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Fat bike Model year: 2020
Sample: 74 bicycles with this information
Coverage: 77.8% of the class

Highest gear

66.2 gear inches

This value is below the central range for this class.

Cohort: Mountain / Fat bike Model year: 2020
Sample: 74 bicycles with this information
Coverage: 77.8% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.1 km/h
Highest gear: 25.3 km/h

Total gear range 418%

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: 15.8–66.2 gear inches
Class reference (p10–p90): 15.6–89.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Fat bike Model year: 2020
Lowest gear: 74 bicycles with this information, 77.8% of the class
Highest gear: 74 bicycles with this information, 77.8% 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 Diamondback el Oso Tres	Diamondback el Oso Dos	Diamondback El Oso Niño 20"	Diamondback el Oso Uno
Frame
Frame material	Aluminum	Aluminum	Steel	Steel
Fork material	Not informed	Aluminum	Steel	Steel
Suspension
Suspension configuration	Hardtail	Rigid	Rigid	Rigid
Front travel	100 mm	Not informed	Not informed	Not informed
Drivetrain
Front chainrings	1	2	1	2
Smallest chainring	28	24	40	22
Largest chainring	28	36	40	36
Rear sprockets	11	10	7	9
Smallest sprocket	11	11	14	11
Largest sprocket	46	42	28	36
Lowest gear	15.8 in	14.9 in	28.6 in	15.9 in
Highest gear	66.2 in	85.1 in	57.1 in	85.1 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Mechanical disc	Mechanical disc
Cockpit
Seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost
Other specifications
Suspension	Hardtail	Rigid	Rigid	Rigid
Tire width	4″	4.5″	4″	4″
Wheel size	26″	26″	20″	26″