Bird Zero 29 SRAM Eagle

Name: Bird Zero 29 SRAM Eagle
Brand: Bird

2020 MountainTrail Manufacturer page

Fork travel: 130 mm
Wheels: 29″
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

MD
MD/LG
LG
XL

The manufacturer did not publish rider heights for these sizes.

Components

19 of 21 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

Aluminum Not identified

Suspension

2 parts

Drivetrain

8 parts

Bottom bracket
- SRAM DUB BSA
Cassette
- SRAM
Chain
- SRAM
Chain guide

None
Crankset
- Truvativ DESCENDANT Carbon 10 speeds
Front derailleur

None
Rear derailleur
- SRAM
Shifters
- SRAM

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

7 parts

Grips

Gusset S2, lock-on, 32mm diameter Not identified
Handlebar
- Race Face
Headset
- Hope
Pedals

None
Saddle
- Fabric
Seatpost
- RockShox Reverb
Stem
- Race Face

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/LG

Table

Reach 460mm

Stack 661mm

Wheelbase 1194mm

Head angle 64.3°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ 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
Reachmm	436	460	482	507
Stackmm	652	661	661	670
Top tube lengthmm	605	630	655	680
Seat tube lengthmm	410	440	470	500
Head tube lengthmm	110	120	120	130
Head tube angle	64.3°	64.3°	64.3°	64.3°
Seat tube angle	74°	74°	74°	74°
Chainstay lengthmm	435	435	440	440
Wheelbasemm	1168	1194	1224	1251
Front centermm	745	771	795	822
Bottom bracket dropmm	80	80	80	80
Bottom bracket heightmm	297	297	297	297
Fork rakemm	26	24	27	25
Trailmm	151	154	150	152
Stack/reach ratio	1.50	1.44	1.37	1.32

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: Aluminum

Suspension

Suspension configuration: Hardtail
Front travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

2 measures

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

Front travel

130 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,348 bicycles with this information
Coverage: 93.8% of the class

Shifting

Mechanical

55 of 1,437 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,437 bicycles with this information
Coverage: 100.0% 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 2020 builds

Differences across 2020 builds
Specification	This bicycle Bird Zero 29 SRAM Eagle	Bird Zero 29 Shimano 12-speed	Bird Zero AM Shimano 12-speed	Bird Zero AM SRAM Eagle
Suspension
Front travel	130 mm	130 mm	150 mm	150 mm
Drivetrain
Smallest chainring	32	Not informed	Not informed	32
Largest chainring	32	Not informed	Not informed	32
Other specifications
Wheel size	29″	29″	27.5″	27.5″