2024 Bird Bikes Aeris AM Base 29" R4 [Large]

Build

700C/29 in × 2.5 in

Insights

Average stack and reach vs trend of hardtail all-mountain/enduro mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Stack and Reach vs. Category Trend
View all sizes

Reach250mm300mm350mm400mm450mm500mm550mmStack350mm400mm450mm500mm550mm600mm650mmR1 [Small]R2 [Medium]R3 [ML]RS (XL)R4 [Large]

Geometry

Stack
636mm
Reach
500mm
Stack to Reach Ratio
1.27:1
Seat Tube Length, C-T
445mm
Top Tube Length, Effective/Horizontal Unknown
635mm
Top Tube Slope
18.7deg
Head Tube Angle
64deg
Seat Tube Angle
78deg
Head Tube Length
120mm
Bottom Bracket Drop
30mm
Bottom Bracket Height
344.5mm
Chainstay Length
440mm
Chainstay Length Horizontal
439mm
Front-Center
842mm
Front-Center Horizontal
842mm
Wheelbase
1281mm
Fork Offset/Rake
41.8mm
Fork Length (Axle-To-Crown)
571mm
Trail
136.2mm
very high
Mechanical Trail
122.4mm
Wheel Flop
53.7mm
Tire to Pedal Spindle Distance
With 170 mm cranks
297.5mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
174.5mm

Base 29" Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
2.5in
Tire Outer Diameter
749mm
Bike Length with Tires
2030mm
Suspension Type
Full suspension
Bar Type
Flat Bar
Fork Travel
160mm
Rear Travel
160mm
Suspension Sag
Unknown
Frame Material
Carbon/Composite
Fork Material
Unknown
Brake Type
Disc
Source:https://www.bird.bike/aeris-am/