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Bird Aeris 145 Frame

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Product Bird Aeris 145 Frame
Riding Type Trail, Enduro / All-Mountain
Rider Unisex
Sizes and Geometry
SM (150mm fork, 160mm fork), MD (150mm fork, 160mm fork), ML (150mm fork, 160mm fork), LG (150mm fork, 160mm fork), XL (150mm fork, 160mm fork) View Geometry
Size SM (150mm fork, 160mm fork) MD (150mm fork, 160mm fork) ML (150mm fork, 160mm fork) LG (150mm fork, 160mm fork) XL (150mm fork, 160mm fork)
Top Tube Length 580mm 605mm 630mm 655mm 680mm
Head Tube Angle 65.5°, 65.1° 65.5°, 65.1° 65.5°, 65.1° 65.5°, 65.1° 65.5°, 65.1°
Head Tube Length 110mm 110mm 120mm 120mm 130mm
Seat Tube Angle 76.0°, 75.6° 76.0°, 75.6° 76.0°, 75.6° 76.0°, 75.6° 76.0°, 75.6°
Seat Tube Length 380mm 410mm 440mm 470mm 500mm
Bottom Bracket Height 340mm (10mm drop), 343mm (7mm drop) 340mm (10mm drop), 343mm (7mm drop) 340mm (10mm drop), 343mm (7mm drop) 340mm (10mm drop), 343mm (7mm drop) 340mm (10mm drop), 343mm (7mm drop)
Chainstay Length 435mm 435mm 435mm 435mm 435mm
Wheelbase 1178mm 1203mm 1230mm 1255mm 1282mm
Standover 699mm 699mm 700mm 700mm 704mm
Reach 433mm 458mm 481mm 506mm 528mm
Stack 589mm 589mm 599mm 599mm 608mm
* Additional Info Head Tube Angle and Bottom Bracket Height given for static (non-sagged) position.
Wheel Size 27.5" (650b)
Frame Material Aluminum
Frame Material Details 6066-T6 alloy tubeset
Rear Travel 145mm
Rear Shock 230mm x 65mm
RockShox options: Deluxe Select+ RT, Deluxe Ultimate RCT, Super Deluxe Ultimate RCT, Super Deluxe Coil Ultimate RCT
Head Tube Diameter Tapered, 1.125" top, 1.5" bottom
Bottom Bracket 73mm threaded
Rear Dropout / Hub Dimensions 148x12mm Boost
Front Derailleur Size N/A (1x-specific)
Seatpost Diameter 31.6mm
Max Tire Size 27.5" x 2.6"
Bottle Cage Mounts Yes (single)
Colors Tangerine Orange, Lime Green, Anodized Black
Warranty Lifetime frame, 2 years paint and Bird components
Miscellaneous 2019-2020 version
UK price: 1100 GBP, without shock
Multiple customizations options available at Bird website for rear axle, shock, fork, seatpost clamp, headset, and wheels
External cable routing with internal dropper seatpost routing
160mm post-mount rear brake tabs
Designed for 140-160mm travel forks
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