Bird Zero AM MK3 (Boost) 2018


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Geometry

  S M ML L XL
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Reach 459 418 388 459 537
Stack 617 736 719 640 685
Top Tube (effective) 664 533 703 650 763
Seat Tube C-T 323 376 385 455 520
Head Angle 64.5° 64.5° 64.5° 64.5° 64.5°
Seat Angle 74° 74° 74° 74° 74°
Head Tube 122 97 103 102 148
Chainstay 411 400 376 390 430
Wheelbase 943 1287 1340 1045 1147
BB Drop 39 48 52 49 46
BB Height 284 252 351 333 359
BB Type 73 BSA Threaded 73 BSA Threaded 73 BSA Threaded 73 BSA Threaded 73 BSA Threaded
Fork Length (A2C) 559 581 450 525 450
Seatpost Diameter 36 31 30 35 31
Axle Spacing Boost 148x12 Boost 148x12 Boost 148x12 Boost 148x12 Boost 148x12
Wheel Size 32 22 31 22 28
Tyre Max Width 27.5" x 2.8" 27.5" x 2.8" 27.5" x 2.8" 27.5" x 2.8" 27.5" x 2.8"
Stem Length 41 47 43 41 36
Front Travel 150/160 150/160 150/160 150/160 150/160
Rear Travel Hardtail Hardtail Hardtail Hardtail Hardtail
Rider Height 0-165 161-174 170-180 178-193 188+
Headset ZS44/ZS56 ZS44/ZS56 ZS44/ZS56 ZS44/ZS56 ZS44/ZS56
Seat Clamp 33 39 28 29 36
Frame Weight 1
Data Source Manufacturer Manufacturer Manufacturer Manufacturer Manufacturer

Note: Static (not sagged) geometry with 150mm fork. 160 fork also available.

Measurements are in millimeters and degrees.

Image showing geometry measurements

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