Bird Zero AM MK3 (Boost) 2018

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Geometry

  S M ML L XL
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Reach 363 485 421 509 427
Stack 495 492 626 575 685
Top Tube (effective) 591 607 669 621 754
Seat Tube C-T 430 471 399 511 576
Head Angle 64.5° 64.5° 64.5° 64.5° 64.5°
Seat Angle 74° 74° 74° 74° 74°
Head Tube 128 105 96 99 155
Chainstay 412 425 464 380 358
Wheelbase 990 1334 1122 1023 1149
BB Drop 40 51 37 41 51
BB Height 244 272 279 312 359
BB Type 73 BSA Threaded 73 BSA Threaded 73 BSA Threaded 73 BSA Threaded 73 BSA Threaded
Fork Length (A2C) 516 649 514 607 465
Seatpost Diameter 29 26 26 26 32
Axle Spacing Boost 148x12 Boost 148x12 Boost 148x12 Boost 148x12 Boost 148x12
Wheel Size 25 23 24 31 29
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 36 32 44 33 45
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 35 41 34 41 34
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.

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