Zero AM Shimano 12-speed
A 27.5″ aluminum frame hardtail enduro bike with modest components.
Compare the full range
Frame | Aluminum |
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Suspension | Hardtail, 150mm |
Fork | RockShox |
Wheels | 27.5″ Aluminum |
Groupset | Shimano, Race Face |
Brakes | Hydraulic Disc |
Seatpost | Dropper |
For This Bike
5'3" – 5'9"
5'6" – 5'11"
5'8" – 6'2"
5'10" – 6'4"
6'2" – 6'7"
🐐 Estimated
None yet.
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May 2019 · Jonny Ashelford
As fun as a smaller-wheeled bike, but more efficient. Plays rough, but brings the speed
Feb 2018
The Zero AM Boost is Bird’s newest iteration of the successful Zero AM and the brand’s encouragement to outright hooliganism. Stiff as a ramrod and as unforgiving as a religious cult, what it lacks in finesse it makes up for in outright breach of the peace. Progressive geometry will keep you safe all day long, however hard you like to rumble, all for a wallet-friendly sum.
Frame | Aluminum BB Standard: BSA, 73mm, Threaded |
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Fork | RockShox options: 35, Pike Select RC, Pike Ultimate RCT3, Lyrik Select RC, Lyrik Ultimate RC2 Travel: 150mm |
Shock | N/A |
Bottom Bracket | 73mm threaded, Options: Race Face, Shimano |
Headset | ZS44 upper, ZS56 lower, Options: Bird, Hope Tech |
Stem | Race Face options: Aeffect R 35, 40mm length; Turbine R 35, 32mm length |
Handlebar | Race Face options: Atlas 35, Turbine R 35, SixC 35 Carbon, Next R Carbon |
Saddle | Fabric Scoop options: Radius Sport, Radius Elite, Radius Race Ti, Gel Radius |
Seatpost | Options: Race Face Ride rigid, RockShox Reverb Stealth dropper, Bird Down dropper Type: Dropper |
Pedals | N/A |
Grips | Gusset S2, lock-on, 32mm diameter |
Rear Derailleur | Shimano drivetrain options: SLX M7100, Deore XT M8100, XTR M9100 |
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Front Derailleur | N/A |
Crank | Options: Race Face Ride (with SLX drivetrain), Shimano SLX, Race Face Aeffect (with Deore XT drivetrain), Shimano Deore XT, Shimano XTR |
Shifters | Shimano options: Deore XT M8100 (with SLX or XT drivetrain), XTR M9100 |
Cassette | Shimano drivetrain options: SLX M7100, Deore XT M8100, XTR M9100 |
Chain | Shimano drivetrain options: SLX M7100, Deore XT M8100, XTR M9100 |
Chain Guide | N/A |
Brakes | SRAM options: Guide RE, G2 RSC, Code RSC, Shimano options: Deore M6000, M520, SLX M7120, Deore XT M8120, XTR M9120 Type: Hydraulic Disc |
Brake Levers | SRAM options: Guide RE, G2 RSC, Code RSC, Shimano options: Deore M6000, M520, SLX M7120, Deore XT M8120, XTR M9120 |
Rims | DT Swiss options: XM481, EX511, FR560, XM521, M1900 Spline 30 wheelset, E1900 Spline 30 wheelset, XMC 1200 Spline 30 wheelset |
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Spokes | DT Swiss options: Competition, Competition Race, M1900 Spline 30 wheelset, E1900 Spline 30 wheelset, XMC 1200 Spline 30 wheelset |
Front Hub | 110x15mm Boost front, 148x12mm Boost rear, Options: Hope Tech Pro 4, DT Swiss M1900 Spline 30 wheelset, DT Swiss E1900 Spline 30 wheelset, DT Swiss XMC 1200 Spline 30 wheelset |
Rear Hub | 110x15mm Boost front, 148x12mm Boost rear, Options: Hope Tech Pro 4, DT Swiss M1900 Spline 30 wheelset, DT Swiss E1900 Spline 30 wheelset, DT Swiss XMC 1200 Spline 30 wheelset |
Tires | Maxxis options: Minion DHF, Ardent, High Roller II, Shorty, Assegai, Rekon, Aggressor |
Last updated May 14