2019 Bird Bikes Zero29 130mm
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Features
- Disc brake
Very upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
M | ML | L | XL | |
Stack | 652mm | 661mm | 661mm | 670mm |
Reach | 436mm | 460mm | 482mm | 507mm |
Stack to Reach Ratio | 1.5:1 | 1.44:1 | 1.37:1 | 1.32:1 |
Seat Tube Length, C-T | 410mm | 440mm | 470mm | 500mm |
Top Tube Length, Effective/Horizontal HT Top | 605mm | 630mm | 655mm | 680mm |
Top Tube Slope | 25.2deg | 22.3deg | 18.9deg | 16.4deg |
Head Tube Angle | 64.3deg | 64.3deg | 64.3deg | 64.3deg |
Seat Tube Angle | 74deg | 74deg | 74deg | 74deg |
Head Tube Length | 110mm | 120mm | 120mm | 130mm |
Bottom Bracket Drop | 80mm | 80mm | 80mm | 80mm |
Bottom Bracket Height | 297mm | 297mm | 297mm | 297mm |
Chainstay Length | 435mm | 435mm | 440mm | 440mm |
Chainstay Length Horizontal | 427.6mm | 427.6mm | 432.7mm | 432.7mm |
Front-Center | 762.6mm | 770.6mm | 795.4mm | 822.2mm |
Front-Center Horizontal | 758.4mm | 766.4mm | 791.3mm | 818.3mm |
Wheelbase | 1186mm | 1194mm | 1224mm | 1251mm |
Fork Offset/Rake | 42mm | 42mm | 42mm | 42mm |
Fork Length (Axle-To-Crown) | 541mm | 541mm | 541mm | 541mm |
Trail | 134.9mm very high | 134.9mm very high | 134.9mm very high | 134.9mm very high |
Mechanical Trail | 121.5mm | 121.5mm | 121.5mm | 121.5mm |
Wheel Flop | 52.7mm | 52.7mm | 52.7mm | 52.7mm |
Tire to Pedal Spindle | 215.6mm 170 mm cranks | 223.5mm 170 mm cranks | 248.3mm 170 mm cranks | 275.2mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 127mm 170 mm cranks | 127mm 170 mm cranks | 127mm 170 mm cranks | 127mm 170 mm cranks |
130mm Build
M | ML | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.6in | 2.6in | 2.6in | 2.6in |
Tire Width Max | 2.6in | 2.6in | 2.6in | 2.6in |
Tire Outer Diameter | 754.1mm | 754.1mm | 754.1mm | 754.1mm |
Bike Length with Tires | 1940.1mm | 1948.1mm | 1978.1mm | 2005.1mm |
Crank Length | 170mm | 170mm | 170mm | 170mm |
Handlebar Width | 760mm | 760mm | 760mm | 760mm |
Stem Length | 40mm | 40mm | 40mm | 40mm |
Published Sizing Recommendations
Height | 161 cm to 174 cm | 170 cm to 180 cm | 178 cm to 193 cm | 188 cm to |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Hardtail Trail MTBSource:https://www.bird.bike/wp-content/uploads/2018/11/Zero-29-2019-Technical-Data-Sheet.svg