2021 Norco Bicycles Sight A3 29
- Design
- Flat Bar, Full suspension
- Frame
- Aluminum
- Suspension
- 160mm fork travel, 20% sag
- Features
- Disc brake
Geometry
S | M | L | XL | |
Stack | 612mm | 612mm | 621mm | 630mm |
Reach | 425mm | 455mm | 485mm | 515mm |
Stack to Reach Ratio | 1.44:1 | 1.35:1 | 1.28:1 | 1.22:1 |
Seat Tube Length, C-T | 370mm | 395mm | 435mm | 465mm |
Top Tube Length, Effective/Horizontal HT Top | 566mm | 593mm | 621mm | 649mm |
Head Tube Angle | 64deg | 64deg | 64deg | 64deg |
Effective Seat Tube Angle, Unknown | 77deg | 77.3deg | 77.7deg | 78deg |
Head Tube Length | 100mm | 100mm | 110mm | 120mm |
Bottom Bracket Drop | 25mm | 25mm | 25mm | 25mm |
Bottom Bracket Height | 347mm | 347mm | 347mm | 347mm |
Chainstay Length | 430mm | 435mm | 440mm | 445mm |
Chainstay Length Horizontal | 429.3mm | 434.3mm | 439.3mm | 444.3mm |
Front-Center | 758.1mm | 788.1mm | 823.1mm | 857.1mm |
Front-Center Horizontal | 757.7mm | 787.7mm | 822.7mm | 856.7mm |
Wheelbase | 1187mm | 1222mm | 1262mm | 1301mm |
Fork Offset/Rake | 37mm | 37mm | 37mm | 37mm |
Fork Length (Axle-To-Crown) | 571mm | 571mm | 571mm | 571mm |
Trail | 140.3mm very high | 140.3mm very high | 140.3mm very high | 140.3mm very high |
Mechanical Trail | 126.1mm | 126.1mm | 126.1mm | 126.1mm |
Wheel Flop | 55.3mm | 55.3mm | 55.3mm | 55.3mm |
Standover Height | 678mm | 690mm | 698mm | 712mm |
Tire to Pedal Spindle | 216.2mm 170 mm cranks | 246.2mm 170 mm cranks | 281.1mm 170 mm cranks | 315.1mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 177mm 170 mm cranks | 177mm 170 mm cranks | 177mm 170 mm cranks | 177mm 170 mm cranks |
A3 29 Build
S | M | 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 | 2.4in | 2.4in | 2.4in | 2.4in |
Tire Width Max | 2.6in | 2.6in | 2.6in | 2.6in |
Tire Outer Diameter | 743.9mm | 743.9mm | 743.9mm | 743.9mm |
Bike Length with Tires | 1930.9mm | 1965.9mm | 2005.9mm | 2044.9mm |
Crank Length | 170mm | 170mm | 170mm | 170mm |
Stem Length | 40mm | 40mm | 40mm | 40mm |
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
Full-suspension All-mountain/Enduro MTBSource:https://www.norco.com/bikes/2021/mountain/all-mountain/sight/sight-a3/