2021 Diamondback Bicycles Mason 2 Base
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Suspension
- 120mm fork travel
- Features
- Disc brake
Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
SM | MD | LG | XL | |
Stack | 590mm | 590mm | 604mm | 617mm |
Reach | 421mm | 435mm | 451mm | 463mm |
Stack to Reach Ratio | 1.4:1 | 1.36:1 | 1.34:1 | 1.33:1 |
Seat Tube Length, C-T | 420mm | 460mm | 510mm | 560mm |
Top Tube Length, Effective/Horizontal Center | 590mm | 605mm | 625mm | 640mm |
Top Tube Slope | 19.1deg | 14.7deg | 10.9deg | 7.3deg |
Head Tube Angle | 68deg | 68deg | 68deg | 68deg |
Seat Tube Angle | 74deg | 74deg | 74deg | 74deg |
Head Tube Length | 110mm | 110mm | 125mm | 140mm |
Bottom Bracket Drop | 55mm | 55mm | 55mm | 55mm |
Bottom Bracket Height | 308.1mm | 308.1mm | 308.1mm | 308.1mm |
Chainstay Length | 435mm | 435mm | 435mm | 435mm |
Chainstay Length Horizontal | 431.5mm | 431.5mm | 431.5mm | 431.5mm |
Front-Center | 683.7mm | 698.7mm | 720.6mm | 737.5mm |
Front-Center Horizontal | 681.5mm | 696.5mm | 718.5mm | 735.5mm |
Wheelbase | 1113mm | 1128mm | 1150mm | 1167mm |
Fork Offset/Rake | 51mm | 51mm | 51mm | 51mm |
Trail | 91.7mm very high | 91.7mm very high | 91.7mm very high | 91.7mm very high |
Mechanical Trail | 85mm | 85mm | 85mm | 85mm |
Wheel Flop | 31.9mm | 31.9mm | 31.9mm | 31.9mm |
Standover Height | 727mm | 752mm | 788mm | 823mm |
Tire to Pedal Spindle | 150.6mm 170 mm cranks | 160.5mm 175 mm cranks | 182.5mm 175 mm cranks | 199.4mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 138.1mm 170 mm cranks | 133.1mm 175 mm cranks | 133.1mm 175 mm cranks | 133.1mm 175 mm cranks |
Base Build
SM | MD | LG | XL | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 2.8in | 2.8in | 2.8in | 2.8in |
Tire Outer Diameter | 726.2mm | 726.2mm | 726.2mm | 726.2mm |
Bike Length with Tires | 1839.2mm | 1854.2mm | 1876.2mm | 1893.2mm |
Crank Length | 170mm | 175mm | 175mm | 175mm |
Handlebar Width | 760mm | 760mm | 760mm | 760mm |
Stem Length | 60mm | 60mm | 60mm | 60mm |
Published Sizing Recommendations
Height | 5 ft 4 in to 5 ft 7 in | 5 ft 7 in to 5 ft 10 in | 5 ft 10 in to 6 ft 1 in | 6 ft 1 in to 6 ft 4 in |
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.diamondback.com/mason-2-d42