2021 Diamondback Bicycles Mason 2 Base MD
Build
650B/27.5 in × 2.8 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail trail mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 590mm |
| Reach | 435mm |
| Stack to Reach Ratio | 1.36:1 |
| Seat Tube Length, C-T | 460mm |
| Top Tube Length, Effective/Horizontal Center | 605mm |
| Top Tube Slope | 14.7deg |
| Head Tube Angle | 68deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 55mm |
| Bottom Bracket Height | 308.1mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 431.5mm |
| Front-Center | 698.7mm |
| Front-Center Horizontal | 696.5mm |
| Wheelbase | 1128mm |
| Fork Offset/Rake | 51mm |
| Trail | 91.7mm very high |
| Mechanical Trail | 85mm |
| Wheel Flop | 31.9mm |
| Standover Height | 752mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 160.5mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 133.1mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.8in |
| Tire Outer Diameter | 726.2mm |
| Bike Length with Tires | 1854.2mm |
| Crank Length | 175mm |
| Handlebar Width | 760mm |
| Stem Length | 60mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | N/A |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 7 in to 5 ft 10 in |
Source:https://www.diamondback.com/mason-2-d42