2022 Mason Cycles Exposure Base 52
Build
650B/27.5 in × 55 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Mason Cycles Exposure
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 566.2mm |
| Reach | 370.6mm |
| Stack to Reach Ratio | 1.53:1 |
| Seat Tube Length, C-T | 520mm |
| Top Tube Length, Effective/Horizontal HT Top | 535mm |
| Top Tube Slope | 7.4deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 144mm |
| Bottom Bracket Drop | 77mm |
| Bottom Bracket Height | 270mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 428.1mm |
| Front-Center | 606.8mm |
| Front-Center Horizontal | 601.9mm |
| Wheelbase | 1030mm |
| Fork Offset/Rake | 50mm |
| Fork Length (Axle-To-Crown) | 398mm |
| Trail | 73.1mm high |
| Mechanical Trail | 68.7mm |
| Wheel Flop | 23.5mm |
| Standover Height | 783.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 89.8mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 100mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 55mm |
| Tire Outer Diameter | 694mm |
| Bike Length with Tires | 1724mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 163 cm to 172 cm |
Source:Mason Cycles