2022 Mason Cycles Exposure Base
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Carbon/Composite
- Features
- Disc brake
Average stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category |
Geometry
48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | |
Stack | 536.1mm | 550.2mm | 566.2mm | 578.3mm | 589.8mm | 604mm | 627.7mm | 644mm |
Reach | 359.9mm | 360mm | 370.6mm | 375mm | 379.9mm | 392.9mm | 395.9mm | 403.6mm |
Stack to Reach Ratio | 1.49:1 | 1.53:1 | 1.53:1 | 1.54:1 | 1.55:1 | 1.54:1 | 1.59:1 | 1.6:1 |
Seat Tube Length, C-T | 480mm | 500mm | 520mm | 540mm | 560mm | 580mm | 600mm | 620mm |
Top Tube Length, Effective/Horizontal HT Top | 515.9mm | 520mm | 535mm | 553.3mm | 561.5mm | 584.3mm | 594.8mm | 607.3mm |
Top Tube Slope | 8.6deg | 8deg | 7.4deg | 6.6deg | 5.7deg | 5.1deg | 5.5deg | 5.1deg |
Head Tube Angle | 69.5deg | 69.5deg | 70deg | 70deg | 70.5deg | 71deg | 71deg | 71.5deg |
Seat Tube Angle | 74deg | 74deg | 74deg | 73deg | 73deg | 72.5deg | 72.5deg | 72.5deg |
Head Tube Length | 114mm | 129mm | 144mm | 159mm | 169mm | 184mm | 209mm | 224mm |
Bottom Bracket Drop | 77mm | 77mm | 77mm | 75mm | 75mm | 73mm | 73mm | 73mm |
Bottom Bracket Height | 270mm | 270mm | 270mm | 272mm | 272mm | 274mm | 274mm | 274mm |
Chainstay Length | 435mm | 435mm | 435mm | 435mm | 435mm | 435mm | 435mm | 435mm |
Chainstay Length Horizontal | 428.1mm | 428.1mm | 428.1mm | 428.5mm | 428.5mm | 428.8mm | 428.8mm | 428.8mm |
Front-Center | 590mm | 595.3mm | 606.8mm | 616mm | 619.5mm | 632.9mm | 643.9mm | 651.5mm |
Front-Center Horizontal | 584.9mm | 590.3mm | 601.9mm | 611.4mm | 614.7mm | 628.7mm | 639.7mm | 647.4mm |
Wheelbase | 1013mm | 1018.4mm | 1030mm | 1039.9mm | 1043.2mm | 1057.5mm | 1068.5mm | 1076.2mm |
Fork Offset/Rake | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm |
Fork Length (Axle-To-Crown) | 398mm | 398mm | 398mm | 398mm | 398mm | 398mm | 398mm | 398mm |
Trail | 76.4mm high | 76.4mm high | 73.1mm high | 73.1mm high | 69.8mm high | 66.6mm high | 66.6mm high | 63.4mm mid/​neutral |
Mechanical Trail | 71.5mm | 71.5mm | 68.7mm | 68.7mm | 65.8mm | 63mm | 63mm | 60.1mm |
Wheel Flop | 25.1mm | 25.1mm | 23.5mm | 23.5mm | 22mm | 20.5mm | 20.5mm | 19.1mm |
Standover Height | 741mm | 765.5mm | 783.1mm | 799.8mm | 815.2mm | 830.9mm | 849.9mm | 872.4mm |
Tire to Pedal Spindle | 73mm 170 mm cranks | 78.3mm 170 mm cranks | 89.8mm 170 mm cranks | 99mm 170 mm cranks | 102.5mm 170 mm cranks | 115.9mm 170 mm cranks | 126.9mm 170 mm cranks | 134.5mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 100mm 170 mm cranks | 100mm 170 mm cranks | 100mm 170 mm cranks | 102mm 170 mm cranks | 102mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks |
Base Build
48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | |
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 | 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 | 55mm | 55mm | 55mm | 55mm | 55mm | 55mm | 55mm | 55mm |
Tire Outer Diameter | 694mm | 694mm | 694mm | 694mm | 694mm | 694mm | 694mm | 694mm |
Bike Length with Tires | 1707mm | 1712.4mm | 1724mm | 1733.9mm | 1737.2mm | 1751.5mm | 1762.5mm | 1770.2mm |
Published Sizing Recommendations
Height | 151 cm to 160 cm | 157 cm to 168 cm | 163 cm to 172 cm | 170 cm to 180 cm | 175 cm to 185 cm | 180 cm to 188 cm | 185 cm to 193 cm | 188 cm to 198 cm |
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
All-road/GravelSource:Mason Cycles