2021 Mason Cycles InSearchOf 27.5 x 2.8"
- Category
- Off-road Touring
- Design
- Drop Bar, Rigid, suspension corrected
- Frame
- Steel
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
42CM | 46CM | 50CM | 54CM | 58CM | |
Stack | 606mm | 614.4mm | 623.8mm | 633.1mm | 654.5mm |
Reach | 366.6mm | 375.7mm | 379.4mm | 384mm | 397.4mm |
Stack to Reach Ratio | 1.65:1 | 1.64:1 | 1.64:1 | 1.65:1 | 1.65:1 |
Seat Tube Length, C-T | 420mm | 460mm | 500mm | 540mm | 580mm |
Seat Tube Length, C-C | 380mm | 415mm | 445mm | 490mm | 530mm |
Top Tube Length, Effective/Horizontal Center | 542.7mm | 554.1mm | 560.5mm | 567.6mm | 587mm |
Top Tube Length, Actual C-C | 527.3mm | 534.7mm | 539mm | 545.7mm | 565.2mm |
Top Tube Slope | 24.4deg | 21deg | 17.6deg | 15deg | 12.7deg |
Head Tube Angle | 69deg | 69deg | 69deg | 69deg | 70deg |
Seat Tube Angle | 74deg | 74deg | 74deg | 74deg | 74deg |
Head Tube Length | 100mm | 110mm | 120mm | 130mm | 150mm |
Bottom Bracket Drop | 76mm | 75mm | 75mm | 75mm | 73mm |
Bottom Bracket Height | 287.1mm | 288.1mm | 288.1mm | 288.1mm | 290.1mm |
Chainstay Length | 445mm | 445mm | 445mm | 445mm | 445mm |
Chainstay Length Horizontal | 438.5mm | 438.6mm | 438.6mm | 438.6mm | 439mm |
Front-Center | 628.3mm | 640.7mm | 648mm | 656mm | 666.3mm |
Front-Center Horizontal | 623.6mm | 636.4mm | 643.7mm | 651.6mm | 662.3mm |
Wheelbase | 1062.1mm | 1075mm | 1082.3mm | 1090.2mm | 1101.3mm |
Fork Offset/Rake | 50mm | 50mm | 50mm | 50mm | 50mm |
Fork Length (On-Axis) | 483mm | 483mm | 483mm | 483mm | 483mm |
Trail | 85.8mm very high | 85.8mm very high | 85.8mm very high | 85.8mm very high | 79mm high |
Mechanical Trail | 80.1mm | 80.1mm | 80.1mm | 80.1mm | 74.2mm |
Wheel Flop | 28.7mm | 28.7mm | 28.7mm | 28.7mm | 25.4mm |
Standover Height | 760mm | 785mm | 810mm | 845mm | 885mm |
Tire to Pedal Spindle | 95.2mm 170 mm cranks | 107.6mm 170 mm cranks | 114.9mm 170 mm cranks | 122.9mm 170 mm cranks | 128.2mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 117.1mm 170 mm cranks | 118.1mm 170 mm cranks | 118.1mm 170 mm cranks | 118.1mm 170 mm cranks | 115.1mm 175 mm cranks |
27.5 x 2.8" Build
42CM | 46CM | 50CM | 54CM | 58CM | |
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 |
Tire Width | 2.8in | 2.8in | 2.8in | 2.8in | 2.8in |
Tire Width Max | 3in | 3in | 3in | 3in | 3in |
Tire Outer Diameter | 726.2mm | 726.2mm | 726.2mm | 726.2mm | 726.2mm |
Bike Length with Tires | 1788.3mm | 1801.2mm | 1808.5mm | 1816.4mm | 1827.5mm |
Crank Length | 170mm | 170mm | 170mm | 170mm | 175mm |
Handlebar Width | 420mm | 440mm | 460mm | 460mm | 480mm |
Stem Length | 70mm | 70mm | 80mm | 90mm | 100mm |
Published Sizing Recommendations
Height | 151 cm to 163 cm | 162 cm to 174 cm | 170 cm to 183 cm | 180 cm to 190 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
Off-road TouringSource:https://masoncycles.cc/products/insearchof-frameset