2026 Mason Cycles Definition Integrale Base
- Category
- Endurance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Disc brake
Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category |
Geometry
48CM | 50CM | 52CM | 54CM | 56CM | 58CM | 60CM | 62CM | |
Stack | 520mm | 531mm | 540.5mm | 553mm | 567.5mm | 579mm | 587mm | 607.5mm |
Reach | 375mm | 385mm | 386.5mm | 387mm | 392.5mm | 398.5mm | 401mm | 409.5mm |
Stack to Reach Ratio | 1.39:1 | 1.38:1 | 1.4:1 | 1.43:1 | 1.45:1 | 1.45:1 | 1.46:1 | 1.48:1 |
Seat Tube Length, C-T | 480mm | 500mm | 520mm | 540mm | 560mm | 580mm | 600mm | 620mm |
Seat Tube Length, C-C | 433mm | 453mm | 474mm | 494mm | 514mm | 534mm | 555mm | 575mm |
Top Tube Length, Effective/Horizontal Center | 521mm | 534mm | 538.5mm | 552mm | 562mm | 581.5mm | 586mm | 601mm |
Top Tube Slope | 6.5deg | 5.4deg | 4.3deg | 3.7deg | 3.2deg | 2.6deg | 1.5deg | 1.6deg |
Head Tube Angle | 71deg | 71.5deg | 71.5deg | 71.5deg | 71.5deg | 72deg | 72deg | 72.5deg |
Seat Tube Angle | 74.5deg | 74.5deg | 74.5deg | 73.5deg | 73.5deg | 72.5deg | 72.5deg | 72.5deg |
Head Tube Length | 120mm | 130mm | 140mm | 155mm | 170mm | 180mm | 190mm | 210mm |
Bottom Bracket Drop | 73mm | 73mm | 73mm | 71.5mm | 71.5mm | 71.5mm | 70mm | 70mm |
Bottom Bracket Height | 268mm | 268mm | 268mm | 269.5mm | 269.5mm | 269.5mm | 271mm | 271mm |
Chainstay Length | 415mm | 415mm | 415mm | 420mm | 420mm | 420mm | 420mm | 420mm |
Chainstay Length Horizontal | 408.5mm | 408.5mm | 408.5mm | 413.9mm | 413.9mm | 413.9mm | 414.1mm | 414.1mm |
Front-Center | 581mm | 590mm | 595mm | 600mm | 610mm | 615mm | 620mm | 630mm |
Front-Center Horizontal | 576.5mm | 585.5mm | 590.5mm | 595.6mm | 605.6mm | 610.6mm | 615.9mm | 625.9mm |
Wheelbase | 985mm | 994mm | 999mm | 1009.5mm | 1019.5mm | 1024.5mm | 1030mm | 1040mm |
Fork Offset/Rake | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm |
Trail | 69.8mm high | 66.6mm high | 66.6mm high | 66.6mm high | 66.6mm high | 63.5mm mid/​neutral | 63.5mm mid/​neutral | 60.3mm mid/​neutral |
Mechanical Trail | 66mm | 63.2mm | 63.2mm | 63.2mm | 63.2mm | 60.4mm | 60.4mm | 57.5mm |
Wheel Flop | 21.5mm | 20.1mm | 20.1mm | 20.1mm | 20.1mm | 18.7mm | 18.7mm | 17.3mm |
Standover Height | 723mm | 742mm | 758mm | 778mm | 794mm | 808mm | 823mm | 846mm |
Tire to Pedal Spindle | 75mm 165 mm cranks | 79mm 170 mm cranks | 84mm 170 mm cranks | 89mm 170 mm cranks | 96.5mm 172.5 mm cranks | 101.5mm 172.5 mm cranks | 106.5mm 172.5 mm cranks | 114mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 103mm 165 mm cranks | 98mm 170 mm cranks | 98mm 170 mm cranks | 99.5mm 170 mm cranks | 97mm 172.5 mm cranks | 97mm 172.5 mm cranks | 98.5mm 172.5 mm cranks | 96mm 175 mm cranks |
Base Build
48CM | 50CM | 52CM | 54CM | 56CM | 58CM | 60CM | 62CM | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm |
Tire Width Max | 35mm | 35mm | 35mm | 35mm | 35mm | 35mm | 35mm | 35mm |
Tire Outer Diameter | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm |
Bike Length with Tires | 1667mm | 1676mm | 1681mm | 1691.5mm | 1701.5mm | 1706.5mm | 1712mm | 1722mm |
Crank Length | 165mm | 170mm | 170mm | 170mm | 172.5mm | 172.5mm | 172.5mm | 175mm |
Handlebar Width | 400420mm | 400420mm | 420mm | 440mm | 440mm | 460mm | 460mm | 460mm |
Stem Length | 8090mm | 90mm | 100mm | 110mm | 110mm | 120mm | 120mm | 120mm |
Published Sizing Recommendations
Height | — | 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 | — |
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
Endurance RoadSource:https://masoncycles.cc/products/definition-integrale-frameset-2025