2026 Megamo Reason Air
- Category
- Full-suspension Trail MTB
- Design
- Flat Bar, Full suspension
- Suspension
- 140mm fork travel, 140mm rear travel
- Features
- E-bike
Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
S (LOW) | S (HIGH) | M (LOW) | M (HIGH) | L (LOW) | L (HIGH) | |
Stack | 610mm | 608mm | 628mm | 626mm | 646mm | 644mm |
Reach | 451mm | 453mm | 479mm | 481mm | 509mm | 511mm |
Stack to Reach Ratio | 1.35:1 | 1.34:1 | 1.31:1 | 1.3:1 | 1.27:1 | 1.26:1 |
Seat Tube Length, Unknown | 400mm | 400mm | 420mm | 420mm | 455mm | 455mm |
Top Tube Length, Effective/Horizontal Center | 582mm | 581mm | 615mm | 614mm | 649mm | 648mm |
Top Tube Slope | 22.2deg | 22deg | 21deg | 20.7deg | 18.4deg | 18.2deg |
Head Tube Angle | 64.3deg | 64.5deg | 64.3deg | 64.5deg | 64.3deg | 64.5deg |
Seat Tube Angle | 77.8deg | 78deg | 77.8deg | 78deg | 77.8deg | 78deg |
Head Tube Length | 100mm | 100mm | 100mm | 120mm | 100mm | 140mm |
Bottom Bracket Drop | 36mm | 33mm | 36mm | 33mm | 36mm | 33mm |
Bottom Bracket Height | 336mm | 339mm | 336mm | 339mm | 277.4mm | 339mm |
Chainstay Length Horizontal | 450mm | 449mm | 454mm | 453mm | 458mm | 457mm |
Front-Center | 774.8mm | 774.7mm | 811.8mm | 811.7mm | 850.8mm | 850.6mm |
Front-Center Horizontal | 774mm | 774mm | 811mm | 811mm | 850mm | 850mm |
Wheelbase | 1224mm | 1223mm | 1265mm | 1264mm | 1308mm | 1307mm |
Fork Offset/Rake | 42.1mm | 42.2mm | 42.4mm | 42.6mm | 42.7mm | 42.9mm |
Trail | 132.3mm very high | 130.7mm very high | 131.9mm very high | 130.3mm very high | 103.4mm very high | 129.9mm very high |
Mechanical Trail | 119.2mm | 118mm | 118.9mm | 117.6mm | 93.2mm | 117.2mm |
Wheel Flop | 51.7mm | 50.8mm | 51.6mm | 50.6mm | 40.4mm | 50.5mm |
Tire to Pedal Spindle | 232.9mm 170 mm cranks | 232.7mm 170 mm cranks | 269.8mm 170 mm cranks | 269.7mm 170 mm cranks | 367.4mm 170 mm cranks | 308.7mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 166mm 170 mm cranks | 169mm 170 mm cranks | 166mm 170 mm cranks | 169mm 170 mm cranks | 107.4mm 170 mm cranks | 169mm 170 mm cranks |
Air Build
S (LOW) | S (HIGH) | M (LOW) | M (HIGH) | L (LOW) | L (HIGH) | |
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 |
Tire Width | 2.4in | 2.4in | 2.4in | 2.4in | 2.4mm | 2.4in |
Tire Outer Diameter | 743.9mm | 743.9mm | 743.9mm | 743.9mm | 626.8mm | 743.9mm |
Bike Length with Tires | 1967.9mm | 1966.9mm | 2008.9mm | 2007.9mm | 1934.8mm | 2050.9mm |
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
Full-suspension Trail MTBSource:https://www.megamo.com/en/e-bike/e-full-suspension/reason