2019 Merida One-Forty vs 2020 Specialized Stumpjumper ST Alloy 27.5
The M is the Specialized Stumpjumper ST Alloy 27.5 size closest to your M Merida One-Forty. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Specialized Stumpjumper ST Alloy 27.5
Compared with the Merida One-Forty in M, the Specialized Stumpjumper ST Alloy 27.5 in M places the top of the head tube 5 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 9 mm longer, which can contribute to stability at speed.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +9 mm
- Longer: steadier at speed
- Head angle
- −0.8°
- Slacker: calmer steering
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Merida One-Forty, MSpecialized Stumpjumper ST Alloy 27.5, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Merida One-Forty M | Specialized Stumpjumper ST Alloy 27.5 M | Difference |
|---|---|---|---|
| Reach | 435 | 435mm | ±0 mm |
| Stack | 601.1 | 596mm | −5 mm |
| Head tube angle | 66.3 | 65.5° | −0.8° |
| Seat tube angle | 75 | 75° | ±0.0° |
| Effective top tube | 596 | not listed | |
| Chainstay length | 435 | 432mm | −3 mm |
| Wheelbase | 1170 | 1179mm | +9 mm |
| BB drop | 21 | 21mm | ±0 mm |
| Standover | 723 | 757mm | +34 mm |
| Seat tube length | 435 | 410mm | −25 mm |
| Fork length | 542 | 542mm | ±0 mm |
| Head tube length | 110 | 110mm | ±0 mm |
| BB height | not listed | 336mm |
Differences are the Specialized Stumpjumper ST Alloy 27.5 minus the Merida One-Forty. Full charts: 2019 Merida One-Forty, 2020 Specialized Stumpjumper ST Alloy 27.5.
Where each sits in its class
Merida One-FortySpecialized Stumpjumper ST Alloy 27.5
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
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