2018 Specialized Demo 8 Frameset vs 2019 Specialized Demo Alloy 27.5
The EXTRA LONG is the Specialized Demo Alloy 27.5 size closest to your EXTRA LONG Specialized Demo 8 Frameset. 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 Demo Alloy 27.5
Compared with the Specialized Demo 8 Frameset in EXTRA LONG, the Specialized Demo Alloy 27.5 in EXTRA LONG places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket.
- Frame stack
- ±0 mm
- About the same height
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- ±0 mm
- About the same
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Demo 8 Frameset, EXTRA LONGSpecialized Demo Alloy 27.5, EXTRA LONGDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Demo 8 Frameset EXTRA LONG | Specialized Demo Alloy 27.5 EXTRA LONG | Difference |
|---|---|---|---|
| Reach | 460mm | 460mm | ±0 mm |
| Stack | 614mm | 614mm | ±0 mm |
| Head tube angle | 63.5° | 63.5° | ±0.0° |
| Seat tube angle | 74° | 74° | ±0.0° |
| Effective top tube | 636mm | 636mm | ±0 mm |
| Chainstay length | 430mm | 430mm | ±0 mm |
| Wheelbase | 1248mm | 1248mm | ±0 mm |
| BB drop | 12mm | 12mm | ±0 mm |
| BB height | 342mm | 342mm | ±0 mm |
| Standover | 698mm | 698mm | ±0 mm |
| Seat tube length | 367mm | 419mm | +52 mm |
| Fork length | 590mm | not listed | |
| Head tube length | 105mm | 105mm | ±0 mm |
Differences are the Specialized Demo Alloy 27.5 minus the Specialized Demo 8 Frameset. Full charts: 2018 Specialized Demo 8 Frameset, 2019 Specialized Demo Alloy 27.5.
Where each sits in its class
Specialized Demo 8 FramesetSpecialized Demo Alloy 27.5
Each bike is ranked against the other downhill bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Specialized Demo 8 FramesetS-Works Frameset | Specialized Demo Alloy 27.5Alloy 27.5 |
|---|---|---|
| Rear shock | Öhlins TTX | Fox Van RC |
| Fork | not listed | RockShox BoXXer RC 27.5 |
| Shifter | not listed | SRAM GX |
| Derailleur | not listed | SRAM GX |
| Cassette | not listed | SRAM PG-1030 |
| Chain | not listed | SRAM PC-1031 |
| Crankset | not listed | SRAM Descendant |
| Tire | not listed | Specialized Butcher |
| Brake | not listed | SRAM Guide RE |
| Stem | not listed | Specialized two-piece |
| Grips | not listed | Specialized Sip Grip |
| Saddle | not listed | Specialized Phenom Comp |
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