2015 Specialized Demo vs 2015 Trek Session 9.8 Park 26
The L is the Trek Session 9.8 Park 26 size closest to your LONG Specialized Demo. 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 Trek Session 9.8 Park 26
Compared with the Specialized Demo in LONG, the Trek Session 9.8 Park 26 in L places the top of the head tube 27 mm lower and 16 mm further back, relative to the bottom bracket. Its wheelbase is 48 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −27 mm
- Lower front end
- Frame reach
- −16 mm
- Shorter frame reach
- Wheelbase
- −48 mm
- Shorter: quicker to change direction
- Head angle
- +0.7°
- Steeper: sharper steering
- Chainstays
- −12 mm
- Shorter: livelier
The two frames
Only the Specialized Demo is drawn. The Trek Session 9.8 Park 26 numbers we have for size L are missing the seat angle.
Geometry side by side
| Measurement | Specialized Demo LONG | Trek Session 9.8 Park 26 L | Difference |
|---|---|---|---|
| Reach | 439mm | 423 | −16 mm |
| Stack | 616mm | 589 | −27 mm |
| Head tube angle | 63.5° | 64.2° | +0.7° |
| Seat tube angle | 63° | not listed | |
| Effective top tube | 613mm | 607 | −6 mm |
| Chainstay length | 430mm | 418 | −12 mm |
| Wheelbase | 1228mm | 1180 | −48 mm |
| BB height | 347mm | 364 | +17 mm |
| Standover | 730mm | 754 | +24 mm |
| Seat tube length | 417mm | 440 | +23 mm |
| BB drop | not listed | 21 | |
| Head tube length | not listed | 125 |
Differences are the Trek Session 9.8 Park 26 minus the Specialized Demo. Full charts: 2015 Specialized Demo, 2015 Trek Session 9.8 Park 26.
Where each sits in its class
Specialized DemoTrek Session 9.8 Park 26
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 | Trek Session 9.8 Park 269.8 Park 26 |
|---|---|---|
| Frame | not listed | Trek OCLV |
| Fork | not listed | RockShox BoXXer |
| Shifter | not listed | SRAM X-7 |
| Derailleur | not listed | SRAM X-9 |
| Cassette | not listed | SRAM PG-1050 |
| Chain | not listed | SRAM 1071 |
| Crankset | not listed | TruVativ Descendant DH |
| Pedals | not listed | Wellgo BO-87B |
| Wheelset | not listed | DT Swiss FR2150 |
| Tire | not listed | Bontrager G4 Team Issue |
| Brake | not listed | Avid Code |
| Handlebar | not listed | Bontrager Rhythm Elite |
| Stem | not listed | Bontrager Rhythm |
| Headset | not listed | FSA NO.57E |
| Seatpost | not listed | Bontrager Rhythm Elite |
| Saddle | not listed | Bontrager Evoke 2 |
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