Quiver

2015 Specialized Demo 8 Frameset vs 2015 Trek Session 9.8 Park 26

The Trek Session 9.8 Park 26 size closest to your SHORT is the M. Compare the M instead

What changes on the Trek Session 9.8 Park 26

Compared with the Specialized Demo 8 Frameset in SHORT, the Trek Session 9.8 Park 26 in L places the top of the head tube 25 mm lower and 28 mm further forward, relative to the bottom bracket. Its wheelbase is 4 mm shorter, which can contribute to quicker direction changes.

Frame stack
−25 mm
Lower front end
Frame reach
+28 mm
Longer frame reach
Wheelbase
−4 mm
Shorter: quicker to change direction
Head angle
+0.7°
Steeper: sharper steering
Chainstays
−12 mm
Shorter: livelier

The two frames

We can't draw these frames yet. The Specialized Demo 8 Frameset numbers we have for size SHORT are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementSpecialized Demo 8 Frameset SHORTTrek Session 9.8 Park 26 LDifference
Reach395mm423+28 mm
Stack614mm589−25 mm
Head tube angle63.5°64.2°+0.7°
Effective top tube577mm607+30 mm
Chainstay length430mm418−12 mm
Wheelbase1184mm1180−4 mm
BB height343mm364+21 mm
Standover702mm754+52 mm
Seat tube length394mm440+46 mm
BB dropnot listed21
Head tube lengthnot listed125

Differences are the Trek Session 9.8 Park 26 minus the Specialized Demo 8 Frameset. Full charts: 2015 Specialized Demo 8 Frameset, 2015 Trek Session 9.8 Park 26.

Where each sits in its class

Specialized Demo 8 FramesetTrek Session 9.8 Park 26

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

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.

PartSpecialized Demo 8 FramesetS-Works FramesetTrek Session 9.8 Park 269.8 Park 26
Rear shockÖhlins TTX22Mnot listed
Framenot listedTrek OCLV
Forknot listedRockShox BoXXer
Shifternot listedSRAM X-7
Derailleurnot listedSRAM X-9
Cassettenot listedSRAM PG-1050
Chainnot listedSRAM 1071
Cranksetnot listedTruVativ Descendant DH
Pedalsnot listedWellgo BO-87B
Wheelsetnot listedDT Swiss FR2150
Tirenot listedBontrager G4 Team Issue
Brakenot listedAvid Code
Handlebarnot listedBontrager Rhythm Elite
Stemnot listedBontrager Rhythm
Headsetnot listedFSA NO.57E
Seatpostnot listedBontrager Rhythm Elite
Saddlenot listedBontrager Evoke 2

Know what is on every bike.

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