Compare/Specialized Demo vs Trek Session

Head to headMountain

Demo

Session

Specialized

Trek

Starting price

Demo$7,100

Session—

Claimed weight

Demo17.62 kg (38.8 lb)

Session—

Tire clearance

Demo—

Session—

Builds available

Demo1

Session0

01 / Overview

Overview

03 / Specifications

Where the builds differ.

Comparing our editor's-pick builds side-by-side. Winners highlighted row-by-row — lower price and weight, and the better-spec component, each mark a point.

01Frameset

Demo

Race · $7,100

Session

Claimed weight

17.62 kg (38.8 lb)

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Frame material

M5 alloy, Style-Specific DH Geometry, Horst pivot flip chip for 27.5 or 29 rear wheel, BSA threaded BB, full internal cable routing with option for full external brake, 148mm rear spacing, sealed cartridge bearing pivots, replaceable derailleur hanger, 200mm travel

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Fork

Öhlins DH38 M.1 29, TTX Twin Tube Damping, external low-speed rebound adjust, external high/low-speed compression adjust, 20x110mm, 58mm offset, 200mm travel

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Tire clearance

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02Groupset

Shift levers

SRAM X01 DH, trigger, 7-speed

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Rear derailleur

SRAM X01 DH, 7-speed

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Cassette

SRAM X01 DH, 7-speed, 10-24T

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Crankset

SRAM X01 DH, DUB, carbon, direct-mount ring, 165mm

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Brakes

SRAM Maven Ultimate, 4-piston hydraulic disc

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03Wheelset

Front wheel

Roval Traverse Alloy, 32h, 28mm internal width (29"); DT Swiss 350, 20x110mm; Sapim D-Light

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Rear wheel

Roval Traverse Alloy, 32h, 28mm internal width (27.5"); DT Swiss 350, 12x148mm; Sapim D-Light

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Front tire

Specialized Cannibal, GRID GRAVITY casing, GRIPTON T9, 2Bliss Ready, 29x2.4

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04Cockpit

Handlebar / stem

Renthal Fatbar 35, 5° upsweep, 7° backsweep, 30mm rise, 800mm, 35.0mm clamp

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Saddle

Body Geometry Henge DH, hollow titanium rails, 130mm

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Seatpost

Thomson, alloy, straight, 12-degree clamp

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03.1

Build variants & pricing

Demo · 1 builds$7,100

Race

SRAM X01 DH · Roval Traverse Alloy

$7,100

Session · 0 builds

04 / Geometry

How they fit, how they steer.

Reach × Stack · size —mm

Where the handlebar sits relative to the bottom bracket — the single most important fit pair.

Demo

Session

size —

Reach—

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Stack—

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Head tube angle—

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Trail—

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Chainstay length—

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Wheelbase—

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Top tube (effective)—

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04.1

Which size should I buy?

Your height

5'8"173 cm

5'0"5'5"5'10"6'3"6'7"

Demo

5'6" – 5'9"

Fits riders in this height range.

Session

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Fits riders in this height range.

→These are starting points. Flexibility, riding style, and preferred position all shift the answer — if you’re between sizes, a professional fit beats a chart.

05 / Reviews