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2025 Trek

Session 8

A 29″ aluminum frame full suspension downhill bike with high-end components.

Manufacturer Price

€5,499($6,395)€5,999
Weight39.5 lbs  
FrameAluminum
SuspensionFull, 200 / 200mm
ForkRockShox BoXXer
ShockMarzocchi Bomber
Wheels29″ Aluminum
Drivetrain1 × 7
GroupsetTruvativ Descendant, GX
BrakesSRAM Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Session 8
Other Downhill bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

27 mph

Session 8

26 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Sizing
R1

5'3" – 5'9"

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Price History
Reviews
Pinkbike
Trek Unveils Prototype Session With Adjustable Main Pivot

Feb 2025 · Mike Kazimer

It'll be interesting to see what changes the bike undergoes between the first World Cup DH race in Poland to the last stop at Mont-Sainte Anne - stay tuned for a closer, more in-depth bike check in the future..

Read Review

NSMB
The New 2022 Trek Session

Apr 2021

The new Trek doesn't look like a Session...ok maybe it does, but it's still all new!

Read Review

Geometry
Specs
Build
Frame

Alpha Platinum Aluminium, high main pivot, idler pulley, integrated frame protection, internal or external routing, magnesium rocker link, Mino Link, ISCG 05 2-bolt mount, Active Braking Pivot, 157x12 mm thru-axle, 200 mm travel

BB StandardBSA, 83mm, Threaded

Tire Clearance2.5"

ColorSatin Trek Black

Fork

RockShox Boxxer, DebonAir+ spring, Rush RC damper, 52 mm offset, BoostDH 110x20 Maxle Stealth, 200 mm travel

Travel200mm

Spring TypeAir

Shock

Marzocchi Rear Shock Bomber, 400lb coil spring, 250mm x 72.5mm, 29.97mm x 8mm Pin Mount Upper Width, 24.89mm x 8mm Pin Mount Lower Width, Fox Part Number 968-61-170 - R1: Marzocchi Bomber, 181 kg/400 lb spring, 250 mm x 72.5 mm; R2: Marzocchi Bomber, 204 kg/450 lb spring, 250 mm x 72.5 mm; R3: Marzocchi Bomber, 227 kg/500 lb spring, 250 mm x 72.5 mm

Travel200mm

Bottom Bracket

SRAM DUB, 83 mm, BSA threaded

Headset

FSA Orbit, sealed cartridge bearing, 1-1/8" top, 1.5" bottom (includes geometry-adjust angled cups)

Stem

Bontrager Line Pro, 35 mm, Direct Mount, 50 mm length

Handlebar

Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width

Saddle

Bontrager Arvada, hollow chromoly rails, 138 mm width

Seatpost

Bontrager Rhythm Elite, 31.6 mm, 0 mm offset, 330 mm length

TypeRigid

Pedals

Wellgo BO-87B, alloy body, Cro-Mo axle, replaceable pins

Grips

Bontrager XR Trail Elite, nylon lock-on

Groupset
Rear Derailleur

SRAM GX DH, medium cage

Crank

Truvativ Descendant DH, DUB 83, 34-T steel ring, 165 mm length

Shifters

SRAM GX DH, 7-speed

Cassette

SRAM PG-720, 11-25, 7-speed

Chain

SRAM PC-1110, 11-speed

Brakes

SRAM CODE Bronze 4-piston hydraulic disc

TypeSRAM Hydraulic Disc

Wheels
Rims

Front: Bontrager Line DH 30, Tubeless Ready, 6-bolt, 110x20 mm Boost thru axle, 29", Rear: Bontrager Line DH 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano 7 speed freehub, 157x12 mm thru axle, 29"

Tires

Bontrager G5 Team Issue, wire bead, 2-ply 60 tpi, 29x2.50"

Disc Rotors

Avid Disc Brake Rotor, Centerline, 200mm/6-Bolt, SRAM Part Number 00.5018.111.003 - R1, R2, R3: SRAM CentreLine, 6-bolt, round-edge, 200 mm; R1, R2, R3: SRAM CentreLine, 6-bolt, round-edge, 220 mm

Rider Notes
Riders Also Viewed

First added July 5

Last updated May 30