Trek

2019 Trek Session 9.9 29

Previous used estimate

$2,344 - $2,411

Actual value depends on condition, size, and local demand.

2019 Trek Session 9.9 29

Value Guide market data · 2019 Trek Session 9.9 29

12-month projected trend

13%

Direction and magnitude, not judgment

vs. category average

6%

Drops faster than category avg

Price over time - 2019 Trek Session 9.9 29

$8.4k$4.7k$970MSRPMSRPYr 1Yr 2Yr 3Yr 4Yr 5Yr 6Yr 7Yr 7Yr 8Yr 9Yr 10Yr 11Yr 12Yr 13Yr 14Yr 14Yr 15Yr 16Yr 17Yr 18Yr 19Yr 20Yr 20

Values based on actual sales data. Enter your bike's specifics to get a precise valuation.

All Session model years

Overview

About this bike

Session 9.9 is the pinnacle of downhill mountain bike performance. It's built for one reason: going as fast as freakin' possible down hills. It pairs proven Shimano Saint parts with Trek's premium OCLV Mountain Carbon frame and FOX Factory suspension with super-fast 29-inch wheels. This is the same DH bike the pros ride, and the bike of choice for World Champion Gee Atherton. It's right for you if... You want the fastest downhill bike Trek offers. You want the speed of 29-inch wheels and the stability of a full-on DH frame. You seek out the fastest lines, and the biggest jumps. You like to dial in your ride, and want the ability to fine-tune your suspension, fit, and handling on a bike that makes no compromises. The tech you get An OCLV Mountain Carbon frame, 190mm tunable front and rear FOX Factory air suspension, Bontrager Line DH wheels, and proven Shimano Saint drivetrain and brakes. This is a full-on DH race bike, and it's built so you can refine your setup for your fastest runs with Mino Link and an adjustable fixed-angle headset. The final word Best frame, best suspension, best parts, and fast-rolling 29-inch wheels. This is the only choice if you're a true DH devotee. Session 9.9 is simply the fastest bike on the mountain, even when that mountain is a stop on the World Cup circuit. Why you'll love it 1 - It's like a precision wrecking ball that gives you the confidence to tear down mountains and take the fastest, burliest lines 2 - The fastest runs demand the most dialed setup: the air shock and fork on Session 9.9 are adjustable and easy to fine-tune for different tracks 3 - Mino Link and fixed-angle headset cups let you adjust your geometry for the exact handling you want

Specifications

Subtype
Downhill
Category
Mountain
Component Fork
Fox Factory 40 FIT RC2, air spring, Kashima Coat, hi/lo speed compression, Boost 110x20 thru axle, 190mm travel
Component Size
Small, Medium, Large, X-Large
Component Stem
Bontrager Line Pro Direct Mount, 35mm clamp, 50mm length
Product Family
Session
Component Axles
Front: 110 x 20mm Rear: 157 x 12mm
Component Chain
KMC X10
Component Color
Matte Carbon Smoke
Component Frame
OCLV Mountain Carbon main frame & stays, ABP, magnesium EVO Link, tapered head tube, Mino Link, integrated frame protection, Control Freak internal routing, Carbon Armor, ISCG mount, 190mm travel
Component Brakes
Shimano Saint M820 hydraulic disc
Component Pedals
Wellgo MG-1, magnesium body, Cro-Mo axle, replaceable pins
Component Saddle
Bontrager Arvada, austenite rails
Component Headset
FSA Orbit, sealed cartridge bearing, 1-1/8-inch top, 1.5-inch bottom (includes geometry adjust angled cups)
Component Cassette
Shimano CS-5700, 11-25, 10 speed
Component Crankset
Shimano Saint M825 w/MRP G4 carbon chainguide
Component Shifters
Shimano Saint, 10 speed
Component Handlebar
Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 820mm width
Component Seat Post
Bontrager Rhythm Elite, 31.6mm, 0mm offset
Component Chainrings
36T
Component Front Tire
Bontrager G5 Team Issue, wire bead, 29 x 2.50
Component Rear Shock
Fox Factory Float X2, high/low speed rebound adjust, high/low speed compression adjust, tuned by Trek Suspension Lab, 225x70mm
Component Tape Grips
Bontrager XR Trail Elite, alloy lock-on
Component Bottom Bracket
Shimano SM-BB80, 83mm
Component Rear Derailleur
Shimano Saint M820, Shadow Plus
Rear Shock
Fox Factory Float X2, high/low speed rebound adjust, high/low speed compression adjust, tuned by Trek Suspension Lab, 225x70mm
Crankset
Shimano Saint M825 w/MRP G4 carbon chainguide
Pedals
Wellgo MG-1, magnesium body, Cro-Mo axle, replaceable pins
Bottom Bracket
Shimano SM-BB80, 83mm
Chain
KMC X10
Saddle
Bontrager Arvada, austenite rails
Handlebar
Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 820mm width
Headset
FSA Orbit, sealed cartridge bearing, 1-1/8-inch top, 1.5-inch bottom (includes geometry adjust angled cups)
Rear Derailleur
Shimano Saint M820, Shadow Plus
Stem
Bontrager Line Pro Direct Mount, 35mm clamp, 50mm length
Axles
Front: 110 x 20mm Rear: 157 x 12mm
Brakes
Shimano Saint M820 hydraulic disc
Cassette
Shimano CS-5700, 11-25, 10 speed
Chainrings
36T
Fork
Fox Factory 40 FIT RC2, air spring, Kashima Coat, hi/lo speed compression, Boost 110x20 thru axle, 190mm travel
Frame
OCLV Mountain Carbon main frame & stays, ABP, magnesium EVO Link, tapered head tube, Mino Link, integrated frame protection, Control Freak internal routing, Carbon Armor, ISCG mount, 190mm travel
Seat Post
Bontrager Rhythm Elite, 31.6mm, 0mm offset
Shifters
Shimano Saint, 10 speed
Tape/Grips
Bontrager XR Trail Elite, alloy lock-on
Color
Matte Carbon Smoke
Size
X-Large
Front Tire
Bontrager G5 Team Issue, wire bead, 29 x 2.50

What to check when buying used

Inspection

Frame condition

Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.

Inspection

Drivetrain wear

Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.

Inspection

Service history

Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.

Inspection

Suspension service

Confirm fork and rear shock service intervals and check pivot bearings for play.

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