Session 8 29 GX
OverviewAbout the Trek Session 8 29 GX
The Trek Session 8 29 GX is a mountain bike, built on a aluminium frame, listed at $6,999.99. An off-road bike for trails, with grippy tyres and trail-ready geometry.
SizingWhat size Session 8 29 GX do I need?
Enter your height to see the size Trek recommends.
| Size | Rider height | In feet | Inseam |
|---|---|---|---|
| R1 | 161 to 175 cm | 5 ft 3 in to 5 ft 9 in | 76 to 82 cm |
| R2 | 174 to 188 cm | 5 ft 9 in to 6 ft 2 in | 82 to 88 cm |
| R3 | 186 to 196 cm | 6 ft 1 in to 6 ft 5 in | 87 to 92 cm |
Rider heights from Trek's size chart. Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
SpecificationsWhat we know
- Brand
- Trek
- Model year
- 2026
- Category
- Mountain
- Frame
- Aluminium
- Wheel size
- 29-inch
- Drivetrain
- SRAM GX 1x7
- Brakes
- Disc
- Frame sizes
- R1, R2, R3
- Price
- $6,999.99, RRP AUD (Trek Australia, checked 16 Oct 2026)
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize R3
- Stack
- 634 mm
- Reach
- 499 mm
- Stack/reach
- 1.27
- Head angle
- 63.6 deg
- Seat angle
- 77.1 deg
- Wheelbase
- 1309 mm
- Chainstay
- 448 mm
- BB drop
- 12 mm
- Standover
- 757 mm
- Fork rake
- 46 mm
Drivetrain & buildFull specification
- Groupset
- SRAM GX
- Shifting
- Mechanical
- Drive
- 1x
- Speeds
- 7
- Crank
- Truvativ Descendant DH, DUB 83, 34-T steel ring, 165 mm length
- Cassette
- SRAM PG-720, 11-25, 7-speed
- Rear derailleur
- SRAM GX DH, medium cage
- Brakes
- SRAM Maven Bronze 4-piston hydraulic disc
- Rotors
- 220/200mm
- Wheelset
- Bontrager Line DH 30, Tubeless Ready, 6-bolt, 110x20 mm Boost thru axle, 29"
- Stock tyre
- 29x2.50
- Tubeless
- Yes
- Fork material
- RockShox Boxxer, DebonAir+ spring, Rush RC damper, 52 mm offset, BoostDH 110x20 Maxle Stealth, 200 mm travel
- BB standard
- SRAM DUB, 83 mm, BSA threaded
- Seatpost
- Bontrager Rhythm Elite, 31.6 mm, 0 mm offset, 330 mm length
- Cockpit
- Bontrager Line Pro, 35 mm, Direct Mount, 50 mm length / Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
- Saddle
- Verse Short Comp, steel rails, 145 mm width
SuspensionMTB detail
- Front travel
- 200 mm
- Rear travel
- 200 mm
- Fork
- RockShox Boxxer
- Shock
- Marzocchi Bomber
- Wheel config
- 29
- Dropper
- No, rigid seatpost
- Discipline
- Downhill
- Suspension
- full suspension
Bike DNAWhat the numbers say
- Steering
- A 63.6 deg head angle points to very slack, built for steep descending.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (Trek Australia product data 61330 (spec list, geometry chart, size chart)), verified 2026-10-16. This is a specification analysis, not a physical ride review.
Where to buyStockist
BikeFinder is an independent directory. We link to retailers; prices and stock are set by the seller and shown as at the date checked.
