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Trek Session 8 GX Mountain Bike 2022

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Session 8 GX Mountain Bike 2022
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Product ID: 1397768

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Trek Session 8 GX Mountain Bike 2022

With an all-new high pivot suspension layout and revised geometry, the Trek Session 8 GX Mountain Bike 2022 delivers unparalleled traction and handling to make it Trek’s fastest downhill bike to date. Fully updated with modern geometry numbers, the Session’s burly aluminium frame is built strong to hold up to bike-park abuse, and features a revised sizing system that allows the rider to select a size for their ride style, not their height.

The redesigned frame brings with it exceptional grip on even the roughest terrain. By utilising a high pivot style linkage, the rearward axle path is increased, which lifts the back wheel up and over obstacles to reduce hang up on roots and rocks. To combat pedal kickback, an idler pulley is used, which provides a controlled feel when landing jumps and drops. 

Coming stock as a full 29” setup, the frame is capable of being run in a 27.5” configuration through the use of an aftermarket EXT headset cup, and can even be run as a mullet 27.5” rear, 29” front by switching the Mino Link to the high position. A lower shock mount progression Flip-Chip allows the progression rate to be adjusted between 20 and 25%, depending on your preference. 

The durable frameset is backed by an equally tough build kit, featuring the workhorse SRAM GX 7-speed drivetrain for no-nonsense, crisp shifting. The Boxxer Select fork features the ultra-plush Charger RC damper and rear suspension is taken care of by a supple FOX Van Performance coil shock, both of which provide excellent grip and feel. SRAM Code R four-piston brakes deliver confidence with their supreme power, and the Bontrager Line DH 30 wheelset features a 108 POE rear hub for near-instant acceleration. 


  • Robust aluminium frameset
  • New suspension layout with a high pivot and idler pulley increases traction
  • Virtually zero pedal kickback means that you’ll stay confidently planted and in control during descents
  • The high pivot design delivers a more efficient rearward axle path
  • Lower shock mount chip adjusts suspension progression between 20 and 25%
  • New DH sizing system, choose a size based on your ride style, not your height
  • RockShox Boxxer Select and FOX Van Performance coil shock for plush suspension performance
  • Tough Bontrager Line DH 30 wheelset is built to take the hits
  • SRAM GX 7-speed drivetrain
  • SRAM Code R brakes for supreme stopping power

Technical Specification

Frame Trek 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, 157x12mm thru-axle, 200mm travel
Fork RockShox Boxxer Select, DebonAir spring, Charger RC damper, 46mm offset, 20x110mm Boost thru-axle, 200mm travel
Rear Shock FOX VAN Performance, R1 - 400lb spring, R2 - 450lb spring, R3 - 500lb spring, 250x72.5mm
Bottom Bracket SRAM DUB, 83 mm, BSA threaded
Stem Bontrager Line Pro, 35mm, Direct Mount, 50mm length
Handlebar Bontrager Line, aluminium, 35mm, 27.5mm rise, 780mm width
Grips Bontrager XR Trail Elite, nylon lock-on
Front Brake SRAM Code R hydraulic disc
Rear Brake SRAM Code R hydraulic disc
Brake Levers SRAM Code R
Rear Derailleur SRAM GX DH, medium cage
Shift Levers SRAM GX DH, 7-speed
Chain SRAM PC-1110, 11-speed
Cassette SRAM PG-720, 11-25, 7-speed
Crankset Truvativ Descendant DH, DUB 83, 34t steel ring, 165mm length
Front Wheel Bontrager Line DH 30, tubeless-ready, 6-bolt, 110x20mm Boost thru-axle
Rear Wheel Bontrager Line DH 30, tubeless-ready, Rapid Drive 108 engagement, 6-bolt, Shimano 7-speed freehub, 157x12mm thru-axle
Front Tyre Bontrager G5 Team Issue, tubeless-ready, 2-ply 60tpi, 29x2.50"
Rear Tyre Bontrager G5 Team Issue, tubeless-ready, 2-ply 60tpi, 29x2.50"
Saddle Bontrager Arvada, hollow chromoly rails, 138 mm width
Seatpost Bontrager Rhythm Elite, 31.6mm, 0mm offset, 330mm length
Pedals Wellgo BO-87B, alloy body, Cro-Mo axle, replaceable pins
Accessories Bontrager Switch thru-axle, removable lever
Claimed Manufacturers Weight 17.68kg (Size R2, with sealant, no tubes)

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.

All bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance or contact Customer Care. We do not install accessories to bikes, including mudguards.

Trek Session 8 GX Mountain Bike 2022 Sizing

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