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The Session 8 is a downhill mountain bike featuring a high-pivot suspension design that ensures speed, traction, and control on the most punishing runs.
The Session 8 is a downhill mountain bike featuring a high-pivot suspension design that ensures speed, traction, and control on the most punishing runs.
Trek

Trek Session 8 29 GX Mountain Bike in Chameleon Green

£5,000.00
Size Guide
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With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

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Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

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We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

RETURNS POLICY

If you'd like to exchange or return your order please include your name and order number with the return, our returns address is:

Returns
Activ Cycles
Unit 1&2 Kingfisher Business Park
Henwood
Ashford
TN24 8DG

Subject to the terms set out below we are happy to offer a refund or exchange on all goods except goods which are special orders or nutrition products, or where we have expressly advised you that there is no right to return the goods ordered (save in the event the goods are faulty) provided the goods are returned to us within 14 days of delivery to you.

If you return goods to us and request a different size or alternative product we will send it out free of charge (subject to stock availability). If you require a refund (or the replacement item is not in stock) we aim to process refunds within 2 working days of receipt of the goods. It is your responsibility to ensure that the item is returned to us safely and securely and in saleable condition.

Refunds will be processed using the same method of payment used for the original purchase. Due to the high incidence of fraud, we regret that we are unable to offer any refund without a valid receipt/delivery note.

If the product is faulty or wrong due to a mistake on our part then we will send out replacements free of charge and supply you with a prepaid returns label. For all goods returned please include a letter giving details along with a copy of the original receipt. Returned goods must be unused and with all appropriate packaging and labelling intact.

Your rights to return goods are protected under the Consumer Protection (Distance Selling) Regulations 2000 which can be found at theConsumer Protection (Distance Selling) Regulations 2000 (legislation.gov.uk).

Trek Session 8 29 GX Mountain Bike in Chameleon Green

Season:2026

Brand:Trek

Code:61330GRN

The Session 8 is a downhill mountain bike featuring a high-pivot suspension design that ensures speed, traction, and control on the most punishing runs.

This fast, traction-packed DH bike is built around a burly alloy frame. It features 200 mm rear travel with a Marzocchi Bomber shock, and a 200 mm RockShox Boxxer fork with a plush DebonAir+ spring and Rush RC damper. Stopping power is provided by powerful Maven Bronze 4-piston brakes, paired with a SRAM GX DH 7-speed drivetrain.

The Session’s suspension layout, featuring a high pivot and idler pulley, increases traction, carries more speed, and reduces pedal kickback for enhanced stability. Virtually zero pedal kickback means you will stay confidently planted and in control during descents, especially when landing jumps or drops. The high pivot design delivers a more efficient rearward axle path so you will carry more speed, and the wheel will not get hung up on obstacles.

The high-pivot design results in a rearward axle path that lets the back wheel move with the rearward force from bumps, not against it. On the trail, this feels like smoother suspension that maintains more forward momentum and provides more grip.

The bike comes stocked for speed with 29er wheels, but riders can run a mixed setup with a 27.5" rear wheel, or even 27.5" front and rear for more agility. With Mino Link adjustments on both geometry and suspension, you can easily tune the Session to a progressive feel for racing days or dial it back for park days.

Trek’s DH sizing system is based on reach, not rider height, which is the most important factor in a great downhill bike fit. The chainstay length, or rear centre, grows as the frame reach grows, ensuring balanced weight distribution no matter the frame’s size.

Features:

  • Burly alloy frame.
  • High-pivot suspension design with idler pulley.
  • Active Braking Pivot allows engineers to tune how the suspension reacts to acceleration and braking forces independently.
  • Reach-based sizing system for optimal fit.
  • Size-specific chainstay length.
Technical Information
  • 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
  • Fork
    RockShox Boxxer, DebonAir+ spring, Rush RC damper, 52 mm offset, BoostDH 110x20 Maxle Stealth, 200 mm travel
  • Shock (Size R1)
    Marzocchi Bomber, 181 kg/400 lb spring, 250 mm x 72.5 mm
  • Shock (Size R3)
    Marzocchi Bomber, 227 kg/500 lb spring, 250 mm x 72.5 mm
  • Shock (Size R2)
    Marzocchi Bomber, 204 kg/450 lb spring, 250 mm x 72.5 mm
  • Wheel front
    Bontrager Line DH 30, Tubeless Ready, 6-bolt, 110x20 mm Boost thru axle, 29"
  • Wheel rear
    Bontrager Line DH 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano 7 speed freehub, 157x12 mm thru axle, 29"
  • Skewer rear
    Bontrager Switch thru axle, removable lever
  • Tyre
    Bontrager G5 Team Issue, wire bead, 2-ply 60 tpi, 29x2.50"
  • Rim strip
    Bontrager TLR
  • Max tyre size
    Frame: 29x2.50", Fork: See manufacturer
  • Shifter
    SRAM GX DH, 7-speed
  • Rear derailleur
    SRAM GX DH, medium cage
  • Crank
    Truvativ Descendant DH, DUB 83, 34-T steel ring, 165 mm length
  • Bottom bracket
    SRAM DUB, 83 mm, BSA threaded
  • Cassette
    SRAM PG-720, 11-25, 7-speed
  • Chain
    SRAM PC-1110, 11-speed
  • Pedal
    Wellgo BO-87B, alloy body, Cro-Mo axle, replaceable pins
  • Max. chainring size
    1x: 36T
  • Saddle
    Verse Short Comp, steel rails, 145 mm width
  • Seatpost
    Bontrager Rhythm Elite, 31.6 mm, 0 mm offset, 330 mm length
  • Handlebar
    Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
  • Grips
    Trek Line Pro, lock on
  • Stem
    Bontrager Line Pro, 35 mm, Direct Mount, 50 mm length
  • Head set
    FSA Orbit, sealed cartridge bearing, 1-1/8" top, 1.5" bottom (includes geometry-adjust angled cups)
  • Brake
    SRAM Maven Bronze 4-piston hydraulic disc
  • Brake rotor (Sizes R1, R3, R2)
    SRAM CentreLine, 6-bolt, round-edge, 220 mm
  • Brake rotor (Sizes R1, R3, R2)
    SRAM CenterLine 2.0, 6-bolt, 200 mm
  • Rotor size
    Max brake rotor sizes – Frame: 220 mm, Fork: see fork manufacturer
  • Weight (R2)
    19.05 kg / 42 lbs (with tubes)
  • Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lbs).
Sizing Information
Professional Opinion
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