Trek Marlin 6 Gen 3 Mountain Bike 2026 - Hardtail MTB

The Trek Marlin 6 Gen 3 is the perfect trail companion for riders ready to build confidence and skills off-road. Its updated Alpha Silver Aluminium frame features slacker, longer geometry, giving you extra control when descending and added stability on varied terrain. It’s this capable trail-focused design that makes the Marlin a go-to choice for riders looking to step up from basic bikes without a steep learning curve or price tag.
Key Features:
- Alpha Silver Aluminium frame with internal routing and modern trail geometry
- RockShox Judy coil fork with 100 mm travel and TurnKey lockout
- Shimano CUES U6000 10-speed drivetrain with LINKGLIDE cassette
- Shimano MT200 hydraulic disc brakes, front and rear
- 29" Bontrager Kovee wheels with 2.35" Maxxis Rekon Race tyres
- Rack and kickstand mounts add everyday versatility
- Available with 0% APR finance
A RockShox Judy suspension fork leads the way with 100 mm of coil-sprung travel and preload adjustability. It also includes a TurnKey lockout, so you can firm things up on smoother surfaces to maximise efficiency. The fork helps smooth out rocks, roots and uneven ground, making it easier to stay in control on the trail.
Shifting is taken care of by Shimano’s latest CUES U6000 10-speed drivetrain. Built around LINKGLIDE technology, it’s designed for smooth, durable shifting with long-lasting performance, ideal for riders who want minimal fuss with their gear changes. The wide-range 11–48T cassette means you’re well equipped for steep climbs and flowing descents.
Stopping power comes from Shimano MT200 hydraulic disc brakes, giving consistent and dependable braking whether you're riding dusty singletrack or wet city streets. The Bontrager Kovee wheels are tubeless-ready and built tough, while the wide 2.35" Maxxis Rekon Race tyres offer confident traction without compromising speed.
Additional features like internal dropper post routing, rack and kickstand mounts, and Smart Wheel Sizing across the range make this Marlin truly versatile. Whether you’re tackling weekend trails or commuting midweek, the Marlin 6 is ready for it all.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Alpha Silver Aluminium, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew |
| Fork | RockShox Judy, coil spring, preload, TurnKey lockout, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel |
| Headset | Semi-Integrated, 1-1/8" |
| Stem | Bontrager Comp, 31.8 mm, 7-degree |
| Bars | Bontrager alloy, 31.8 mm, 5 mm rise |
| Front Brake | Shimano MT200 Hydraulic Disc |
| Rear Brake | Shimano MT200 Hydraulic Disc |
| Rear Mech | Shimano CUES U6000 GS |
| Shifters | Shimano U6000, 10-speed |
| Speed | 10 |
| Rims | Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve // Bontrager Kovee, double-wall, Tubeless-Ready, 32-hole, 23 mm width, Presta valve |
| Front Hub | Formula DC-20, alloy, 6-bolt, 100 mm ThruSkew |
| Rear Hub | Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR |
| Front Tyre | Maxxis Rekon Race, tubeless ready, EXO casing, folding bead, 60 tpi, 29x2.35" |
| Rear Tyre | Maxxis Rekon Race, tubeless ready, EXO casing, folding bead, 60 tpi, 29x2.35" |
| Seat Post | TranzX JD-YSI34, internal routing, 34.9 mm |
| Saddle | Bontrager Verse Short, stainless steel rails |
| Chainset | Shimano U4000, 30T chainring |
| Bottom Bracket | Shimano, 73 mm, threaded cartridge, 122.5 mm spindle |
| Chain | Shimano LG500 |
| Cassette | Shimano CUES LG300, LINKGLIDE, 11-48, 10-speed |
| Weight | 15.00 kg |
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Trek Marlin Gen 3 Sizing Guide
| Size | Height (cm) | Height (Feet / Inches) | Inseam (cm) | Inseam (Inches) |
|---|---|---|---|---|
| XS | 145 - 155 cm | 4'9" - 5'1" | 69 - 73 cm | 27" - 29" |
| S | 155 - 165 cm | 5'1" - 5'5" | 74 - 78 cm | 29" - 31" |
| M | 165 - 176 cm | 5'5" - 5'9" | 79 - 83 cm | 31" - 33" |
| ML | 173 - 180 cm | 5'8" - 5'11" | 81 - 86 cm | 32" - 34" |
| L | 177 - 188 cm | 5'10" - 6'2" | 84 - 89 cm | 33" - 35" |
| XL | 188 - 195 cm | 6'2" - 6'5" | 89 - 91 cm | 35" - 36" |
| XXL | 195 - 203 cm | 6'5" - 6'8" | 91 - 97 cm | 36" - 38" |
What size frame do I need if I am between sizes? - read here
Trek Marlin Gen 3 Geometry Chart
| Size | XS | S | M | ML | L | XL | XXL |
|---|---|---|---|---|---|---|---|
| Stack | 563 | 572 | 601 | 614 | 618 | 637 | 651 |
| Reach | 390 | 415 | 440 | 455 | 470 | 495 | 520 |
| Head Tube Length | 90 | 100 | 105 | 110 | 115 | 135 | 150 |
| Head Tube Angle | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° | 66.5° |
| Bottom Bracket Height | 313 | 313 | 308 | 308 | 308 | 308 | 308 |
| Bottom Bracket Drop | 45 | 45 | 60 | 60 | 60 | 60 | 60 |
| Trail | 110 | 110 | 110 | 110 | 110 | 110 | 110 |
| Fork Rake/Offset | 42 | 42 | 46 | 46 | 46 | 46 | 46 |
| Chainstay Length | 433 | 433 | 438 | 438 | 438 | 438 | 438 |
| Wheelbase | 1092 | 1121 | 1153 | 1180 | 1197 | 1230 | 1261 |
| Top Tube Length (horizontal) | 551 | 579 | 615 | 631 | 647 | 678 | 707 |
| Standover Height | 658 | 692 | 747 | 759 | 771 | 791 | 816 |
| Seat Tube Length | 340 | 370 | 420 | 435 | 450 | 500 | 540 |
| Seat Tube Angle | 73.8° | 73.8° | 73.4° | 73.4° | 73.4° | 73.4° | 73.4° |
| Effective Seat Tube Angle | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° | 74.0° |
All measurements are in mm unless otherwise stated.
The above table shows the standard geometry for the bicycle as shipped, other geometry configurations may be available with certain bikes. Please contact us via Live Chat to find out more.
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Trek Marlin 6 Gen 3 Mountain Bike 2026 - Hardtail MTB
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