Trek

Trek Marlin 5 Gen 3 2025

$999.99
$999.99
$999.99
Tax included.
If what you're looking for is unavailable call our store 1300 436 379
Color: Matte Dnister Black
Size:

Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. It features a trail-savvy frame with a suspension fork, 9-speed Shimano CUES shifting and mounts for a rack and kickstand that make it an ideal choice for trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike.

Overview

Specifications

Sizing

Overview

It's right for you if...

You're new to the trail and you’re looking for a real mountain bike that doubles as a commuter – and you want it all at an exceptional value.

The tech you get

A lightweight aluminium frame with internal routing to protect your cables and add to the bike's sleek look, an upgraded 9-speed Shimano CUES drivetrain, a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes and a terrain-smoothing suspension fork with a lockout.

The final word

The Marlin 5 is a great ride for all your adventures. It's also versatile and a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorise and haul a load.


Why you'll love it

  1. The Marlin Gen 3 gives you serious trail capability, with big tyre clearance and slack, confidence-boosting geometry that keeps you stable from singletrack to city
  2. Mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter
  3. Its ThruSkew system is safer, simpler and stronger, plus it makes removing the rear wheel easy for flat fixes in a hurry
  4. Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending
  5. Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount

Specifications

*Please note – spec applies to all sizes unless listed separately

Frameset
*Frame Size: XXS , XS
Alpha Silver Aluminium, curved top tube, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew
Size: S , M , ML , L , XL , XXL
Alpha Silver Aluminium, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew
*Fork Size: XXS
SR Suntour XCM 30, coil spring, lockout, preload, 100 mm QR, 100 mm travel, 26" wheel
Size: XS
SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel
Size: S
SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel
Size: M , ML , L , XL , XXL
SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel
Max compatible fork travel 120mm, XXS: 80mm
Wheels
Hub front Formula DC-20, alloy, 6-bolt, 5x100 mm QR
Hub rear Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
Skewer rear 173x5 mm QR
Rim Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
Spokes 14 g stainless steel, black
*Tyre Size: XXS
Bontrager XT3 Comp, wire bead, 30 tpi, 26x2.35"
Size: XS , S
Bontrager XT3 Comp, wire bead, 30 tpi, 27.5x2.40"
Size: M , ML , L , XL , XXL
Bontrager XT3 Comp, wire bead, 30 tpi, 29x2.40"
Max tyre size Frame: 29x2.40" (XXS: 26x2.40", XS & S: 27.5x2.40"), Fork: See manufacturer
Drivetrain
Shifter Shimano U4000, 9-speed
Rear derailleur Shimano CUES U4000
*Crank Size: XXS , XS
Prowheel C10Y-NW, 30T steel narrow-wide ring, 160 mm length
Size: S , M , ML
Prowheel C10Y-NW, 30T steel narrow-wide ring, 170 mm length
Size: L , XL , XXL
Prowheel C10Y-NW, 30T steel narrow-wide ring, 175 mm length
Cassette Shimano LINKGLIDE LG300, 11-46, 9-speed
Chain Shimano LG500
Pedal VP-536 nylon platform
Max. chainring size 1x: 34T, 2x: 36/22
Components
*Seatpost Size: XXS
Bontrager alloy, 31.6 mm, 12 mm offset, 300 mm length
Size: XS , S , M
Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length
Size: ML , L , XL , XXL
Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
*Handlebar Size: XXS , XS
Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width
Size: S
Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width
Size: M , ML , L , XL , XXL
Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
Grips Bontrager XR Trail Comp, nylon lock-on
*Stem Size: XXS , XS , S
Bontrager Comp, 31.8 mm, 7-degree, 35 mm length
Size: M , ML , L
Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
Size: XL
Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 60 mm length
Size: XXL
Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length
Head set Semi-integrated, 1-1/8"
Brake rotor Tektro, 6-bolt, 160mm
*Brake Set Size: XXS , XS , S
Tektro HD-M276 hydraulic disc, short reach
Size: M , ML , L , XL , XXL
Tektro HD-M275 hydraulic disc
Rotor size Max brake rotor sizes - Frame: 180mm (XXS: 160mm), Fork: see fork manufacturer
Weight
Weight M - 15.10 kg / 33.29 lbs (with tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.

Sizing

How tall are you?

To measure your height, stand up straight, barefoot, with your back, heels, shoulders and head all touching a wall. While looking straight ahead, place a book or straight edge on your head and slowly push it against the wall. Your straight edge should be parallel with the floor. Mark the spot where the bottom of the book is touching the wall. The distance from the marked spot to the floor is your height.

What is your inside leg?

How to measure: Stand barefoot with your back straight and against a wall. Tuck a ruler or something that extends to the floor between your legs. Using both hands, and keeping it level, pull the ruler up into your crotch as if you were sitting on the saddle. Measure the distance from the top edge of the ruler to the ground to find your inside leg measurement. Your inside leg is very important to your final bike size so please measure carefully.

Sizing

size-table
Size Rider Height Inseam
2XS

135 - 145 cm

4'5" - 4'9"

64 - 68 cm

25" - 27"

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"

2XL

195 - 203 cm

6'5" - 6'8"

91 - 97 cm

36" - 38"


Geometry

All measurements provided in cm unless otherwise stated.

Frame size number Frame size letter Wheel size A — Seat tube B — Seat tube angle Effective seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
14.5" XS 27.5" 34.0 73.8° 74.0° 9.0 66.5° 55.1 31.3 4.5 43.3 4.2 11.0 109.2 65.8 39.0 56.3
15.5" S 27.5" 37.0 73.8° 74.0° 10.0 66.5° 57.9 31.3 4.5 43.3 4.2 11.0 112.1 69.2 41.5 57.2
17.5" M 29" 42.0 73.4° 74.0° 10.5 66.5° 61.5 30.8 6.0 43.8 4.6 11.0 116.3 74.7 44.0 60.9
18.5" ML 29" 43.5 73.4° 74.0° 11.0 66.5° 63.1 30.8 6.0 43.8 4.6 11.0 118.0 75.9 45.5 61.4
19.5" L 29" 45.0 73.4° 74.0° 11.5 66.5° 64.7 30.8 6.0 43.8 4.6 11.0 119.7 77.1 47.0 61.8
21.5" XL 29" 50.0 73.4° 74.0° 13.5 66.5° 67.8 30.8 6.0 43.8 4.6 11.0 123.0 79.1 49.5 63.7
23.0" XXL 29" 54.0 73.4° 74.0° 15.0 66.5° 70.7 30.8 6.0 43.8 4.6 11.0 126.1 81.6 52.0 65.1

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