2026 Trek Marlin 4 Gen 3 Aluminium Mountain Bike (Medium) Blue Sage

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The Marlin 4 is the gateway mountain bike that will take you from rail trails to singletrack. It’s ideal for riders who want a mountain bike with knobby tyres that can double as a rugged commuter. Disc brakes, front suspension, Shimano 14-speed shifting and mounts for a rack and mudguards make this a great bike for trail riders and campus commuters alike.

Note: If you can’t see the size or colour you want, please contact us, as it could be available from the Trek Warehouse.

$799.99

In Stock (locally)

Description

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

*Frame

Size: XXS , XS

Alpha Silver Aluminium, curved top tube, internal derailleur and dropper post routing, rack and kickstand mount, 135×5 mm ThruSkew

Size: S , M , ML , L , XL , XXL

Alpha Silver Aluminium, internal derailleur and dropper post routing, rack and kickstand mount, 135×5 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 XCE 28, coil spring, preload, 42 mm offset for 27.5″ wheel, 100 mm QR, 80 mm travel

Size: S

SR Suntour XCE 28, coil spring, preload, 42 mm offset for 27.5″ wheel, 100 mm QR, 100 mm travel

Size: M , ML , L , XL , XXL

SR Suntour XCE 28, coil spring, preload, 46 mm offset for 29″ wheel, 100 mm QR, 100 mm travel

Hub front
Formula DC-20, alloy, 6-bolt, 100×5 mm
Skewer front
Hub rear
Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135×5 mm
Skewer rear
Rim
Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
*Tyre

Size: XXS

Bontrager Montrose Comp, wire bead, 30 tpi, 26×2.35”

Size: XS , S

Bontrager Montrose Comp, wire bead, 30 tpi, 27.5×2.40″

Size: M , ML , L , XL , XXL

Bontrager Montrose Comp, wire bead, 30 tpi, 29×2.40″

Shifter
Shimano M315, 8-speed
Rear derailleur
Shimano ESSA U2000
*Crank

Size: XXS , XS

ProWheel alloy, 30T narrow-wide steel ring, 160 mm length

Size: S , M , ML

ProWheel alloy, 30T narrow-wide steel ring, 170 mm length

Size: L , XL , XXL

ProWheel alloy, 30T narrow-wide steel ring, 175 mm length
Bottom bracket
Threaded cartridge
Cassette
Shimano HG300, 11-45, 8-speed
Chain
KMC Z8.3, 8-speed
Pedal
Nylon platform

Saddle
*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
*Stem

Size: XXS , XS , S

Bontrager Comp, 31.8 mm, 7-degree, 35 mm length

Size: XXL

Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 70 mm length
Head set
Semi-integrated, 1-1/8”
*Brake

Size: XXS , XS , S

Tektro HD-M276 hydraulic disc

Size: XXS , XS , S , M , ML , L , XL , XXL

Power BH-M286TF hydraulic disc, 160 mm rotor

Size: M , ML , L , XL , XXL

Tektro HD-M275 hydraulic disc

Size: M , ML , L , XL , XXL

Power BH-M286TF hydraulic disc, 180 mm rotor
*Brake rotor

Size: XXS , XS , S , M , ML , L , XL , XXL

Tektro, 6-bolt, 160mm

Size: M , ML , L , XL , XXL

Tektro, 6-bolt, 180mm

Weight
M – 14.90 kg / 32.85 lbs
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.

Additional information
Size

L(29" wheel)

,

M(29" wheel)

,

ML(29" wheel)

,

S(27.5" wheel)

,

XL(29" wheel)

,

XS(27.5" wheel)

,

XXL(29" wheel)

Color

Blue Sage

,

Matte Dark Web

,

Purple Flip/Black Fade

Brand

Trek

Condition

New

Adult

No

Age Group

Adult

Gender

unisex

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