Trek Marlin 4 Gen 3 - Matte Dark Web

This trail-ready hardtail mountain bike delivers an excellent balance of value, simplicity, and rugged utility, making it an ideal choice for daily commutes, fire road exploring, or introducing yourself to the singletrack. Featuring a modern 1x8 drivetrain utilizing Shimano's reliable ESSA group, a narrow-wide chainring to keep your chain securely on track, and dependable hydraulic disc brakes, this bike brings true mountain bike capability to an incredibly accessible package.

Specifications

Frameset & Suspension

• Frame: Alpha Silver Aluminium, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew quick-release dropout interface.

  • Note: Size XS features a curved top tube for lower standover height and easier mounting.

• Fork Configuration:

  • Size XS: SR Suntour XCE 28, coil spring, preload adjustment, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel.

  • Size S: SR Suntour XCE 28, coil spring, preload adjustment, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel.

  • Sizes M, ML, L, XL: SR Suntour XCE 28, coil spring, preload adjustment, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel.

Drivetrain & Shifting (Shimano ESSA 1x8)

• Shifter: Shimano M315, 8-speed.

• Front Derailleur: N/A (1x Dedicated single-ring layout).

• Rear Derailleur: Shimano ESSA U2000.

• Cassette: Shimano HG300, 11-45T, 8-speed wide-range.

• Chain: KMC Z8.3, 8-speed.

• Bottom Bracket: Threaded cartridge.

• Pedals: Nylon platform pedals.

• Crankset Configurations (ProWheel alloy, 30T narrow-wide steel ring):

  • Size XS: 160 mm length.

  • Sizes S, M, ML: 170 mm length.

  • Sizes L, XL: 175 mm length.

• Max Chainring Limits: 1x configuration: See FAQ | 2x configuration: 36T | 3x configuration: 42T.

Brakes & Rotors

• Brakes / Calipers Configuration:

  • Sizes XS, S: Tektro HD-M276 hydraulic disc or Power BH-M286TF hydraulic disc system.

  • Sizes M, ML, L, XL: Tektro HD-M275 hydraulic disc or Power BH-M286TF hydraulic disc system.

• Rotors: Tektro 6-bolt design ([Front] 180 mm on sizes M-XL / Power BH-M286TF 180 mm standard / [Rear] 160 mm).

• Rotor Size Limits: Frame maximum capacity is 180 mm (Size XXS limits at 160 mm). For front fork maximums, cross-reference the fork manufacturer guidelines.

Wheels & Tyres

• Rims: Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve layout.

• Front Hub: Formula DC-20, alloy, 6-bolt, 100x5 mm.

• Front Skewer: 116x5mm QR.

• Rear Hub: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm.

• Rear Skewer: 173x5 mm QR.

• Tyres (Bontrager Montrose Comp, wire bead, 30 tpi casing):

  • Sizes XS, S: 27.5" x 2.40".

  • Sizes M, ML, L, XL: 29" x 2.40".

• Max Tyre Clearance: Frame limits at 29" x 2.40" (XXS: 26x2.40" / XS & S: 27.5x2.40"). For front fork clearances, cross-reference the manufacturer guidelines.

Cockpit & Components

• Saddle: Bontrager Verse Short, stainless steel rails.

• Headset: Semi-integrated, 1-1/8''.

• Grips: Trek Line Comp, nylon lock-on.

• Handlebars (Bontrager alloy, 31.8 mm clamp standard):

  • Size XS: 5 mm rise, 690 mm width.

  • Size S: 15 mm rise, 720 mm width.

  • Sizes M, ML, L, XL: 15 mm rise, 750 mm width.

• Seatpost Configurations (Bontrager alloy, 31.6 mm diameter, 12 mm offset):

  • Sizes XS, S, M: 330 mm length.

  • Sizes ML, L, XL: 400 mm length.

• Stem Geometry by Size (Bontrager Comp, 31.8 mm clamp, 7-degree rise):

  • Sizes XS, S: 35 mm length.

  • Sizes M, ML, L: 50 mm length (Blendr compatible).

  • Size XL: 60 mm length (Blendr compatible).

Sizing, Weight & Performance Limits

• Alpha Sizes Available: XS, S, M, ML, L, XL

• Total Bike Weight: 14.90 kg / 32.85 lbs (Size Medium configuration setup with factory inner tubes).

• Weight Limit: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

Please Note: We make every effort to ensure the accuracy of the specification information, but components are subject to change by the manufacturer at any time without prior notice due to ongoing factory running parts substitutions.