Trek Marlin 4 Gen 3 Bike (2026)

2026 Trek Marlin 4 Gen 3 Lilac Mountain Bike. Trek Part Number: 5336971

The Marlin 4 is a trail-ready bike, ideal for everyday adventures, whether on or off the trail. It has a trail-ready frame with a suspension fork, Shimano ESSA 8-speed shifting, and rack and kickstand mounts make it the ideal choice for trail riders, or for those looking for a comfortable and stable bike for getting around town with the durability of a true mountain bike.

Frameset

• Frame: Alpha Silver Aluminum, internal derailleur and dropper post routing, rack and kickstand mounts, and 135x5mm ThruSkew thru axle
• Fork: SR Suntour XCE 28, coil spring, preload, 46mm offset for 29er wheels, 100mm QR, 100mm travel
• Maximum compatible fork travel: 120 mm

Wheels

• Front Hub: Formula DC-20, alloy, 6-bolt, 5x100mm QR
• Rear Hub: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR
• Rim: Bontrager Connection, double-wall, 32-hole, 20mm width, Schrader valve
• Tire: Bontrager Montrose Comp, wire bead, 30 tpi, 29x2.40”

Drivetrain

• Shifter: Shimano M315, 8-speed
• Derailleur: Shimano ESSA U2000
• Bottom Bracket: ProWheel Aluminum, 32T Narrow-Wide Steel Chainring, 170mm Length
• Bottom Bracket: VP BC73, 73mm, Threaded Cartridge
• Cassette: Shimano HG300, 11-45, 8-Speed
• Chain: KMC Z8.3, 8-Speed
• Pedal: VP-536 Nylon Platform

Components

• Seatpost: Bontrager Alloy, 31.6mm, 12mm offset, 400mm Length
• Handlebar: Bontrager Aluminum, 31.8mm, 15mm rise, 750mm width mm
• Grips: Trek Line Comp, nylon lock-on
• Stem: Bontrager Comp, 31.8mm, Blendr-compatible, 7-degree, 50mm rise
• Headset: Semi-integrated, 1-1/8"
• Brakeset: Tektro HD-M275 Hydraulic Disc
• Rotor: Tektro, 6-bolt, 160mm
• Rotor Size: Maximum rotor sizes - Frame: 180mm (XXS: 160mm), Fork: see fork manufacturer

Weight

• Weight: M - 14.90 kg (with tubes)
• Weight Limit: This bike has a maximum weight limit (combined weight of the bicycle, the cyclist, and the load) of 136 kg.