Trek Marlin 4 Gen 3 Bike (2025)

Trek Marlin 4 Gen 3 Mountain Bike in purple, 2025 model. Trek Reference: 5292532

The Marlin 5 is a trail-ready bike, perfect for everyday adventures on and off the trails. It features a trail-capable frame with a suspension fork, Shimano CUES 9-speed drivetrain, and mounts for racks and kickstands, making it an excellent choice for trail riders or anyone seeking a comfortable and stable bike for city commuting with the durability of a true mountain bike.

Frame Set

• Frame: Alpha Silver Aluminum, internal routing for shifting and dropper post, rack and kickstand mounts, and ThruSkew 135x5 mm dropout
• Fork: SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 46 mm offset for 29" wheels, 100 mm QR, 100 mm travel
• Maximum compatible fork travel: 120 mm

Wheels

• Front Hub: Formula DC-20, alloy, 6-bolt, 5x100 mm QR
• Rear Hub: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR
• Rim: Bontrager Connection, double wall, 32-hole, 20 mm width, Schrader valve
• Tire: Bontrager XT3 Comp, wire bead, 30 tpi, 29 x 2.40"
• Maximum tire size: Frame: 29x2.40", Fork: Refer to manufacturer

Drivetrain

• Shifter: Shimano U4000, 9-speed
• Rear Derailleur: Shimano CUES U4000
• Crankset: Prowheel C10Y-NW, narrow-wide steel chainring, 170 mm length
• Bottom Bracket: VP BC73, 73 mm, threaded cartridge
• Cassette: Shimano LINKGLIDE LG300, 11-46, 9-speed
• Chain: Shimano LG500
• Pedals: Nylon platform VP-536
• Maximum Chainring Size: 1x: See FAQs, 2x: 36T, 3x: 42T

Components

• Seatpost: Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
• Handlebar: Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
• Grips: Bontrager XR Endurance Comp, lock-on
• Stem: Bontrager Comp, 31.8 mm, Blendr compatible, 7 degrees, 50 mm length
• Headset: Semi-integrated, 1-1/8"
• Brake System: Hydraulic disc brakes Tektro HD-M275
• Brake Rotor: Tektro, 6-bolt, 160 mm
• Maximum Rotor Sizes: Frame: 180 mm (XXS: 160 mm), Fork: Refer to fork manufacturer

Weight

• Weight: M - 15.10 kg / 33.29 lbs (with tubes)
• Weight Limit: This bike has a maximum weight limit (combined weight of bike, rider, and cargo) of 136 kg.