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The 2025 Trek Marlin 5 Gen 3 is a versatile hardtail mountain bike, perfect for trail adventures, commuting, or everyday riding. With confident handling, reliable components, and Trek’s proven build quality, it’s a brilliant choice for riders wanting performance and value.

The 2025 Trek Marlin 5 Gen 3 is a versatile hardtail mountain bike, perfect for trail adventures, commuting, or everyday riding. With confident handling, reliable components, and Trek’s proven build quality, it’s a brilliant choice for riders wanting performance and value.

Trek

2025 TREK MARLIN 5 HARDTAIL MOUNTAIN BIKE - M/L 17 INCH FRAME

£395.00
Size Guide
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

2025 TREK MARLIN 5 HARDTAIL MOUNTAIN BIKE - M/L 17 INCH FRAME

Season:2025

Brand:Trek

Code:2025TREKMARLIN5ML

The 2025 Trek Marlin 5 Gen 3 is a versatile hardtail mountain bike, perfect for trail adventures, commuting, or everyday riding. With confident handling, reliable components, and Trek’s proven build quality, it’s a brilliant choice for riders wanting performance and value.

✅ Frame: Trek Marlin 5 Gen 3 – M/L size (ideal for riders 5’7” – 5’11”)
✅ Drivetrain: Shimano CUES 9-speed – smooth, precise, and durable shifting
✅ Brakes: Tektro hydraulic disc brakes – powerful and consistent stopping in all conditions
✅ Condition: Excellent, well-maintained, and in perfect working order

Whether you’re hitting trails, exploring off-road paths, or using it as a dependable everyday bike, the Marlin 5 Gen 3 is built to handle it all.

Technical Information
  • Frame:Alpha Silver Aluminium, curved top tube, internal derailleur and dropper post routing, rack and kickstand mount, 135x5 mm ThruSkew
  • Fork:SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 100 mm QR, 100 mm travel
  • Shifters:Shimano U4000, 9-speed
  • Crankset:Prowheel C10Y-NW, 30T steel narrow-wide ring, 160 - 170 mm length
  • Cassette:Shimano LINKGLIDE LG300, 11-46, 9-speed
  • Chain:Shimano LG500
  • Front Derailleur:N/A
  • Rear Derailleur:Shimano CUES U4000
  • Pedals:VP-536 nylon platform
  • Rims:Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
  • 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
  • Tyres:Bontrager XT3 Comp, wire bead, 30 tpi, XXS: 26 x 2.35" XS,S: 27.5 x 2.40" M, ML, L, XL, XXL: 29 x 2.40"
  • Brakes:Tektro HD-M275 hydraulic disc (short reach levers on XXS, XS and S sizes)
  • Handlebars:Bontrager alloy, 31.8 mm, 5 - 15 mm rise, 690 - 750 mm width
  • Handlebar Grips:Bontrager XR Trail Comp, nylon lock-on
  • Headset:Semi-integrated, 1-1/8"
  • Stem:Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 35 - 70 mm length
  • Saddle:Bontrager Arvada, steel rails, 138 mm width
  • Seatpost:Bontrager alloy, 31.6 mm, 12 mm offset, 300 - 400mm length
  • Accessories:N/A
  • Weight:M- 15.10 kg / 33.29 lbs (with tubes)
Sizing Information
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