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Bike Trek Marlin 5 Gen 3 27.5 2025. Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. It features a trail-savvy frame with a suspension fork, 9-speed Shimano CUES shifting and mounts for a rack and kickstand that make it an ideal choice for trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike.
It's right for you if...
You're new to the trail and you’re looking for a real mountain bike that doubles as a commuter – and you want it all at an exceptional value.
The tech you get
A lightweight aluminium frame with internal routing to protect your cables and add to the bike's sleek look, an upgraded 9-speed Shimano CUES drivetrain, a wide range of gearing so you always have the right gear for your terrain, powerful hydraulic disc brakes and a terrain-smoothing suspension fork with a lockout.
The final word
The Marlin 5 is a great ride for all your adventures. It's also versatile and a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorise and haul a load.
Why you'll love it
- The Marlin Gen 3 gives you serious trail capability, with big tyre clearance and slack, confidence-boosting geometry that keeps you stable from singletrack to city
- Rack and mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter
- Its ThruSkew system is safer, simpler and stronger, plus it makes removing the rear wheel easy for flat fixes in a hurry
- Internal routing makes it easy to add a dropper post that lets you lower your saddle on the fly for more confident descending
- Marlin models in sizes XXS and XS have a curved top tube and lower standover height that makes it easier for smaller riders to mount and dismount
BIKE SPECS
*Please note – spec applies to all sizes unless listed separately
Frameset
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*Frame |
Size: XXS , XS |
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Size: S , M , ML , L , XL , XXL |
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*Fork |
Size: XXS |
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Size: XS |
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Size: S |
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Size: M , ML , L , XL , XXL |
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Max compatible fork travel |
120mm, XXS: 80mm |
Wheels
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Hub front |
Formula DC-20, alloy, 6-bolt, 5x100 mm QR |
|
Hub rear |
Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5 mm QR |
|
Skewer rear |
173x5mm QR |
|
Rim |
Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve |
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*Tyre |
Size: XXS |
|
Size: XS , S |
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Size: M , ML , L , XL , XXL |
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|
Max tyre size |
Frame: 29x2.40" (XXS: 26x2.40", XS & S: 27.5x2.40"), Fork: See manufacturer |
Drivetrain
|
Shifter |
Shimano U4000, 9-speed |
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Rear derailleur |
Shimano CUES U4000 |
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*Crank |
Size: XXS , XS |
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Size: S , M , ML , L , XL , XXL |
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|
Cassette |
Shimano LINKGLIDE LG300, 11-46, 9-speed |
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Chain |
Shimano LG500 |
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Pedal |
VP-536 nylon platform |
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Max. chainring size |
1x: 34T, 2x: 36/22 |
Components
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*Seatpost |
Size: XXS |
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Size: XS , S , M |
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Size: ML , L , XL , XXL |
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*Handlebar |
Size: XXS , XS |
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Size: S |
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Size: M , ML , L , XL , XXL |
|
|
Grips |
Bontrager XR Trail Comp, nylon lock-on |
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*Stem |
Size: XXS , XS , S |
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Size: M , ML , L |
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Size: XL |
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|
Size: XXL |
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Head set |
Semi-integrated, 1-1/8" |
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Brake rotor |
Tektro, 6-bolt, 160mm |
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*Brake Set |
Size: XXS , XS , S |
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Size: M , ML , L , XL , XXL |
|
|
Rotor size |
Max brake rotor sizes - Frame: 180mm (XXS: 160mm), Fork: see fork manufacturer |
Weight
|
Weight |
M - 15.10 kg / 33.29 lbs (with tubes) |
|
Weight limit |
This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
- WHEEL
- 27.5
- FRAME TYPE
- FRONT SUSPENTION
- GENDER
- UNISEX
- DRIVETRAIN
- MECHANIC
- CHAINRINGS
- SINGLE
- SPEEDS
- 9
- BRAKES
- DISC HYDRAULIC
- CYCLING STYLE
- MTB
- RIDER STYLE
- XC SPORT
- CATEGORY
- MOUNTAIN BIKES
- Season
- 2025
- BIKE MODEL
- TREK MARLIN
- FRAME MATERIAL
- ALUMINIUM
23150720XSBLK
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