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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 Alpha Silver Aluminium frame with internal routing to protect your cables and add to the bike's sleek look, 21 speeds, a wide range of gearing so you always have the right gear for your terrain, hydraulic disc brakes that feel smoother than mechanical disc brakes and a suspension fork with 100 mm of travel – that's the same amount favoured by most cross-country racers.
The final word
It’s built in Trek's MTB heritage, making it more than capable of taking on trail adventures. But it's also versatile, and Marlin 5 is a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorise and haul a load.
The Walkthrough
favorite_borderWhy you'll love it
- It's a real mountain bike that's also perfectly suited to daily commutes, rides around campus or just getting from A to B on any surface
- Smaller frame sizes (XS and S) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently
- It has separate brake and gear levers (a feature that's common on more expensive mountain bikes) so you can fine-tune the positioning for comfort
- Rack and kickstand mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter
- Like every Trek, it's backed by a lifetime warranty
Features
Internal cable routing
We route shift and brake cables through the frame to keep things clean and simple. And it looks great, too.
Rack mounts
Going for a long ride? Rack mounts make carrying accessories a breeze.
Smart Wheel Size
The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.
Extended size range
A wider range of sizes than the industry standard provides more options for everyone, from tallest to shortest and all those in between. Because everyone deserves a great ride.
G2 Geometry
Advanced frame geometry and a custom offset fork give our 29ers precise handling at low speed without compromising high-speed stability. We call it G2 Geometry, and it's why our 29ers handle better than anyone else's.
Alpha Silver Aluminium
Our proprietary lightweight aluminium is continuously cold extruded to a single-wall thickness for durable performance.
Specifications
-
Frameset
- Frame
- Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR
- Fork
- SR Suntour XCE 28, coil spring, preload, G2 Geometry w/51 mm offset on 29ers, 100 mm travel (13.5: 80 mm travel)
-
Wheels
- Front hub
- Formula DC20 alloy
- Rear hub
- Formula DC27 alloy
- Rims
- Bontrager Connection 32-hole double-walled
- Tyres
- Bontrager XR2, 29x2.20˝ front, 29x2.0˝ rear (13.5 & 15.5: 27.5x2.20˝)
-
Drivetrain
- Shifters
- Shimano Altus M310, 7-speed
- Front derailleur
- Shimano Tourney TY300
- Rear derailleur
- Shimano Tourney TY300
- Crank
- Shimano Tourney TY301, 42/34/24
- Bottom bracket
- Sealed cartridge, 73 mm
- Cassette
- Shimano HG200, 12-32, 7--speed
- Chain
- KMC Z51
- Pedals
- VP-536 nylon platform
-
Components
- Saddle
- Bontrager Arvada
- Seatpost
- Bontrager alloy, 2-bolt head, 31.6 mm, 12 mm offset
- Handlebar
- Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width (13.5: 690 mm width)
- Grips
- Bontrager XR Endurance Comp
- Stem
- Bontrager alloy, 31.8 mm, 7-degree, Blendr compatible
- Head set
- 1-1/8˝ threadless, semi-integrated, semi-cartridge bearings
- Brake set
- Tektro HD-275 hydraulic disc (13.5 & 15.5: Tektro HD-276 short reach lever)
-
Weight
- Weight
- M - 14.59 kg / 32.17 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).
Sizing & fit
Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.
Rider Height
Inseam
XS
137.0 - 155.0 cm
4'5.9" - 5'1.0"
64.0 - 73.0 cm
25.2" - 28.7"
S
153.0 - 162.0 cm
5'0.2" - 5'3.8"
72.0 - 76.0 cm
28.3" - 29.9"
M
161.0 - 172.0 cm
5'3.4" - 5'7.7"
76.0 - 81.0 cm
29.9" - 31.9"
M/L
170.0 - 179.0 cm
5'6.9" - 5'10.5"
80.0 - 84.0 cm
31.5" - 33.1"
L
177.0 - 188.0 cm
5'9.7" - 6'2.0"
83.0 - 88.0 cm
32.7" - 34.6"
XL
186.0 - 196.0 cm
6'1.2" - 6'5.2"
87.0 - 92.0 cm
34.3" - 36.2"
2XL
195.0 - 203.0 cm
6'4.8" - 6'7.9"
92.0 - 95.0 cm
36.2" - 37.4"
All measurements provided in cm unless otherwise stated.
| Frame size number | Frame size letter | Wheel size | A — Seat tube | B — Seat tube angle | Effective seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | F — Bottom bracket height | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 13.5 | XS | 27.5" | 34.3 | 73.5° | 73.5° | 9.0 | 69.3° | 54.3 | 29.2 | 5.8 | 43.8 | 4.2 | 8.8 | 104.9 | 69.8 | 37.6 | 56.5 |
| 15.5 | S | 27.5" | 36.8 | 73.5° | 73.5° | 9.0 | 69.3° | 55.5 | 30.2 | 4.8 | 43.8 | 4.2 | 8.8 | 106.6 | 72.4 | 38.5 | 57.4 |
| 17.5 | M | 29" | 41.9 | 71.9° | 73.0° | 9.0 | 69.5° | 60.2 | 31.1 | 5.8 | 43.8 | 4.2 | 9.3 | 110.0 | 74.8 | 41.8 | 60.2 |
| 18.5 | ML | 29" | 44.4 | 71.9° | 73.0° | 9.0 | 69.5° | 61.8 | 31.0 | 5.8 | 43.8 | 4.2 | 9.3 | 111.6 | 75.8 | 43.4 | 60.2 |
| 19.5 | L | 29" | 47.0 | 71.9° | 73.0° | 10.0 | 69.5° | 63.8 | 31.0 | 5.8 | 43.8 | 4.2 | 9.3 | 113.7 | 75.7 | 45.1 | 61.1 |
| 21.5 | XL | 29" | 52.1 | 71.9° | 73.0° | 12.0 | 69.5° | 65.9 | 31.0 | 5.8 | 43.8 | 4.2 | 9.3 | 115.9 | 76.9 | 46.6 | 63.0 |
| 23.0 | XXL | 29" | 55.9 | 71.9° | 73.0° | 12.0 | 69.5° | 67.3 | 31.1 | 5.8 | 43.8 | 4.2 | 9.3 | 117.3 | 80.4 | 48.0 | 63.0 |