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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 aluminium frame with internal routing to protect your cables and add to the bike's sleek look, 2x8 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. 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 (XXS, XS and S) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently
- The Marlin models in XXS to S frame sizes have a curved top tube and a lower standover height that makes it easier for smaller riders to mount and dismount
- 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
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Features
Will my bike have a curved top tube?
Smaller frames have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frame sizes have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.
Fit for every rider
Marlin comes in seven frame sizes to suit riders of any height, and Smart Wheel Size ensures you’re on the fastest wheel that fits. The smallest sizes even come with short-reach brake levers and narrower handlebars that give smaller riders better comfort and control.
Suspension lockout
Locked suspension means your fork remains inactive, increasing pedalling efficiency. Perfect for extended road sections where efficiency is more important than bump absorption.
Rack mounts
Going for a long ride? Rack mounts make carrying accessories a breeze.
Blendr stem
Bontrager stem technology lets you clip your gear directly to the stem for clean looks and maximum user friendliness.
Learn more
Internal cable routing
We route shift and brake cables through the frame to keep things clean and simple. And it looks great, too.
Rear kickstand mount
Chainstay mounts make it easy to install a rear kickstand that stays out of your way and supports bikes of all sizes. No more laying or leaning.
Specifications
*spec applies to all sizes unless otherwise noted
| Frame | Alpha Silver Aluminium, internal routing, chainstay disc-brake mount, rack and kickstand mount, 135x5 mm QR |
|---|---|
| *Fork |
Size:
XXS SR Suntour XCM 30, coil spring, lockout, preload, 100 mm QR, 100 mm travel, 26" wheel |
|
Size:
XS SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 80 mm travel |
|
|
Size:
S SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42 mm offset for 27.5" wheel, 100 mm QR, 100 mm travel |
|
|
Size:
M , ML , L , XL , XXL SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 46 mm offset for 29" wheel, 100 mm QR, 100 mm travel |
|
| Max compatible fork travel | 100mm (XS & S: 490mm axle-to-crown, M & up: 509mm axle-to-crown) |
| 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 |
| *Rim |
Size:
XXS Bontrager Connection, alloy, double-wall, 32-hole, 20 mm width, Schrader valve |
|
Size:
XS , S , M , ML , L , XL , XXL Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve |
|
| Spokes | 14 g stainless steel |
| *Tyre |
Size:
XXS Bontrager XR2 Comp, wire bead, 30 tpi, 26x2.20" |
|
Size:
XS , S Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20" |
|
|
Size:
M , ML , L , XL , XXL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20" |
|
| Max tyre size | Frame: 29x2.20" (XS & S: 27.5x2.4") Fork: See manufacturer |
| Shifter | Shimano Altus M315, 8-speed |
|---|---|
| Front derailleur | Shimano Altus M315, 34.9 mm clamp, top swing, dual pull |
| Rear derailleur | Shimano Altus M310 |
| *Crank |
Size:
XXS Prowheel TM-CY10, 36/22, 160 mm length |
|
Size:
XS , S , M Shimano M315, 36/22, 170 mm length |
|
|
Size:
ML , L , XL , XXL Shimano M315, 36/22, 175 mm length |
|
| Bottom bracket | Sealed cartridge, 73mm |
| Cassette | Shimano 8-speed, 12-32T |
| Chain | KMC Z8.3, 8 speed |
| Pedal | VP-536 nylon platform |
| Max. chainring size | 1x/2x: 34T, 3x: 42T |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
|---|---|
| *Seatpost |
Size:
XXS Bontrager alloy, 31.6 mm, 12 mm offset, 300 mm length |
|
Size:
XS , S , M Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length |
|
|
Size:
ML , L , XL , XXL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length |
|
| *Handlebar |
Size:
XXS , XS Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width |
|
Size:
S , M , ML , L , XL , XXL Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width |
|
| Grips | Bontrager XR Endurance Comp |
| *Stem |
Size:
XXS Bontrager alloy, 31.8 mm, Blendr compatible, 7 degree, 35 mm length |
|
Size:
XS Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 50 mm length |
|
|
Size:
S Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length |
|
|
Size:
M Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length |
|
|
Size:
ML , L Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length |
|
|
Size:
XL , XXL Bontrager alloy, 31.8 mm clamp, Blendr-compatible, 7-degree, 90 mm length |
|
| Head set | Semi-integrated, 1-1/8" |
| Brake | Tektro HD-M275 hydraulic disc, 180 mm rotor |
| Weight | M - 13.97 kg / 30.81 lbs |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
Sizing & Tech
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
Rider Height
Inseam
2XS
134.6 - 144.7 cm
4'5.0" - 4'9.0"
63.5 - 68.33 cm
25.0" - 26.9"
XS
145.0 - 154.6 cm
4'9.1" - 5'0.9"
68.58 - 73.41 cm
27.0" - 28.9"
S
155.0 - 164.75 cm
5'1.0" - 5'4.9"
73.66 - 78.49 cm
29.0" - 30.9"
M
165.0 - 172.5 cm
5'5.0" - 5'7.9"
78.74 - 81.03 cm
31.0" - 31.9"
M/L
172.75 - 180.0 cm
5'8.0" - 5'10.9"
81.28 - 86.11 cm
32.0" - 33.9"
L
180.25 - 187.75 cm
5'11.0" - 6'1.9"
86.36 - 88.65 cm
34.0" - 34.9"
XL
188.0 - 195.25 cm
6'2.0" - 6'4.9"
88.9 - 91.19 cm
35.0" - 35.9"
2XL
195.5 - 203.25 cm
6'5.0" - 6'8.0"
91.44 - 96.52 cm
36.0" - 38.0"
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 | XXS | 26" | 34.3 | 72.8 | 72.8 | 9 | 68.6 | 54.6 | 29 | 5.2 | 43.8 | 4.2 | 8.9 | 105.2 | 65.7 | 36.9 | 57 |
| 13.5 | XS | 27.5" | 34.3 | 73.5° | 73.5° | 9.0 | 69.3° | 54.4 | 29.2 | 5.8 | 43.8 | 4.2 | 8.8 | 104.9 | 65.8 | 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 | 68.6 | 38.5 | 57.4 |
| 17.5 | M | 29" | 41.9 | 71.9° | 73.0° | 9.0 | 69.5° | 60.2 | 31 | 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 | 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 | 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 | 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 |