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2020

Marlin 4

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Model 21469

Marlin 4 is the perfect gateway to trail riding. It's ideal for new riders who want a mountain bike with knobby tyres, that can double as a rugged commuter. Disc brakes, front suspension, 21 speeds and mounts for a rack and mudguards make this versatile ride an excellent entry point for new trail riders and campus commuters alike.

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It's right for you if...

You want an introductory mountain bike at an incredible price, but also want a commuter that's rugged enough to hop kerbs on the way to class. Disc brakes, knobby tyres and 21 speeds make Marlin 4 a great choice.

The tech you get

Marlin 4 has 21 speeds with a wide range of gearing for easy riding on varied terrain. It's modelled on our higher-end mountain bikes and built with a lightweight Alpha Silver Aluminium frame, mechanical disc brakes for increased stopping power in any weather conditions, and a suspension fork with 75 mm of travel – just enough to absorb the big bumps and keep you cruising.

The final word

Marlin 4's greatest gift is its versatility. It's built according to Trek's mountain bike heritage and is totally capable of taking on the trails. But it's an efficient daily rider, too. The rack and mudguard mounts make it a great choice for commuters who want to get a little rad on the way to class or the shops.

The Walkthrough

favorite_borderWhy you'll love it

  1. 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
  2. The flat mountain-style handlebar and disc brakes keep you in control, on or off the trail
  3. Rack and mudguard mounts make it easy to accessorise, so your mountain bike can double as a rugged commuter
  4. Like every Trek, it's backed by a lifetime warranty


Features

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Alpha Silver Aluminium, rack and mudguard mounts, 135x5 mm QR
Fork SR Suntour M-3030, coil spring, preload, 100 mm QR, 75 mm travel
Wheels
Front Hub Formula DC-20, alloy, 6-bolt, 5x100 mm QR
Rear Hub Formula DC-31, alloy, 6-bolt, 6/7/8-speed freewheel, 135x5 mm QR
Rim Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve
Spokes 14 g stainless steel
Tire Bontrager XR2, 29x2.20'' front, 29x2.00'' rear (13.5 & 15.5'': 27.5x2.20'')
Drivetrain
Shifter Shimano Altus EF500, 7-speed
Front Derailleur Shimano Tourney TY500, 34.9 mm clamp, top swing, dual pull
Rear Derailleur Shimano Tourney TY300, long cage, 34T max cog
Crank Shimano Tourney TY301, 42/34/24, 170 mm length
Bottom Bracket VP BC73, 73 mm, threaded cartridge
Cassette Shimano TZ21 14-28, 7 speed
Chain KMC Z51
Pedal Wellgo nylon platform
Components
Saddle Bontrager Evoke 1, steel rails
*Seatpost Size: XS , S
Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length
Size: M , ML , L , XL , XXL
Bontrager alloy, 27.2 mm, 12 mm offset, 400 mm length
Size: M
Bontrager alloy, 27.2 mm, 12 mm offset, 360 mm length
Handlebar Bontrager Riser, 25.4 mm, 30 mm rise, 620 mm width
Grips Bontrager Satellite Plus
*Stem Size: XS , S
Bontrager alloy, 25.4 mm clamp, 15-degree, 60 mm length
Size: M , ML , L , XL
Bontrager alloy, 25.4 mm clamp, 10-degree, 90mm length
Size: XXL
Bontrager alloy, 25.4 mm clamp, 10-degree, 110 mm length
Headset Semi-integrated, 1-1/8"
Brake Tektro MD-M280 mechanical disc, 160 mm rotor
Weight
Weight M - 14.10 kg / 31.08 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).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production.

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

All measurements provided in cm unless otherwise stated.

Frame size number Frame size letter Wheel size A — Seat tube B — 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 in XS 27.5" 34.3 73.5° 9.0 69.5° 54.3 29.2 5.8 43.8 4.4 8.5 104.9 70.5 37.6 56.5
15.5 in S 27.5" 36.8 73.5° 9.0 69.5° 55.5 30.2 4.8 43.8 4.4 8.5 106.6 72.8 38.5 57.4
17.5 in M 29" 41.9 73.5° 9.0 69.5° 59.5 31.1 5.8 43.8 5.1 8.3 110.9 74.3 41.8 59.8
18.5 in ML 29" 44.4 73.5° 9.0 69.5° 61.1 31.1 5.8 43.8 5.1 8.3 112.5 75.0 43.4 59.8
19.5 in L 29" 47.0 73.5° 10.0 69.5° 63.1 31.1 5.8 43.8 5.1 8.3 114.5 74.7 45.1 60.8
21.5 in XL 29" 52.1 73.5° 12.0 69.5° 65.2 31.1 5.8 43.8 5.1 8.3 116.7 75.0 46.6 62.6
23 in XXL 29" 55.9 73.5° 13.5 69.5° 67.0 31.1 5.8 43.8 5.1 8.3 118.6 78.3 48.0 64.1

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