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NEW 2020

Marlin 4

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$479.99 Model 21469

Marlin 4 is the perfect gateway to trail riding. It's ideal for new riders who want a mountain bike with knobby tires that can double as a rugged commuter. Disc brakes, front suspension, 21 speeds, and mounts for a rack and fenders 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 curbs on the way to class. Disc brakes, knobby tires, 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 modeled after our higher-end mountain bikes and built with a lightweight Alpha Silver Aluminum frame, mechanical disc brakes for increased stopping power in any weather conditions, and a suspension fork with 75mm 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 in Trek's mountain bike heritage and totally capable of taking on the trails. But it's an efficient daily rider, too. The rack and fender mounts make it a great choice for commuters who want to get a little rad on the way to class or the grocery store.

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 fender mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter
  4. Like every model in the Marlin family, it's backed by Trek's lifetime warranty

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Features

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Alpha Silver Aluminum, rack & fender mounts, 135x5mm QR
Fork SR Suntour M-3030, coil spring, preload, 100mm QR, 75mm travel
Wheels
Front Hub Formula DC-20, alloy, 6-bolt, 5x100mm QR
Rear Hub Formula DC-31, alloy, 6-bolt, 6/7/8 speed freewheel, 135x5mm QR
Rim Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve
*Spokes Size: XS , S , M , ML , L , XL , XXL
14g stainless steel
Size: XS , S , M , ML , L , XL , XXL
14g, stainless
*Tire Size: M , ML , L , XL , XXL
Bontrager XR2, 29x2.20'' front, 29x2.00'' rear (13.5 & 15.5'': 27.5x2.20'')
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''
Size: M , ML , L , XL , XXL
Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.00''
Drivetrain
Shifter Shimano Altus EF500, 7 speed
Front Derailleur Shimano Tourney TY500, 34.9mm clamp, top swing, dual pull
Rear Derailleur Shimano Tourney TY300, long cage, 34T max cog
Crank Shimano Tourney TY301, 42/34/24, 170mm length
Bottom Bracket VP BC73, 73mm, threaded cartridge
*Cassette Size: XS , S , M , ML , L , XL , XXL
Shimano TZ21 14-28, 7 speed
Size: XS , S , M , ML , L , XL , XXL
Shimano TZ500, 14-28, 7 speed
Chain KMC Z51
*Pedal Size: XS , S , M , ML , L , XL , XXL
Wellgo nylon platform
Size: XS , S , M , ML , L , XL , XXL
VP-536 nylon platform
Components
*Saddle Size: XS , S , M , ML , L , XL , XXL
Bontrager Evoke 1, steel rails
Size: XS , S , M , ML , L , XL , XXL
Bontrager Arvada, steel rails, 138mm width
*Seatpost Size: XS , S
Bontrager alloy, 27.2mm, 12mm offset, 330mm length
Size: M , ML , L , XL , XXL
Bontrager alloy, 27.2mm, 12mm offset, 400mm length
Size: M
Bontrager alloy, 27.2mm, 12mm offset, 360mm length
*Handlebar Size: XS , S , M , ML , L , XL , XXL
Bontrager Riser, 25.4mm, 30mm rise, 620mm width
Size: XS , S
Bontrager alloy, 31.8mm, 5mm rise, 690mm width
Size: M , ML , L , XL , XXL
Bontrager alloy, 31.8mm, 5mm rise, 720mm width
*Grips Size: XS , S , M , ML , L , XL , XXL
Bontrager Satellite Plus
Size: XS , S , M , ML , L , XL , XXL
Bontrager XR Endurance Comp, lock-on
*Stem Size: XS , S
Bontrager alloy, 25.4 mm clamp, 15-degree, 60 mm length
Size: M , ML , L , XL
Bontrager alloy, 25.4mm clamp, 10 degree, 90mm length
Size: XXL
Bontrager alloy, 25.4mm clamp, 10 degree, 110mm length
Size: XS
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length
Size: S
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length
Size: M
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length
Size: ML , L
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 80mm length
Size: XL , XXL
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 90mm length
Headset Semi-integrated, 1-1/8''
Brake Tektro MD-M280 mechanical disc, 160mm 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 300 pounds (136 kg).
  • 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 off Trek pre-production painted frames at time of publication. Weights may vary in final production.

    Sizing & fit

    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 Trek retailer.

     

    Rider Height

    Inseam

    All measurements provided in cm unless otherwise noted.

    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

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