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  • 820
2020

820

/
$399.99 Model 17027

820 is an excellent entryway to a world of off-road adventures. It's the most affordable mountain bike in our lineup and the ideal choice for beginners who are interested in the MTB life but also want a hybrid bike that's as equally suited to light trails as it is to potholed city streets.

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It's right for you if...

You're ready to try your hand at mountain biking to see if you fall in love, and want a bike you can ride wherever you choose. You plan to ride all types of terrain, from city streets to gravel paths and light singletrack.

The tech you get

820 has a strong steel frame, a reliable 21-speed Shimano drivetrain, semi-slick tires that roll well on pavement and trails, durable alloy wheels, and a suspension fork that takes the edge off bumps. Plus, it has mounts so you can accessorize with racks, fenders, lights, a fitness tracker, a kickstand, and more.

The final word

820 is a great bike for anyone testing the waters of off-road riding. It's versatile, durable, and works well on rough pavement, light trails, or both.

The Walkthrough

favorite_borderWhy you'll love it

  1. 820 is a great bike at an even better price, and it lets you explore off-road riding without the giant price tag that comes with higher-end mountain bikes
  2. The high-volume mountain bike tires and suspension fork take the edge off rough roads and trails
  3. Rack, fender, and kickstand mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter

How to: Wash your bike

A clean bike is a happy bike, but washing your ride is a bit more complicated than a quick spray with the hose or a joyride through your local car wash. Follow our step-by-step process and you’ll learn the dos and don’ts of keeping your bike in tip-top shape!

Watch the video

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Features

Rack mounts

Going for a long ride? Rack mounts make carrying accessories a breeze.

Trek custom steel frame

Rugged steel strengthens the frame and smoothes the ride.

Suspension fork

Shock-absorbing fork allows the front wheel to travel up and down over bumps while the handlebars stay steady, for a comfortable, controlled ride.

Specifications

  • Frameset

    Frame
    Trek Custom Steel
    Fork
    SR Suntour M-3030, coil spring, 75mm travel

  • Wheels

    Front hub
    Formula FM21 alloy
    Rear hub
    Formula FM31 alloy
    Rims
    Bontrager AT-550 36-hole alloy
    Tires
    Bontrager LT3, 26x2.00˝

  • Drivetrain

    Shifters
    Shimano Tourney EF41, 7 speed
    Front derailleur
    Shimano Tourney TY500
    Rear derailleur
    Shimano Tourney TY300
    Crank
    Shimano Tourney TY301, 42/34/24
    Bottom bracket
    Sealed cartridge
    Cassette
    Shimano TZ21, 14-28, 7 speed
    Chain
    KMC Z51
    Pedals
    Wellgo nylon platform

  • Components

    Saddle
    Bontrager Sport
    Seatpost
    Bontrager SSR, 2-bolt head, 29.2mm, 12mm offset
    Handlebar
    Bontrager alloy, 31.8mm, 15mm rise
    Grips
    Bontrager SSR
    Stem
    Bontrager alloy, 31.8mm, 7 degree, Blendr compatible
    Headset
    1-1/8˝ threadless
    Brakeset
    Tektro alloy linear-pull

  • Weight

    Weight
    ML - 15.28 kg / 33.68 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 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
13 in XS 26" 33.0 74.0° 11.0 70.5° 52.4 28.7 0.0 43.0 4.0 7.6 101.9 70.5
16 in M 26" 40.6 73.5° 11.0 70.5° 55.0 29.1 0.0 43.0 4.0 7.6 104.0 73.8
18 in ML 26" 45.7 73.5° 13.0 70.5° 56.5 29.3 0.0 43.0 4.0 7.6 105.7 77.2
19.5 in L 26" 49.5 73.0° 15.0 70.5° 58.0 29.3 0.0 43.0 4.0 7.6 106.8 79.9
21 in XL 26" 53.3 73.0° 17.0 70.5° 59.0 29.3 0.0 43.0 4.0 7.6 107.9 82.7
22.5 XXL 26" 57.2 72.5° 19 70.5° 60.0 29.5 0.0 43.0 4.0 7.6 108.4 85.7

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