Mountain Bikes

Trek 820

By: Mason Arnold

Last Update:

Trek 820 | 2020 Mountain Bike [Review]

Mountain Bike

Trek 820 review

The Trek 820 is a versatile mountain bike that can double as a hybrid bike. This bike can boast of its strong steel frame, semi-slick tires, a suspension fork, alloy wheels, 21-speed Shimano, and rack mounts.

Sporting a Bontrager saddle, Seatpost, and handlebars which is a trademark of most trek bicycles, the bike wasn’t just built for speed but also for comfort.

The Rack mount

The trek 820 features a mount where you can fix in a rack. During long journeys, you can put in some supplies in the rack for when you are hungry, especially when you go mountain biking. However, the mount on trek 820 is not only for racks, but you can fix in fenders, kickstand, lights, mudguards, or a fitness tracker, depending on your preference. You don’t have to worry about the load on the rack, as the bike is designed to carry it.

Suspension fork with a Shimano Drivetrain

This bike has a shock-absorbing fork, which enables the front wheel to move over bumps with ease. The Shimano drivetrain that comes featuring a Tourney version of the cassette, derailleurs, chain, and shifter all add to strengthen and support the bike during motion. The drivetrain is suitable for riders venturing into off-road biking for the first time as it gives them balance and support.

Trek custom steel frame

This bike is made of a custom steel frame, hence, the durability of the bike. This steel frame is a hand-carved stainless steel lug with fillet brazed tubing, and it is of high quality. For mountain biking, the best bike in terms of durability and comfort is the trek 820 because of this feature. The steel also strengthens the frame and eventually offers a smooth ride.


Frame; rack mount, custom steel, 135x5mm

Fork; coil spring, SR Suntour M-3030, QR of 100 x 5 mm, 75 mm travel

Front hub; QR of 100 x 5 mm, Formula FM21 alloy

Front hub; QR of 135 x 5 mm, 7-sp freewheel, Formula FM31 alloy

Tire size; 26×2.00inch

Shifter; 7-speed and Shimano Tourney EF41

Cassette; 7-speed, Shimano TZ500, 14-28

Chain; 7-speed, KMC Z7

Crank; Shimano Tourney TY301, 42/34/24, 170 mm length

Front derailleur; clamp diameter of 31.8 mm, dual pull, top swing, Shimano Tourney TY500

Rear derailleur; 34T max cog, long cage, Shimano Tourney TY300,

Pedal; vp-536 nylon platform

Saddle; Bontrager sport

Brake; ML-15.28kg/33.68lb with tubes

Stem (Xtra Small size – XS); Bontrager alloy, 60 mm length, 31.8 mm, 7-degree

Stem (Small size – S); Bontrager alloy, 31.8 mm, 80 mm length, 7-degree

Stem (Medium/Large size – M/L, L); Bontrager alloy, 90 mm length, 31.8 mm clamp, 7-degree

Stem (Xtra Large size – XL, XXL); Bontrager alloy, 31.8 mm clamp, 100 mm length, 7-degree


  • The bike is suitable for both off-road and road biking.
  • The trek 820 is very durable with a steel fram to boot.
  • It it not expensive.
  • The components need to be updated after a while.


Can disc frames be installed on this bike?

The mounts on this bike are not disc frame-enabled. So, no! Disc frames cannot be installed on trek 820.

Who can ride the trek 820?

Anybody who wants to give mountain biking a try (beginners).


The trek 820 is a great bike for mountain biking beginners, but it can also be used to travel different terrains from gravel paths to rough pavement and light trails. With features like semi-slick tires, alloy wheels, custom steel frame, suspension forks, and mounts, the bike offers a smooth and comfortable ride, durability, and versatility for newbies and professional riders alike.