Trek 820 Cross Country Mountain Bike

Item No. 1643-532218


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Product Description

The Trek 820 Mountain Bike is an affordable mountain bike option and a great choice for beginners who are interested in mountain biking but also want a hybrid bike that works on city streets. The Trek 820 features a strong steel frame and 21-speeds for reliable performance on a changing terrain. The Trek 820 mountain bike features a suspension fork that helps to absorb shock for a more comfortable ride, while the semi-slick tires roll well on both pavement and trails. Plus, the Trek 820 features built-in mounts for easy customization. If you're looking for a versatile mountain bike, try the Trek 820 Mountain Bike for your next ride. 

  • Steel frame for durability 
  • 21-speed Shimano drivetrain
  • Semi-slick tires and durable alloy wheels
  • Suspension fork takes the edge off bumps
  • Great on city streets, gravel paths, and light singletrack
  • Mounts can be accessorized with racks, fenders, lights, a kickstand, and more
  • Bike Weight: 33.68 lbs. (ML)
  • Weight Limit: 300 lbs. (bike + rider + cargo)
Frameset Specs:
  • Frame:Trek Custom Steel, rack mounts, 135x5mm QR
  • Fork: SR Suntour M-3030, coil spring, 100x5mm QR, 75mm travel
Wheel Specs:
  • Front Hub: Formula FM21 alloy, 100x5mm QR
  • Rear Hub:Formula FM31 alloy, 7sp freewheel, 135x5mm QR
  • Rim: Bontrager AT-550, alloy, 36-hole, schrader valve
Drivetrain Specs:
  • Chain: KMC Z7, 7-speed
  • Shifter: Shimano Tourney EF41, 7-speed
  • Cassette: Shimano TZ500, 14-28, 7-speed
  • Crank: Shimano Tourney TY301, 42/34/24, 170mm length
  • Rear Derailleur: Shimano Tourney TY300, long cage, 34T max cog
  • Front Derailleur: Shimano Tourney TY500, 31.8mm clamp, top swing, dual pull
  • Grips: Bontrager SSR
  • Saddle: Bontrager Sport
  • Headset: 1-1/8'' threadless
  • Brake: Tektro alloy linear-pull
  • Seatpost:
    • XS, S: Bontrager alloy, 29.2mm, 12mm offset, 300mm length
    • M/L, L: Bontrager alloy, 29.2mm, 12mm offset, 330mm length
    • XL: Bontrager alloy, 29.2mm, 12mm offset, 400mm length
  • Handlebar:
    • XS, S: Bontrager alloy, 31.8mm, 15mm rise, 660mm width
    • M/L, L, XL: Bontrager alloy, 31.8mm, 15mm rise, 690mm width
  • Stem:
    • XS: Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length
    • S: Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 80mm length
    • M/L, L: Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 90mm length
    • L: Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 100mm length
Size XS S M/L L XL 2XL
Rider Height 4'5.9 - 5'1.0" 5'0.2 - 5'5.6" 5'5.2" - 5'10.5" 5'9.7" - 6'2.0" 6'1.2" - 6'5.2" 6'4.8" - 6'7.9"
Inseam 25.2 - 28.7" 28.3 - 31.1" 30.3 - 33.1" 32.7 - 34.6" 34.3 - 36.2" 36.2 - 37.4"
Frame Size 13" 16" 18" 19.5" 21" 22.5"
Wheel Size 26" 26" 26" 26" 26" 26"

Additional Information

Customer Reviews

5.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Good bike for the money.
I've put about 240 miles on this bike in a month on mostly gravel roads, So far it is working great for me. I prefer the linear pull brakes over disc because they work great and are simpler to maintain. Shifting works well, I only had to do minor adjustments so far. It's not a full blown off road bike, but it's great for what I use it for. The only issue I've had, is the quick release, seat post clamp didn't hold the seat post securely. And I wish the front fork was a bit better quality. Over all, I am quite satisfied with this bike. Great value for the money.
Out on the gravel.
Out on the gravel.
September 21, 2020
7 months ago
Rated 5 out of 5
Great bike
Our 14 year old son who is 5’7” loves this bike - both the look of it and how it rides.
August 19, 2020
8 months ago
Rated 5 out of 5
this seems like a very well-built bike overall. The frame is very light but sturdy. And the components seem to be well built seems like a pretty good value
July 18, 2020
9 months ago