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Top 5 Best GT Mountain Bikes

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Since their founding by Gary Turner in Southern California in 1972, GT Bikes have remained true to their BMX and mountain bike heritage. GT mixes performance with durability and is still considered one of the best brands in the woods. There are GT mountain bikes for the newest rider and the most seasoned professional.

There are many bikes referred to as mountain bikes, but they aren't all built for regular off-road riding. True mountain bikes are capable of many types of riding. Having said that, you'll want to buy a bike that best suits the type of riding that you do most of the time. Hardtails are fast and agile, but they won't handle the tight trails and big drops like a full suspension bike. There are no bikes that look as sinister as a full-on downhill bike, but they are designed for serious gravity runs and are not well suited for much else.

GT Mountain Bikes FAQ

1. What Is a Mountain Bike?

2. Are There Different Kinds of GT Mountain Bikes?

3. What Components Are Important?

How We Chose the Top 5 Best GT Mountain Bikes

We began by putting together a representative group of GT mountain bikes from entry level to expert. We highlighted the key features of each model. Then we listed the pros and cons and price for each bike, which should give you an idea if this bike is the best choice for how and where you expect to be riding. Remember, the best bike for you might not be the best bike for someone else.

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Because they are from the same manufacturer, some things remain the same for all of these GT mountain bikes. After we present our reviews of all five bikes, we'll let you know where they can be purchased and what the GT Warranty is on all the bikes.

Overall Price Range of GT Mountain Bikes

The price range of these GT mountain bikes starts with the model GT calls its "sport utility bike", the GT Aggressor Sport. It's their entry level bike and the first bike in the line which has all the components we think any mountain bike should have. The GT Force Carbon Expert is their high end all mountain bike just a step below what GT considers their professional level bikes. These GT mountain bikes start with a basic aluminum frame and take us right up to a lightweight carbon mainframe. Compare the bikes on our list, and you will see the same kind of progression in all the other components such as drivetrain, brakes, and suspension. These GT mountain bikes offer the basic equipment for the beginner right up to the high-end specs for the most dedicated shredder.

GT Mountain Bikes We Reviewed

  • GT Aggressor Sport
  • GT Karakoram Comp
  • GT Avalanche Comp
  • GT Zaskar  Carbon Pro 29
  • GT Force Carbon Expert.  

GT Aggressor Sport

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Key Features

This beginner mountain bike has a durable 6061 aluminum frame with a 75mm Suntour front shock and agile 27.5 in. wheels. It has a wide-ranging 3x7 Shimano drivetrain with mechanical disc brakes. It is everything you need to get off the bike path and into the woods.


GT mountain bikes are sold through their network of retailers. 


  • Triple Triangle frames have stiffer rear components
  • Very affordable and easy to upgrade
  • Micro-adjust saddle for comfort and sizing


  • Solid but heavy for climbing
  • Decidedly entry level components
  • Front shock has only limited travel for bigger bumps or larger riders

GT Karakoram Comp

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Key Features

The Karakoram Comp has a light and durable aluminum frame with the same geometry as the elite performance GT mountain bikes. This is the perfect 29er for a new rider wanting to get their first capable trail bike. A very nice Shimano drivetrain, the 9 speed Deore derailleur is "bullet-proof." The hydraulic brakes are a nice upgrade at this price point. It has a solid Suntour shock with additional travel at 100mm, and the lockout gives the rider a firm, fast ride on hardpack and pavement.


GT mountain bikes are sold through their network of retailers. 


  • More shock travel with lockout        
  • Hydraulic Disc Brakes
  • 3x9 Acera/Deore drivetrain


  • Cheap pedals and grips
  • Better bikes available at this price
  • Can’t handle heavy-duty trails confidently

GT Avalanche

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Key Features

This bike is one of the longest-running GT models. It has a high-end aluminum frame and geometry similar to the Zaskar. You will be out riding hard without busting your wallet. The Avalanche has a 100mm Suntour fork with a lockout and Tektro hydraulic disc brakes. A wide range 3x9 Shimano drivetrain makes this bike fast on flats and a strong climber.


GT mountain bikes are sold through their network of retailers. 


  • Nicely spec'd at an affordable price          
  • Strong, light WTB double walled wheels
  • Wide range of gearing for all terrain riding


  • Wide, flat handlebar a problem on tight wooded trails
  • Saddle uncomfortable on longer more technical rides
  • Lower bottom bracket of the Avalanche limits clearance on the harsher trails

GT Zaskar Carbon Pro 29

GT 29" M Zaskar Crb Comp 2019 Complete Mountain Bike

Key Features

The Zaskar Carbon Pro is the only bike to have won World Cups in Cross Country, Downhill, Slalom, and Trials. This bike will handle everything you throw its way. It is built on a Carbon Frame with Triple Triangle™ Frame Construction with 12x142mm Thru Axle Dropouts. Up front is a RockShox Sid RLC, 100mm DebonAir with a remote lockout on the handlebar. The drivetrain is a 1x12 SRAM  X01 Eagle, 10-50, 12-speed. SRAM  Level TL hydraulic disc brakes provide all the stopping power you'll need.


GT mountain bikes are sold through their network of retailers. The Zaskar Carbon Pro is not available in the US. 


  • Carbon frame is stiff and crazy light    
  • Pro means Pro, this is a full on race bike            
  • Remote lockout is a great performance feature    
  • 1x12 Drivetrain is smooth, fast with no dropped chains


  • Super stiff frame can be tiring
  • Handlebars may be a bit narrow for some
  • Not designed for relaxing all-day epics, it is a race bike

GT Force Carbon Expert

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Key Features

The Force Carbon Expert is a  27.5  This mountain bike is built for good times on rough terrain. The frame is a super light carbon front and alloy rear frame.  GT specs RockShox Debonair suspension front and rear. There is 150mm of wheel travel in the rear and 160mm of compression in the front.


GT mountain bikes are sold through their network of retailers. GT Force Carbon Expert is advertised at $4,200


  • Reduced weight and improved reliability with redesigned rear suspension 
  • Rear tracks well over bumps, especially when pedaling
  • Includes a dropper seat post
  • Heavier riders will appreciate the robust frame


  • Very low handlebar height affects handling
  • Shorter reach with the same amount of travel, less stability
  • Not very "pedal efficient"

Where to Buy GT Mountain Bikes

GT is committed to working with your local bike shop. Whether it's an independent retailer or a larger chain store, they've partnered with the best in the industry. The bikes are sold only through authorized retailers. GT will not sell or ship directly to any consumer or unauthorized retailer. Here is the link to help locate your nearest GT retailer:  https://dealerlocator.gtbicycles.com/

GT Warranty

GT frames, 2015 model year and newer, are warranted by GT Bicycle Corporation against manufacturing defects in materials and/or workmanship for the lifetime of the original owner. GT frames for Gravity, Freeride, and Dirt Jumping bikes (such as Fury, Sanction, Distortion. Ruckus, and La Bomba) are warranted against manufacturing defects in materials and/or workmanship for a period of three (3) years from the date of original retail purchase.

All other components, frame fixtures, and finishes (paint and decals) are warranted against manufacturing defects in materials and/or workmanship for a period of one year from the date of the original retail purchase. Suspension forks (other than those made by GT) are not covered by this limited warranty but are separately covered by the stated warranty of their manufacturer.

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The Verdict

GT mountain bikes, over the years, have become synonymous with innovative design, durability, and winning. They have also managed to be the lowest priced entry in their category. And, so it is with the bikes we have reviewed here. The Aggressor Sport is one of the most durable and reasonably priced entry level mountain bikes on the market. Likewise, the Karakoram is a solid cross-country hardtail with great components for the money. For riders looking for more agility and speed on technical trails, the Avalanche, one of the longest-running GT models, has more than kept pace with the competition. When a rider steps up to a carbon frame, there is no faster or more versatile race bike for the money than the Zaskar. And finally, the all-mountain Force Carbon Expert is priced much lower than comparable bikes from other manufacturers. So, the verdict is that wherever and however you plan to ride, each of these GT mountain bikes represents an outstanding value in each category. Each one is worthy of your consideration depending on the your level of experience at any given time.

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