GT Aggressor Pro Mountain Bike Review: Best Beginners Bike

mens GT Aggressor Pro mountain bike

The GT Aggressor is our top choice if you want to buy a mountain bike for under $500. This model is a ’29er’, meaning the wheels are 29″ high, as opposed to the standard 27.5″ of most mountain bikes – a  29er can give you more speed and better overall traction.

The GT Aggressor comes in 3 models: GT Aggressor Comp (Basic model), GT Aggressor Sport which has disc brakes and the GT Aggressor Expert (Pro), which has hydraulic disc brakes.

GT Aggressor Main Features

GT has been building bikes since 1972, when they developed BMX frames – so they know a thing or two about frames. The frame is the most important bit of any model. The brakes can be changed out, as can the gears, tires, and seats, but if the frame gets busted, that is the end of it. The frame, in this case, is modelled after Triple Triangle tech.

It makes it stronger and a lot more durable as well. This is just one of the things that make this model so appealing. This kind of frame is not only tougher but also more responsive over rough spots because the components in the rear are stiffer.

GT Men's Aggressor Expert 29 Hardtail Bike 2021 Model
GT Aggressor Expert 29 Hardtail Bike 2021

The design has proven its value over the last two decades. It has become more of a trademark and is a very simplistic design.
You do get straight tubes with a little flare, plate dropouts and a large gusset that sits just underneath the down tube.

This is reminiscent of the Zaskar model in the nineties. The head tube is ring-reinforced and contains an entirely conventional headset. The placement of the cable is based on the shortest route possible. The rear gear and brake cables sit just beneath the top tube, and the cable for the front gear sits underneath the down tube. On the frame itself, there are two bottle bosses.

GT Aggressor Pro Wheels

We do have to mention that the wheels are a little more lightweight than normal. This is because of the reduced number of spokes – four less than is standard. The company says it is to reduce the weight but it does not make a huge difference, so it is probably more about saving costs.
It is not a huge deal, though; the wheel rims still feel solid and well-supported.

The Kendra tires are a nice addition here. With a blend of knobs and blocks, you can tear down hills and get a decent grip. It should be noted, though, that these are not full-grip tires. Take care when going around a corner or when cycling through the mud. They may not grip well enough for the real muddy patches.

GT Aggressor Pro – The Other Bits and Pieces

The handlebar is well-made and is nice and wide. It allows you to grip on tightly without risking cramping your hands. The seat post is a bit on the skinny side, but this is a good thing because it gives the rear of the bike a bit more give.

The seat can be micro-adjusted to get the perfect level of comfort for yourself. That said, you cannot expect as smooth a ride as you would get from a much more expensive bike. The transmission consists of your normal EZ-Fire shifters, and there are two lower-end Shimano mechs. The Tourney unit at the back works on a pulley system designed to make shifting lighter and easier.

We will leave it up to you to decide how much of a difference this makes, but there is no question that it helps to tidy the cable quite a lot.
The MegaRange cassette, in our opinion, is not great, but this is not a deal-breaker. A beginner in the field might appreciate the bottom gear that it provides.

GT aggressor brakesThe big niggle we have here is that the frame has no mounts to allow you to upgrade your brakes to disc brakes. The front suspension, provided by the SR Suntour Fork is made out of steel and not damped at all. It will work admirably well in terrain that is less demanding, but it is going to give a really unpleasant experience across really bumpy terrain.

The mudguard eyes and the rack indicate that this was designed more as a hybrid for lighter use.

How Comfortable is the GT Aggressor to Ride?

This is aimed at beginners rather than experienced riders. So, people who will be attempted easier trials and perhaps not spend as much time in the seat.

View Price on  

• Very responsive, easy to control and simple to navigate.
• Extremely good pricing.
• Features GT’s Triple Triangle frame.
• Contains some All Terra and some Shimano components – both of which are excellent brands.
• Responsive when it comes to rough terrain.
• Can also double as a commuter bike.

• Quality components have been used, but they are still the lower-end ones. So this is not a high-performance model by any stretch of the imagination.
• We felt that it was a bit heavy so not really a good option if you will be bike-packing.
• This will bore hardcore enthusiasts or those with a lot of experience to death.

GT aggressor Upgrades

We’ve been watching people do some cool upgrades with this mountain bike.  Because the standard bike is so good for the price, adding a new extra bits can make a huge difference.  Start with new tires, seat and handlebars for your first upgrades.

Check out this video from MT Trail Rider:

GT Aggressor Pro REVIEW // Your Mountain Bike Is Better Than You Think



GT Aggressor Pro – Our Final Verdict

This is a good offering. You get a lot of features for the money you pay, and it will last you well. It is, however, better suited for you if you are a casual hobbyist that is not looking at getting into competitions or more technical trails.

This is not the option to choose if you want to go tearing down the side of the mountain because the ride would be really uncomfortable, and the brakes might be a little iffy on corners. It can do double duty as a commuter bike as well, and that is a big plus, but this is really better suited to beginners. It looks cool, but there are limited opportunities to upgrade it, which will frustrate someone wanting the best out of their bikes.

Overall, it is a responsive model and a good choice when starting out. Just don’t expect to be able to use it for a double-black-diamond trail. If you want to do a lot of uphill rides, this is not the model to choose.

View Price on