Guerrilla Gravity Megatrail Review: All of the Metal and More

Although this website is fat-tire themed, I have a cycle-love for most, if not all mountain bikes including my Guerrilla Gravity Megatrail. In January of 2021 I ordered my first all-mountain/enduro sized bike. Guerrilla Gravity builds some awesome four-bar bikes and a stout and wicked hardtail, the Pedalhead.

With both a headset and rocker link providing dual suspension positions, I saw an absolutely fun bike that was built to last through everything my hefty stature could throw at it and remain versatile from park riding to trail riding. It has been two years owning the bike. I have never enjoyed mountain biking more in my 20 years of avid cycling. Let’s be honest, 2.8 wide tires are still pretty fat!

The Megatrail is composed of a stout carbon frame and aluminum rear triangle. Rolling 27.5 wheels on my build provides a nimble bike that can be thrown around but can also hammer through chunder and hold a straight line. This bike sees mostly bike park riding with the occasional xc ride through the summer. I have both a hard tail and fat bike for most other types of riding.  My current setup and how I ride it most often is with a 170mm Fox Factory 36 in the front (I might upgrade to the 38) and a Fox Float DPX2 at 155mm in the rear. I can extend the back travel to 165mm, but I have found the shorter setting to be plenty of travel for the majority of my rides, including the bike park.

Between the stout frame and boost spaced wheels, it feels great to smash the Megatrail through everything. I am a big dude and riding over the years has shown me that bikes and wheels can flex pretty hard. No one likes that feeling and the Mega reassures me of my line choices and adds confidence to my rides.

I may have built my heavy metal inspired steed up with some more sensible components to save on cost, but I don’t feel that I shorted myself performance wise. My Megatrail is ready to “run to the hills” and will be with me for life. Unfortunately, there are rumors on social media that Guerrilla Gravity might be shuddering their doors.

Read on to learn more……


Assembly of Parts

  • Revved Carbon front triangle paired with an aluminum rear end. 10/10
  • Component build is functional but cost effective. 8/10
  • Fox Factory 36 is awesome. 9/10
  • The ride feel is stout and reliable both up and down. 10/10
  • It’s not light – 35.6 lbs with my toolkit and water. 6/10
  • Cost and comparison to others are stellar 9/10


Price: $4,995+

            Frame only option available

Buy at

Framed In -The Guerrilla Gravity Megatrail

Mountain biking is rough on equipment. There is no way around that. Rocks, jumps, variable soil conditions, etc, all do a number on parts. For years I knew I needed a bigger bike for some of the riding I was doing and finally flying down a mountain on a stout steed like the Mega let me know I had picked a good one. The GG Megatrail I had built has mostly mid-level components, but I did go all out on a few bits.

With all-mountain to enduro levels of travel, the Mega is a nimble yet stout beast anywhere except deep snow and the oceans. Responsive, comfortable climbing leads to hair raising, rock boosting, berm shralping heaven. If you can’t tell, the GG is my favorite bike in my fleet.

With an older Pivot, full-suss fat bike, and a big fork travel hardtail in addition to the GG, I can safely cover the majority of subcategories within the world of mtb. I wouldn’t mind having a downhill bike or dirt jumper though! The Mega has mostly been ridden at bike parks but I have done a fair bit of trail riding with it. I try to give attention to all my steeds (the Pivot is neglected…but it’s old) but the last few summers were mostly spent aboard this heavy metal ripper.

Frame Details

GG has built an awesome carbon frame with a headset cup that can be oriented in a more trail-oriented position or a slack DH position. The aforementioned aluminum rear end also has a “20 second” bolt change that shifts the travel from 155mm to 165mm. The headtube position changes from …. to ….. and provides geo angles for long trail days or long bike park days. Frankly, I like the shorter travel 155 position. Even with my hefty stature I can’t find bottom on the suspension and it is prepared to go fast. As it says on the top tube, “I like goin’ fast!”

The GG has a four-bar suspension design that is supportive off the top end of the travel but allows the bike to find that plush feeling we all love in the middle without bottoming or wallowing in it. This bike is a great climber for being as big as it is and that is attributed to the rear end design. Both settings change the handling, but the overall feel is playful, stout and responsive.

The frame has a front triangle made from GG’s own Revved carbon (designed and built in house in the US) has all of the geo specs of a current, big travel ripper. The long, smooth lines of the top tube and downtube have clean transitions in the tube junctions that blend one tube to another. I bought the frame while there was only one colorway option but I love it and have installed several custom bits to make it unique.

Frame Mods

The bike was designed around 148mm boost spacing in the rear and can fit 27.5 tires up to 2.8 inches and the newest models are sold as an MX build with a mullet setup. These bikes are absolutely cool! They come with several features, including being able to swap out rear ends/shocks to match their other FS models. The best feature is that these bikes are stout and versatile. Already, one can see why this is my favorite bike.


Components Are Part of the Puzzle

My big mountain rig is outfitted with massive Magura MT7 brakes and 200mm rotors, an Eagle drive train and some mostly stellar suspension. I could have splurged on a Fox X2 Factory with beautiful Kashima, but I didn’t. I chose the DPX2 instead. So far, it’s been easy to setup, reliable, bottomless, and cost effective. I haven’t even tried volume spacers with it, nor have I needed to. This bike has seen a solid 2 years of riding on these components, and they have stood up to the rigors of general riding, not to mention copious amounts of DH laps. I may someday try a different shock on my all-mountain rig, but I am content for now. An EXT Storia is quite tempting though.


I have always liked Shimano XT or XTR brakes. They had been the most reliable for me over years of riding. When I chose Magura for my Megatrail it was mainly because they use the same mineral oil and I like the feel of mineral oil brakes vs DOT. I understand some people have early onset brake fade with Maguras, but I have yet to experience that. I will be honest they should be due for a maintenance bleed, but all I have done is change brake pads. They have remained consistent and reliable. I did break a lever and had to replace it but that was an easy job.


The fork I chose for the Megatrail is the Fox 36 Factory setup at 170mm. I struggle with front suspension that is both plush but can ride high in the travel. It just makes sense to ride bigger forks because I am a hefty dude. The 36 has been upgraded with matching blue decals, has the Grip2 damper, both HSC and LSC settings in addition to rebound along with the buttery smooth feel of Kashima coating. I wouldn’t mind throwing a 38 on there, but the bike feels great both up and down with the Fox 36.

 I bought this fork to hammer rocks, jumps, roots, and berms. It is the best fork I have ever purchased. It stays high in its travel, is super plush on big hits, and rebounds well. I do run compression high on all of my bikes so loose chatter and smaller rock gardens can feel a little harsh on the top end. It still feels stout compared to any of my other bikes.

As priorly mentioned, the rear shock is a Fox DPX2 Performance. It was easy to use and reliable. I can’t tell that I have ever bottomed it out but use all of the travel on nearly every ride. It doesn’t wallow in the mid-stroke and remains plush in feel. I like that I can add compression for jump oriented trails and open it up for rocks. The shock in conjunction with the rear end of the frame is stable, nimble, comfortable, and predictable. Yes. All of the things.


I do get to do lift-assisted laps in the summer with this capable steed, but the rest of the year is pedal time on it. The drivetrain is currently a 1×12 GX Eagle. Before receiving the bike, I bought a star-ratchet DT Swiss freehub with 54 teeth of engagement. Yes. It’s loud. I love it! Before receiving the bike, I bought a new Shimano cassette to match the gearing and the HG compatible freehub. I immediately ditched the Sram XD driver. I have broken 3 of them on two other bikes and have had to convert all of my wheels back to HG freehubs. This mixed system of parts works tremendously well and other than the Sram GX derailleur coming out of the hanger on the Lithium trail in Jackson Hole, everything has worked flawlessly.


The DT Swiss M1900 wheelset has been reliable thus far. These “budget” aluminum rims have an 30mm internal rim width and weigh 950g and 1090g for the front and rear respectively. They have remained true and feel stout. I don’t notice any flex or lateral movement. Like many others, I have run Maxxis tires for years now. With a 2.8×27.5 Minion DHF/DHRII combo, this bike likes to grip corners and rocks.

The remainder of parts consists of a 170mm SDG dropper post, SDG/Deity saddle, Deity bar, I9 stem, custom swappable headset, and seat post collar that shows the dial being turned to 11. To finish everything off, the frame has that top tube decal that states “I like goin’ fast”. That little note makes me smile every time I find myself in that state of flow that we all venture to seek out.

Things To Consider

The Megatrail now comes with a mixed wheel build. I prefer “smaller” wheels for their nimble nature. I intended to have this bike as mostly a park bike but with the ability to shred some long pedal days. Honestly, it pedals up the mountain better than I ever would have imagined. It’s not the lightest all-mountain steed in the wild, but it does the job. GG has also provided an awesome platform that can have the rear end and shock/fork switched for a completely different ride. I rather just have a few different bikes, but if you like to tinker in the shop and try out different settings then their conversion kits may just be for you.

While this is not a downhill bike, GG started with the intent of building a true DH machine. These bikes are designed to go downhill and the Megatrail meets that requirement with ease. To top it off, I am not a light dude. I have absolutely jack-hammered this whip and the wheels are true, the bearings run free, and nothing feels loose or in need of maintenance. It may not be $12,000 Yeti, but it’s from Colorado, born in the mountains and made to ascend and descend said mountains over and over and over.

Like many other builders out there, the GG platform is based on a 4-bar Horst link. I do like the DW link and own a Pivot, but the 4-bar bikes have always felt more stout. The only difference with the GG is that it’s significantly cheaper than a lot of the competition.

The Run Out: A Carbon Wander Machine

When I first started mountain biking, I thought the Rampage crowd was absolutely crazy. I enjoyed cross country riding (and still do) but have come to really love bike parks. No one would claim I am not the best at it. I do find myself progressing each year. I even followed my 10-year-old off the Moonbooter on A-Line at Whistler! That was on my Megatrail.

I love the Megatrail. It is definitely my favorite bike in my stable. I rated it at an 90% (or 54/60), but that is primarily because of the parts I have chosen. People like Sram, but I just break it all of the time. I plan on upgrading though. Eventually, I will have saved enough pennies to upgrade this bike to a 99%. Nothing is ever perfect, but you can get close.

The ride quality, ability to build as you see fit and cost comparatively to the competition makes the Megatrail a worthy enduro machine for anyone. To top it off, GG has amazing customer service, the frames are built in the U.S. and exude quality. Don’t hesitate to pick up a Megatrail for yourself. I know they say money can’t buy happiness, but it can buy a Megatrail and that is basically the same thing.

When I originally wrote this GG was still selling bikes. As I post this review, their website still exists, but you can’t load anything into the cart. I suppose I have a collector’s item now. There isn’t much I can do about it. Luckily, I have a new Foes Mutz to drown my sorrows in. Stay tuned for the review on the ultimate FS Fatty!

Guerrilla Gravity Megatrail RidesOne
This giant slab above Boise was one of the first solid runouts I got to experience on my new steed. Oh what fun!

My current “Big-Rig” Setup Below:

Bike: Guerrilla Gravity Megatrail Size 3 – Carbon front and aluminum rear end with travel adjust linkage and headset

Bottom Bracket: Sram Dub

Rims: DT Swiss M1900

Tires: Maxxis Minion F-DHF, R-DHR 27.5x 2.8

Hubs: F- DT Swiss 15x110mm

           R- DT Swiss 12x148mm, Shimano HG Freehub with DT Swiss 54 tooth Star Rachet conversion

Stem: I9 A 35mm

Headset: GG Custom Adjustable/FSA spacers

Handlebar: Diety

Grips: Ergon GE1

Brakes: Magura MT7 (200mm rotors front and rear)

Saddle: SDG /Diety

DriveTrain: SRAM NX Eagle 12 speed

Cranks:  Sram NX

Cassette: Sram

Seat Post: SDG Tellis IR 170mm, 31.6

Rear Shock: Fox Float DPX2 165mm

Fork: Fox Factory 36 (170mm, 44mm rake)

Weight: 35 lbs

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