• Megatrail
    As the "Big Mountain Liberator, the Megatrail is built for those that shred singletrack as hard as Dave Mustaine shreds a fretboard. A versatile machine for getting after it at your local enduro race or just slaying your after-work rides.
    Megatrail knobs
  • Megatrail
  • Megatrail
  • Megatrail
  • Megatrail
  • Megatrail

The Megatrail is leading the revolution in trail bike freedom.

As a highly refined and extremely versatile trail bike, the Megatrail is built for everything from conquering high-alpine adventures to shredding bike park laps, or just slaying your after-work rides. And when it’s time to turn the Rad up to 11, Gravity Mode™ provides a 30-second, one-bolt geometry toggle that transforms the bike into a downhill dominator--it's like having two bikes!

The Megatrail's design achieves best-in-class pedaling, next-level cornering, and downhill authority. The leverage curve works well with both air and coil shocks, providing support while pedaling, small bump sensitivity, and progression for hard bottom-out resistance regardless of shock choice. Extremely well-tuned anti-squat characteristics and mid-stroke support create a very efficient pedalling platform.

Freedom Linkage

We used our background in racecar engineering to create the Freedom Linkage, a versatile platform that allows you to dial in your ride characteristics based on local terrain and rider preferences via shock tunes; the base tune is designed with advanced riders in mind.

It also utilizes our approach to design that focuses on a high level of refinement to eliminate unnecessary complication. This creates a platform that's made for goin' fast, yet is easy to maintain and built to last. Plus, it's built right here in our shop. Those are pure American welds (f* yeah!)!

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Frame Features:

  • Trail Mode and Gravity Mode™
    • Trail Mode: 150 mm travel, 13.4" BB, 66.2º HA
    • Gravity Mode™: 165 mm travel, 13" BB, 65.5º HA
  • Freedom Linkage using proprietary Horst Link implementation
  • Steeper seat tube angle maintains consistent geo as the saddle is raised and lowered, improves climbing efficiency
  • NUTS (Necessities Under the Saddle) Bracket keeps your flat changing essentials easily accessible (and lightens your load)
  • Bottle mount in front triangle
  • Premium Enduro Maxx cartridge bearings last longer (they have more balls)
  • 6.6 lbs. (2,993g) frame with hardware (size Medium, no shock)

Frame Fittings:

  • 30.9mm seatpost (34.9mm clamp)
  • 49mm headtube, fits tapered steerer tubes
  • ISCG05 chainguide mount
  • 230x65 mm shock
  • Threaded 73 mm BB spacing (no creaky press fit BB here!)
  • 55mm chainline
  • 12x148 rear axle, offset 3mm to the driveside for optimal chainline and clearance
  • Universal Syntace rear axle and derailleur hanger
  • ISO brake caliper mount
  • Max fork travel: 180 mm
  • Max tire size: 27.5x2.6

Sizing Recommendations:

XS SMALL MEDIUM LARGE
Height Guide 4'11" - 5'3"
5'3" - 5'8"
5'8" - 6'1"
6'1" - 6'4"
XS FRAME SIZE SMALL MEDIUM LARGE
Height Guide 4'11' - 5'3" 5'3" - 5'8" 5'9" - 6'1 6'1 - 6'4"
HA w/ 170 mm Fork - Trail Mode* 66.2º
66.2º
66.2º
66.2º
SA - Effective - Trail Mode* 77.1º 77.0º
76.9º
76.8º
SA - Actual - Trail Mode* 73.5º
73.5º
73.5º
73.5º
BB Height w/ 170 mm Fork - Trail Mode* 13.4" 13.4" 13.4" 13.4"
HA w/ 170 mm Fork - Gravity Mode* 65.5º
65.5º
65.5º
65.5º
SA - Effective - Gravity Mode* 76.4º 76.3º
76.2º
76.1º
SA - Actual - Gravity Mode* 72.8º
72.8º
72.8º
72.8º
BB Height w/ 170 mm Fork - Gravity Mode* 13" 13" 13" 13"
Effective Top Tube 21.7" 23" 24.3" 25.5"
Reach** 16.3" 17.3" 18.3" 19.3"
Stack 24.3" 24.3" 25" 25.6"
Wheelbase 44.8" 46.1" 47.4" 48.7"
Standover 26.5" 27" 28.3" 29.8"
Chainstay 16.8" 16.8" 16.8" 16.8"
Headtube Height 3.9" 3.9" 4.7" 5.5"
Seat Tube Height 15.5" 16.5" 18" 19.5"
FRAME SIZE XS SMALL MEDIUM LARGE
Sizing Guide* 150 - 159 cm 160 - 173 cm 174 cm - 184 cm 185 - 192 cm
HA w/ 170 mm Fork - Trail Mode* 66.2º
66.2º
66.2º
66.2º
SA - Effective - Trail Mode* 77.1º 77.0º
76.9º
76.8º
SA - Actual - Trail Mode* 73.5º
73.5º
73.5º
73.5º
BB Height w/ 170 mm Fork - Trail Mode*
340 mm 340 mm 340 mm 340 mm
HA w/ 170 mm Fork - Gravity Mode* 65.5º
65.5º
65.5º
65.5º
SA - Effective - Gravity Mode* 76.4º 76.3º
76.2º
76.1º
SA - Actual - Gravity Mode* 72.8º
72.8º
72.8º
72.8º
BB Height w/ 170 mm Fork - Gravity Mode*
330 mm 330 mm 330 mm 330 mm
Effective Top Tube 551 mm 584 mm 617 mm 648 mm
Reach** 405 mm 440 mm 465 mm 490 mm
Stack 617 mm 617 mm 635 mm 650 mm
Wheelbase 1139 mm 1173 mm 1207 mm 1240 mm
Standover 673 mm 686 mm 719 mm 757 mm
Chainstay 427 mm 427 mm 427 mm 427 mm
Headtube Height 100 mm 100 mm 120 mm 140 mm
Seat Tube Height 394 mm 419 mm 457 mm 495 mm

* The Megatrail accepts forks between 150-180 mm of travel. Changing the travel +/- 10 mm creates a head angle (HA) change of +/- .4º and BB height change of .1" (3 mm).

** Please note that with a steeper seat tube angle reach numbers may seem longer compared to the "average" reach numbers of other bikes. For further sizing advice, please email us.

If you have any questions about sizing or geometry, contact us.

"To be honest this is the bike I have been waiting for someone to make for years."
- Vital MTB
"I liked the Megatrail so much I couldn't help but select it for my Editor's Choice Award--it's the best bike I rode in."
- Dirt Rag
"With the custom build options, Guerrilla Gravity provides a very personalized ride at prices similar to what’s available from the McMega brands."
- Blister Gear Review
"Guerrilla Gravity have built a jack-of-all trades."
- Pinkbike