Guerrilla Gravity MegaTrail 27.5 - Leading the revolution in trail bike freedom.

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  • Regular price $5,300.00


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 20-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 pedaling platform.

Freedom Linkage

We used our background in racecar engineering to create the Freedom Linkage, a versatile platform that gives you the freedom to tune the suspension characteristics based on your local terrain and riding style.

Alongside performance, our engineers design for refinement and eliminating 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 Colorado facility in the good ol' U.S. of A.

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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)
  • 6.8 lbs. (3,085 g) frame with hardware (size Medium, no shock)

Frame Fittings:

  • 230 x 65 mm metric shock
  • 30.9 mm seatpost with stealth dropper routing
  • 34.9 mm seatpost clamp
  • 49 mm headtube, fits tapered steerer tubes
  • ISCG05 chainguide mount
  • 73 mm BSA threaded BB shell (greatly reduces creaking!)
  • 55 mm chainline
  • 12 x 148 Boost rear hub, offset 3 mm to the driveside for optimal chainline and clearance
  • Universal Syntace X-12 rear axle and derailleur hanger
  • ISO brake caliper mount
  • Max fork travel: 180 mm
  • Max dropper insertion: 240 mm
  • Max tire size: 27.5 x 2.6”
FRAME SIZE XS SMALL MEDIUM LARGE
Sizing Guide* 150 - 159 cm 160 - 173 cm 174 cm - 182 cm 183 - 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).