All-City Gorilla Monsoon: Your Adventure-Ready Steel Gravel Bike

Engineered for riders who crave exploration, the Gorilla Monsoon blends rugged capability with All-City’s signature craftsmanship. Whether you’re bikepacking through backcountry trails, commuting on mixed terrain, or embarking on multi-day tours, this steel-framed beast delivers comfort and control.

Built for Versatility

• 612 Select Chromoly Steel Frame: Optimized for responsive handling on rough terrain while absorbing vibrations for all-day comfort.
• Tire Flexibility: Run 27.5×2.4″ knobbies for technical trails or swap to 700c×42mm for faster rolling efficiency.
• Adventure-Ready Features: Stealth dropper post routing, full touring mounts (including a bi-plane fork crown with 4-point rack mounts), and a 73mm BB for wide-chainring compatibility.

Precision Components

• Drivetrain: Shimano GRX RX810 groupset with an 11-42t SunRace cassette for reliable shifting under load.
• Stopping Power: GRX hydraulic disc brakes with 160mm rotors for confident descents.
• Durable Wheelset: WTB ST i25 rims paired with All-City Go Devil hubs, wrapped in grippy WTB Riddler tires.

Fit for Every Rider

Seven frame sizes (43cm–61cm) accommodate riders from 4’11” to 6’6”, with geometry derived from All-City’s CX lineage for stability when loaded.

Why Choose the Gorilla Monsoon?

Ideal for gravel riders, bikepackers, and commuters seeking a steel-framed workhorse that thrives off the beaten path.

Geometry details and full spec list available in product images.