DO-IT-ALL DIRT SOLUTION
Built to best all kinds of terrain, the Gorilla Monsoon sends you into the unknown with vigor, style, and elegance.
FLUENT IN ESCAPISM
Fired-up and ready to roll, the Gorilla Monsoon is determined to take you anywhere – from familiar city streets to steep, knobby climbs that lead to overlooks and overnight stays. With agile geometry and day-long comfort, this do-it-all dirt machine was made to send exploration enthusiasts and bikepackers on the ride of a lifetime.
Sizing for Small & Tall
Available in seven frame sizes including 43cm, the Gorilla Monsoon capably and comfortably accommodates our smallest and tallest riders for long days in the saddle.
Performance
Mounts for Fenders and Racks in Front and Back
Conquer wet roads, fully loaded bikepacking trips, and the gnarliest of grocery lists
Tire Clearance
Built around a 27.5 x 2.4” platform, the Gorilla Monsoon offers clearance for 700c x 42mm tires to deliver complete tire freedom
612 Select Tubing
Selected specifically for sporty handling on the course, comfort on short-duration tours, and maximum fun off-road. Learn more about 612 Select Tubing
Dropper Seatpost
Ready to rock steep descents on the trail or pavement
Flat-mount brakes
Flat-mount disc brakes offer clean aesthetics and compatibility with modern product standards
Signature Details
Our mission is to bring beauty back to production bicycles. This means investing in custom touches that elevate the whole. We devote time and resources to signature details that turn heads and signify high-quality craftsmanship. These elements tell a cohesive visual story and form a distinct silhouette so that even if your unique bike were stripped down to bare metal, it would still be instantly identifiable as an All-City bicycle. Learn more
Lugged Bi-Plane Fork Crown
Lovely bi-plane fork crown for turnin’ heads
Custom Dropouts and Fork Ends
Elegant custom-designed dropouts and fork ends accommodate 12mm thru-axles and flat-mount disc brakes
Reinforced Bottle Bosses
Beautiful stars reinforce the mounts for three bottle cages, highlighting our obsessive attention to detail
Signature Seat Collar
Our fully custom-designed Shot Collar confidently secures your seatpost with a dash of All-City’s signature style
Pantographed Bottom Bracket
Upside-down and inside-out, AC’s signature style is stamped into the steel
Liquid Paint and E.D. Coat
Our topnotch wet paint finish sparkles with depth and luster, while an E.D. coating protects against rust. Learn more about our paint
Accolades
"...this bike can do it all."
“Hot Darn. This bike knocks it out of the park. It's my everything bike. This beast jazzes me up, rides on rails, stops on dimes and pays the piper. A must ride.”
Named one of the TOP FIVE BIKE PACKING BIKES OF 2018
FIND A RETAILER
* Manufacturer's suggested retail price may not include additional shipping or preparation charges. Please contact your local dealer for a quote. COMPLETE MSRP $2,799 USD | $3,899 CAD | FRAMESET MSRP $999 USD | $1,449 CAD *
SPECS & GEO
- Frame 612 Select Chromoly Steel, TIG Welded and Brazed, E.D. Coated
- Fork 612 Select Chromoly Steel, All-City Signature fork ends, Bi-Wing Crown, TIG Welded and Brazed, E.D. Coated
- Seatpost Clamp All-City Shot Collar
- Crankset FSA V-Drive 38t, MegaEVO
- Bottom Bracket FSA MegaEVO
- Front Derailleur N/A
- Rear Derailleur Shimano GRX RX812
- Cassette SunRace CSMS8 11-speed, 11-42t
- Chain KMC X11 EPT
- Headset Cane Creek 40 Series
- Brake Calipers Shimano GRX RX810
- Brake Levers Shimano GRX RX810
- Rotors Shimano SM-RT66,160 f/r, 6-Bolt
- Shifter Shimano GRX RX810
- Stem JD ST123A, 31.8mm, ±7° Rise
- Handlebar JD RA48A
- Grip/Tape All-City Embossed Black Tape
- Saddle All-City Gonzo
- Seatpost TranzX JD-TSI01L, 27.2, 350mm L, 50mm drop
- Front Hub Novatec D981SB 12x100 32h
- Rear Hub Novatec D982TSB 12x142 32h
- Rims WTB ST i25 TCS 2.0, 32h
- Tires WTB Riddler, 27.5 x 2.4", TCS Light/Fast
| Size | 43cm | 46cm | 49cm | 52cm | 55cm | 58cm | 61cm |
|---|---|---|---|---|---|---|---|
| Head Tube Angle | 70 | 71 | 71 | 71.5 | 71.5 | 71.5 | 71.5 |
| Seat Tube Angle) | 74.5 | 74 | 74 | 73.5 | 73 | 72.5 | 72.5 |
| Top Tube Length) | 505 | 520 | 528 | 545 | 565 | 585 | 605 |
| Seat Tube Length | 415 | 445 | 475 | 510 | 540 | 570 | 600 |
| Chainstay Length | 430 | 430 | 430 | 430 | 430 | 430 | 430 |
| Bottom Bracket Drop | 62.5 | 62.5 | 62.5 | 62.5 | 62.5 | 62.5 | 62.5 |
| Fork Offset | 50 | 50 | 50 | 47 | 47 | 47 | 47 |
| Total Fork Length | 392 | 392 | 392 | 392 | 392 | 392 | 392 |
| Head Tube Length | 115 | 125 | 135 | 155 | 175 | 200 | 225 |
| Standover | 711 | 735.5 | 758.2 | 788.3 | 813.4 | 840.1 | 866.8 |
| Wheelbase | 1007 | 1008 | 1017 | 1021 | 1036 | 1051 | 1072 |
| Stack | 534 | 547 | 557 | 579 | 598 | 621 | 645 |
| Reach | 357 | 363 | 368 | 374 | 382 | 389 | 402 |
| Handlebar Width | 400 | 400 | 420 | 440 | 440 | 460 | 460 |
| Stem Length | 70 | 80 | 90 | 100 | 100 | 110 | 120 |
| Crank Arm Length | 165 | 165 | 170 | 170 | 170 | 175 | 175 |
- Frame Construction 612 Select Chromoly Steel, TIG Welded and Brazed, E.D. Coated
- Fork Construction 612 Select Chromoly Steel, All-City Signature fork ends, Bi-Wing Crown, TIG Welded and Brazed, E.D. Coated
- Rear Dropout Configuration All-City Signature Dropout
- Rear Hub Spacing 142 x 12mm thru-axle
- Rear Axle Dimensions Ø12 x 163mm, TP=1.5, TL=12
- Rear Brake Flat Mount, 140–160mm
- Front Brake Flat Mount, 140–160mm
- Head Tube Ø34mm (1 1/8")
- Steerer Tube Ø28.6mm (1-1/8")
- Crown Race Ø30mm (1-1/8")
- Stock Headset Upper (S.H.I.S.) EC34/28.6
- Stock Headset Lower (S.H.I.S.) EC34/30
- Seat Collar All-City Shot Collar, 30mm
- Seatpost 27.2mm
- Dropper Compatible (Routing) Internal dropper post routing compatible
- Front Derailleur (Clamp) 28.6
- Front Derailleur Type Band Clamp
- Max Chainring (CL)[3] 1x: 42t max
- Bottom Bracket 73mm English
- Design Wheel/Tire Sizes 27.5 x 2.4"
- Tire Clearance Frame [1]/[2] 27.5 x 2.4", 700c x 42mm
- Tire Clearance Fork [1] 27.5 x 2.4", 700c x 42mm
- Alternate Wheel-Tire Sizes 700c x 42mm
- Rigid Fork Spec Gorilla Monsoon
- Fork Offset 43cm~49cm, 50mm Offset; 52cm~61, 47mm Offset
- Front Hub Spacing 100 x 12mm; thru-axle
- Front Axle Dimensions Ø12 x 120mm , TP=1.5, TL=12
- Front Brake (Rotor) 140–160mm
- Bottle Mounts Frame Two inside frame, one under down tube, all sizes
- Bottle Mounts Fork None
- Downtube Accessory Mounts None
- Rack Mounts Frame Yes
- Rack Mounts Fork Yes
- Fender Mounts Frame Yes
- Fender Mounts Fork Yes
- Other Features E.D. Coating on frame and fork for rust prevention
- Download(s) »
