Gorilla Monsoon GRX
A Cross Monster Built for Exploration
Taking inspiration from our famed cross bikes, the Gorilla Monsoon will send you far into the unknown with comfort, style, and elegance.

Do-It-All Dirt Solution
A sweet beast designed to handle double track, gravel, bikecamping, and the pursuit of good times, this nimble, do-it-all dirt solution is ready to send cross racers, dirt tourists, and backcountry explorers 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 $3,149 USD | $4,199 | FRAMESET MSRP $1,199 USD | $1,699 CAD *
With demand at an all-time high, bike inventory can be scarce. If you need help finding an All-City bike, start here.
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Bike Shop to Home Delivery
Because we want to make it easier to support your local All-City retailer during this unusual time, participating dealers can now ship All-City bikes and frames directly to your door. Find your local All-City dealer using our Dealer Locator. After that, all you've gotta do is head over to their website or call 'em up on the phone to place your order, and your bike or frame will be delivered to you.
SPECS & GEO
* Specification and pricing subject to change without notice
- 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 RX810
- Cassette + SunRace 11-speed, 11/42t
- Chain + KMC X11 EPT
- Headset + Cane Creek 40 Series
- Brakes + Shimano GRX RX810
- Brake Levers + Shimano GRX RX810
- Rotors + Shimano SM-RT66,160 f/r, 6-Bolt
- Shifters + Shimano GRX RX810
- Stem + JD, AL6061, 3D forged, 4-bolt stem, 31.8mm, ±6° Rise
- Handlebar + JD, AL6061, 31.8mm, 12° Flair
- Grip/Tape + All-City Embossed Black Tape
- Saddle + All-City Gonzo or DDK-5255
- Seatpost + TranzX JD-TSI01, 27.2, 350mm L, 50mm drop
- Front Hub + All-City Go-Devil 32h
- Rear Hub + All-City Go-Devil 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 | 395 | 395 | 395 | 395 | 395 | 395 | 395 |
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 | 622 | 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
- Front Hub Spacing + 100 x 12mm thru-axle
- Rear Brake + Flat Mount, 140–160mm
- Front Brake + Flat Mount, 140–160mm
- Headtube + Ø34mmØ34mm Ø28.6mm (1-1/8") Ø30mm (1-1/8") EC34/28.6 EC34/30
- 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
- Front Derailleur (Clamp) + 28.6 Band Clamp
- Max Chainring + 1x: 42t max
- Bottom Bracket + 73mm English
- Tire Clearance Frame + 27.5 x 2.4", 700c x 42mm
- Tire Clearance Fork + 27.5 x 2.4", 700c x 42mm
- Rigid Fork Spec + 395mm Axle to Crown with 50mm Offset on 43cm~49cm frames and 47mm offset on 52cm~61cm frames
- Bottle Mounts Frame + Two inside frame, one under down tube, all sizes
- Rack Mounts Frame + Yes (upper and lower threaded)
- Rack Mounts Fork + Yes (upper, lower, and mid-blade threaded)
- Fender Mounts Frame + Yes (upper, lower, and mid-blade threaded)
- Fender Mounts Frame + Yes
- Fender Mounts Fork + Yes
- Other Features + Internal dropper post routing compatible
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