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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.

Person riding Gorilla Monsoon bike in Aqua Seafoam color on rocky desert road with front bag attached to handlebar

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.

Two people talking, stopped for a break from riding Gorilla Monsoons in desert mountains next to river, one tall one short

Performance

Gorilla Monsoon fork detail showing mid-blade eyelets to mount fender or rack

Mounts for Fenders and Racks in Front and Back

Conquer wet roads, fully loaded bikepacking trips, and the gnarliest of grocery lists

Rear view of complete Gorilla Monsoon showing tire clearance of seatstay and bridge

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 decal on seat tube of Gorilla Monsoon

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 installed on complete Gorilla Monsoon bike with no exposed cable housing

Dropper Seatpost

Ready to rock steep descents on the trail or pavement

Non-drive-side rear dropout of complete Gorilla Monsoon bike showing flat mount

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
Close-up of Gorilla Monsoon fork crown showing detail

Lugged Bi-Plane Fork Crown

Lovely bi-plane fork crown for turnin’ heads

Drive-side rear dropout of Gorilla Monsoon complete bike showing AC logo stamped

Custom Dropouts and Fork Ends

Elegant custom-designed dropouts and fork ends accommodate 12mm thru-axles and flat-mount disc brakes

Reinforced water bottle bosses on complete Gorilla Monsoon bike

Reinforced Bottle Bosses

Beautiful stars reinforce the mounts for three bottle cages, highlighting our obsessive attention to detail

Detail of complete Gorilla Monsoon bike showing Shot Collar close-up

Signature Seat Collar

Our fully custom-designed Shot Collar confidently secures your seatpost with a dash of All-City’s signature style

Gorilla Monsoon detail of All-City stamped in on bottom bracket shell

Pantographed Bottom Bracket

Upside-down and inside-out, AC’s signature style is stamped into the steel

Complete Gorilla Monsoon outside in sun showing paint

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.”

– Jakers from Portland

Named one of the TOP FIVE BIKE PACKING BIKES OF 2018

– Bikepacking.com
Audio: (mellow music) Video: “All-City” text appears onscreen, followed by “Gorilla Monsoon.” A bike spins into view, transitioning between 2 model colors as it does so. The bike’s saddle rises to a height several inches higher than before, and the thick back tire is highlighted with room to spare. “Root Beer Fade” text is shown with the corresponding colored bike alongside, and then “Pineapple Sundae” text is shown similarly near the bike of its color. Next, a cartoon woman is shown biking in the desert, through a bison-filled plain, and amongst mountains. Audio: (mellow music continues) Video: A sticker on the bike frame with “All-City 612 Select” text is highlighted to showcase the material used. The thick front tire and boxy fork are shown. The cartoon woman is again biking down a steep incline. Lastly, bikes in both colors are presented alongside each other before the following text appears: “Learn more at allcitycyles.com”.

FIND A RETAILER

Gorilla Monsoon GRX

    * 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 *

    To find a retailer, click a bike color, frame type, size, and BUY LOCAL NOW.

    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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    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
    All-City Gorilla Monsoon geometry line drawing
    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
    • Download(s) »

    FAQS & REVIEWS

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