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Marin Alcatraz 24"
-
Frame
Series 3 6061 Aluminum, 24” Wheels, 135x10mm Horizontal Single Speed Dropouts, 73mm Threaded BB, ISCG 05 Tabs
Add to Cart -
Front Suspension
ADVENTURE ON AND OFF-ROAD RIDINGMarin Series 2 CroMo 24", Suspension Corrected, 100x9mm Dropouts
LONG DISTANCE COMMUTING
GRAVEL RIDING -
The Gestalt X is our hard-charging, rough-and-rowdy take on what gravel and adventure bikes can do. Break off the fire road, down the singletrack and charge further and faster than ever before. All while keeping the versatility, challenge and fun of a bike with drop handlebars.
Rear Suspension
The Gestalt X is built with a longer-than-the-usual wheelbase, slack-like-your-mountain-bike head angle, low-slung frame, wide bars, short stem, big and chunky tires with room for up to 50mm on 700c or 54mm with a 650b wheelset.-
The Gestalt XR takes gravel to the next level. XR brings our MTB-inspired, Series 3 aluminum Gestalt X frame and adds a gravel-specific SRAM Apex 12-speed drivetrain, Apex hydraulic disc brakes, a TranzX dropper post, cushy and grippy 45mm wide Vee Tire Rubber and heaps of our own bespoke Marin components.
Specifications -
FrameSeries 3 Beyond Road, 6061 Aluminum, Tapered Head Tube, Relieved BB, Internal Cable Routing, Mudguard and Rack Mounts, Flat Mount Disc, 142x12mm Thru-AxleRim
Rims
ForkMarin Custom Extrusion, 27mm Inner, Pinned JointMarin Full Carbon w/ Tapered Steerer, 12mm Thru-Axle, Flat-Mount Disc, Fender Eyelets
Marin Aluminum Double Wall, 25mm Inner, 18mm Tall, Disc Specific, Tubeless Compatible -
Hub Rear
Hub, RearForged Aluminum Alloy, 142x12mm, Disc, 32H
Forged Alloy, 135x10mm, Bolt-On, Quad Sealed Bearings, Disc, 32HHub Front
Forged Aluminum Alloy, 100x12mm, Disc, 32H
Spokes Nipples -
14g Black Stainless SteelSRAM Apex 1 12-Speed
Hub, FrontTires
Vee Tire Co., Quikstyk, 700x45, Folding Bead, Tubeless CompatibleForged Alloy, Bolt On 3/8" Axle, 100mm Spacing
Derailleur Rear -
Derailleur Front-Crankset
Spokes
Shift Lever14g Black Stainless SteelSRAM Apex 1 1x12-Speed
SRAM Apex 1, 40T -
Bottom Bracket
TiresSRAM DUB BSA
Vee Tire, Rail 24x2.25”, LSG Compound, Wire BeadChain
SRAM NX
Cassette -
SRAM CS-XG-1275, 10-52TSRAM Apex 1 Flat-Mount Hydraulic Disc, 160mm Rotor
Derailleur, RearBrakes Front
SRAM Apex 1 Flat-Mount Hydraulic Disc, 160mm Rotor-
Brakes Rear -
Brake LeversSRAM Apex 1 Hydraulic DiscStem
Derailleur, Front
Handlebar-Marin Butted Alloy, Compact 16º Flared Drop
Marin 3D Forged Alloy -
Grips
Shift LeverMarin Shock Absorbing Perforated Tape
-Headset
FSA Orbit IS, Sealed Cartridge Bearings, 1 1/8” x 1 1/2”
Seatpost -
TranzX YSP38J, Size S-M 70mm, Size L-XL 110mm Travel, 27.2mm-
CranksetSaddle
Marin Beyond Road Concept EliteMarin Forged Alloy, Alloy 32T DM Chainring, 155mm Length
Pedals -
ExtrasBolt-On Thru-Axles F and R
Bottom Bracket
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Break off the fire road, down the singletrack and charge further and faster than ever before. All while keeping the versatility, challenge and fun of a bike with drop handlebars.\u003c\/p\u003e\n\u003cp\u003eThe Gestalt X is built with a longer-than-the-usual wheelbase, slack-like-your-mountain-bike head angle, low-slung frame, wide bars, short stem, big and chunky tires with room for up to 50mm on 700c or 54mm with a 650b wheelset.\u003c\/p\u003e\n\u003cp\u003eThe Gestalt XR takes gravel to the next level. 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[] -
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-
Frequently Asked Questions
Cassette
14T Single Speed Cog

Marin Gestalt XR