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Marin Alcatraz 2 – ProjektRide

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img src="//projektride.co.uk/cdn/shop/files/25-Alcatraz24_detail-2_81071452-4726-434e-b171-a6fca88cb2cb_2048x2048.jpg?v=1760008442" alt="Marin Alcatraz 24"" class="mfp-zoom-in-cur" id="68074177364351">
We've increased the travel by 10mm at both ends, now standing at 170mm (f) and 160mm (r), and relocated the pivots to the chainstays to deliver the suspension performance and tunability demanded by the longer travel. Riders have the ability to alter the head tube angle by +/- .75° by repositioning the lower headset cup while the bottom bracket height/chainstay length can be changed by the means of seatstay flip chips.
Bosch's Performance Line CX drive units twist out 85Nm of torque and are backed by large capacity 750Wh PowerTube batteries, nestled safely in the frame's downtube, giving you the largest battery in the Marin range for the biggest adventures.
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The Alpine Trail E1 (Bosch) is smartly spec'd with choice Marzocchi suspension with a coil shock out back, Shimano's innovative CUES 10-speed drivetrain and Tektro's Slate EVO 4-piston brakes with 203mm x 2.3mm rotors for when you need to reel in the party.

img src="//projektride.co.uk/cdn/shop/files/ALCATRAZ-24-25-P_4107c575-22eb-40a9-bade-3829a4b4b15a_98x.jpg?v=1760008442" alt="" class="product-single__thumbnail-img">

Specifications

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Frameimg src="//projektride.co.uk/cdn/shop/files/25-Alcatraz24_detail-2_81071452-4726-434e-b171-a6fca88cb2cb_98x.jpg?v=1760008442" alt="" class="product-single__thumbnail-img">

Large
    All New, Series 4 Alloy, 160mm MultiTrac Suspension LT, Adjustable Headset & CS Length/Height, Integrated Battery/Charging Port, 148mm Rear Thru-Axle
  • Product Details Home
    The Alcatraz 1 allows the rider to follow in Matt Jones’ footsteps to build and personalize the best dirt jump bike possible. At home boosting your local 6-pack, ripping up the pump track, or hitting the local skate park the Alcatraz has what you need to take care of business. /

    New productsExtra Large

    The Series 3 aluminum frame is built for the hard knocks and is stiff enough for lightning-fast acceleration and tough enough for the heavy hits. Short stays keep manuals easy and ambidextrous cable routing means you can run your brake on the left or right of the bars. There’s a suspension-corrected CrMo fork, front and rear Tektro disc brakes, Vee Tire rubber and plenty of bombproof Marin components. Best of all, it’s available in two frame sizes, regular and long. /

    Marin Alcatraz 24"

    SpecificationsFront SuspensionMarin Alcatraz 24"Select variant dropdown
    Frame
    • Series 3 6061 Aluminum, 26” Wheels, 135x10mm Horizontal Single Speed Dropouts, 73mm Threaded BB, ISCG 05 TabsMarzocchi Z1, 170mm, 29", 110x15 Kabolt Thru Axle, 44mm Offset£849.00Small - Sold Out
  • Medium - Sold Out
    Fork    Large - Sold Out

    Marin Series 2 CroMo 26", Suspension Corrected, 100x9mm Dropouts Extra Large - Sold Out

    Rear Suspension SKU: 739060001

    - Rear Suspension
    Quantity:
    • RimsSizeMarzocchi CR Coil, 205x65mm, Trunnion Upper Mount, 30xM8 Lower Hardware, Custom Tune, M Spring Rate = 450lb, L Spring Rate = 500lb, XL Spring Rate = 550lb
  • Marin Custom Extrusion, 27mm Inner, Pinned Joint 1

    Hub, Rear

    Forged Alloy, 135x10mm, Bolt-On, Quad Sealed Bearings, Disc, 32HOne Size

    • ton Hydraulic, 203mm Rotor, 2.3mm Thick
  • Rims

    Marin Custom Extrusion, 27mm Inner, Pinned Joint

    Brakes Rear
    • TRP Slate EVO 4-Piston Hydraulic, 203mm Rotor, 2.3mm Thick
  • Hub, Rear

    Forged Alloy, 135x10mm, Bolt-On, Quad Sealed Bearings, Disc, 32H

    Brake Levers
    • TRP Slate EVO
  • Hub, Front

    Forged Alloy, Bolt On 3/8" Axle, 100mm Spacing

    Handlebar
    • Marin Mini Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back
  • Spokes

    14g Black Stainless Steel

    Stem
    • Marin 3D Forged Alloy, 35mm
  • Tires

    Vee Tire, Rail 24x2.25”, LSG Compound, Wire Bead

    Grips
    • Marin Grizzly Lock-On
  • Derailleur, Rear

    -

    Headset
    • FSA Custom Headset, Adjustable HTA Design
  • Derailleur, Front

    -

    Seatpost
    • TranzX, YSP39 1x Remote, 34.9 Seatpost Diameter, Travel S = 150mm, M/L = 170mm, XL = 200mm
  • Shift Lever

    -

    Saddle
    • Marin Speed Concept
  • Crankset

    Marin Forged Alloy, Alloy 32T DM Chainring, 155mm Length

    Pedals
    • -
  • Bottom Bracket

    External Sealed Cartridge Bearings

    Battery
    • Bosch PowerTube 750 Wh
  • Chain

    KMC HL-1

    Display
    • Bosch BRC3100 Systems Controller
  • Cassette

    14T Single Speed Cog

    Switch
    • Bosch BRC3300 Bluetooth Remote 22.2mm Clamp
Brake, Front
Tektro CL-330TS Alloy
Range, Charging Time

31-78 miles/50-125km (Based on Rider Weight, Terrain, Climate and Level of Assist Used), 11 Hours (estimated, under ideal conditions)
 Handlebar
0.016; 2A Charger\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eRange, Charging Time\u003c\/h4\u003e\n\u003cp\u003e31-78 miles\/50-125km (Based on Rider Weight, Terrain, Climate and Level of Assist Used), 11 Hours (estimated, under ideal conditions)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2025-10-09T11:11:14+01:00","created_at":"2025-10-09T11:11:14+01:00","vendor":"Marin","type":"Bicycles","tags":["Alpine Trail E1 Bosch"],"price":449900,"price_min":449900,"price_max":449900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":56189672620415,"title":"Medium","option1":"Medium","option2":null,"option3":null,"sku":"737515002","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Marin Alpine Trail E1 Bosch - Medium","public_title":"Medium","oMarin 3D Forged Alloy, 31.8mm clamp, 35mm extension
alse,"selling_plan_allocations":[]}],"images":["\/\/projektride.co.uk\/cdn\/shop\/files\/AT-E1-Bosch-profile_1_a072d492-6e6a-4403-a61c-b8d1216bd9fe.png?v=1760008439"],"featured_image":"\/\/projektride.co.uk\/cdn\/shop\/files\/AT-E1-Bosch-profile_1_a072d492-6e6a-4403-a61c-b8d1216bd9fe.png?v=1760008439","options":["Size"],"media":[{"alt":null,"id":68074176971135,"position":1,"preview_image":{"aspect_ratio":1.46,"height":1815,"width":2649,"src":"\/\/projektride.co.uk\/cdn\/shop\/files\/AT-E1-Bosch-profile_1_a072d492-6e6a-4403-a61c-b8d1216bd9fe.png?v=1760008439"},"aspect_ratio":1.46,"height":1815,"media_type":"image","src":"\/\/projektride.co.uk\/cdn\/shop\/files\/AT-E1-Bosch-profile_1_a072d492-6e6a-4403-a61c-b8d1216bd9fe.png?v=1760008439","width":2649}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eThe all-new Alpine Trail E (Bosch) is our biggest, baddest beast of a bike family. Moving one step beyond in capability from the Alpine Trail E models, the new Alpine Trial E Bosch eMT artly spec'd with choice Marzocchi suspension with a coil shock out back, Shimano's innovative CUES 10-speed drivetrain and Tektro's Slate EVO 4-piston brakes with 203mm x 2.3mm rotors for when you need to reel in the party.\u003c\/p\u003e\n\u003ch3 class=\"specifications__title\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul class=\"specifications__list\"\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eFrame\u003c\/h4\u003e\n\u003cp\u003eAll New, Series 4 Alloy, 160mm MultiTrac Suspension LT, Adjustable Headset \u0026amp; CS Length\/Height, Integrated Battery\/Charging Port, 148mm Rear Thru-Axle\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eFront Suspension\u003c\/h4\u003e\n\u003cp\u003eMarzocchi Z1, 170mm, 29\", 110x15 Kabolt Thru Axle, 44mm Offset\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eRear Suspension\u003c\/h4\u003e\n\u003cp\u003eMarzocchi CR Coil, 205x65mm, Trunnion Upper Mount, 30xM8 u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eTires\u003c\/h4\u003e\n\u003cp\u003eVee Tire Co Attack HPL, E-Control Compound, Front 29x2.5\", Rear 27.5x2.5\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eDerailleur Rear\u003c\/h4\u003e\n\u003cp\u003eShimano CUES RD-U6000 GS, 10-Speed\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eDerailleur Front\u003c\/h4\u003e\n\u003cp\u003e-\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eShift Lever\u003c\/h4\u003e\n\u003cp\u003eShimano CUES SL-U6000-10R, 10-Speed\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eCrankset\u003c\/h4\u003e\n\u003cp\u003ee*thirteen e*spec Plus, 160mm Length\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eMotor\u003c\/h4\u003e\n\u003 u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eHandlebar\u003c\/h4\u003e\n\u003cp\u003eMarin Mini Riser, 6061 Double Butted Aluminum, 780mm Width, 28mm Rise, 5º Up, 9º Back\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eStem\u003c\/h4\u003e\n\u003cp\u003eMarin 3D Forged Alloy, 35mm\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eGrips\u003c\/h4\u003e\n\u003cp\u003eMarin Grizzly Lock-On\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eHeadset\u003c\/h4\u003e\n\u003cp\u003eFSA Custom Headset, Adjustable HTA Design\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eSeatpost\u003c\/h4\u003e\n\u003cp\u003eTranzX, YSP39 1x Remote, 34.9 Seatpost Diameter, Travel S = 150mm, M\/L = 170mm, XL = 200mm\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eSaddle\u00
erts, Marin Tire Sealant 300ml Bottle, Bosch EB12.110.016; 2A Charger\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv\u003e\n\u003ch4\u003eRange, Charging Time\u003c\/h4\u003e\n\u003cp\u003e31-78 miles\/50-125km (Based on Rider Weight, Terrain, Climate and Level of Assist Used), 11 Hours (estimated, under ideal conditions)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e"} Grips
[]
Marin MTN, Closed End
s.\nThe Alpine Trail E1 (Bosch) is smartly spec'd with choice Marzocchi suspension with a coil shock out back, Shimano's innovative CUES 10-speed drivetrain and Tektro's Slate EVO 4-piston brakes with 203mm x 2.3mm rotors for when you need to reel in the party.\nSpecifications\n\n\n\nFrame\nAll New, Series 4 Alloy, 160mm MultiTrac Suspension LT, Adjustable Headset \u0026amp; CS Length\/Height, Integrated Battery\/Charging Port, 148mm Rear Thru-Axle\n\n\n\n\nFront Suspension\nMarzocchi Z1, 170mm, 29\", 110x15 Kabolt Thru Axle, 44mm Offset\n\n\n\n\nRear Suspension\nMarzocchi CR Coil, 205x65mm, Trunnion Upper Mount, 30xM8 Lower Hardware, Custom Tune, M Spring Rate = 450lb, L Spring Rate = 500lb, XL Spring Rate = 550lb\n\n\n\n\nRim\nFront: Marin Aluminum Double Wall, 29\" Diameter, 32mm Inner Rim Width, Pinned Joint, Disc Specific, Tubeless Compatible; Rear: Marin Aluminum Double Wall, 27.5\" Diameter, 32mm Inner Rim Width, Pinned Joint, Disc Specific, Tubeless Compatible\n\n\n\n\nHub Rear\nShimano HB-TC500, 148x n\nHeadset\nFSA Custom Headset, Adjustable HTA Design\n\n\n\n\nSeatpost\nTranzX, YSP39 1x Remote, 34.9 Seatpost Diameter, Travel S = 150mm, M\/L = 170mm, XL = 200mm\n\n\n\n\nSaddle\nMarin Speed Concept\n\n\n\n\nPedals\n-\n\n\n\n\nBattery\nBosch PowerTube 750 Wh\n\n\n\n\nDisplay\nBosch BRC3100 Systems Controller\n\n\n\n\nSwitch\nBosch BRC3300 Bluetooth Remote 22.2mm Clamp\n\n\n\n\nExtras\ne*thirteen e*Spec Chainguide\n\n\n\n\nExtras\nCush Core Pro Tire Inserts, Marin Tire Sealant 300ml Bottle, Bosch EB12.110.016; 2A Charger\n\n\n\n\nRange, Charging Time\n31-78 miles\/50-125km (Based on Rider Weight, Terrain, Climate and Level of Assist Used), 11 Hours (estimated, under ideal conditions)\n \n\n\n","sku": "737515002","brand": { "@type": "Thing", "name": "Marin" },"gtin8": "","offers": [{ "@type" : "Offer","sku": "737515002","availability" : "http://schema.org/InStock", "price" : 4499.0, "priceCurrency" : "GBP", "url" : "https:\/\/projektride.co.uk\/products\/marin-alpin
Seatpost
Marin Alloy, 30.9mm
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DERAILLEUR FOX TRANSFER 31.6MM / 175MM