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The Series 3 aluminium frame is built for the hard knocks and is stiff enough for lightning-fast acceleration and tough enough for the heavy hits.
The Series 3 aluminium frame is built for the hard knocks and is stiff enough for lightning-fast acceleration and tough enough for the heavy hits.
Marin

Marin Alcatraz 2 Dirt Jump Hardtail Mountain Bike 2026 in Purple

£1,329.00
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Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Hassle free returns

In the unlikely event that you are not satisfied with your purchase please feel free to return your items within 90 days of the purchase date for a full exchange or refund. Any item (excluding food, underwear or e-gift vouchers) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

It is recommended that you use a recorded delivery service or return to a store to ensure your items are received by us. We cannot assume responsibility for items that are lost in transit back to us.




Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the product(s) have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:
1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £50 for collection (£100 from Northern Ireland). If you do not have the original box in usable condition, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid proof of purchase.

Marin Alcatraz 2 Dirt Jump Hardtail Mountain Bike 2026 in Purple

Season:2026

Brand:Marin

Code:7391170PURFADE

The Alcatraz 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.

The Series 3 aluminium 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 100mm Manitou Expert coil fork, front and rear Tektro hydraulic disc brakes, Vee Tire rubber and plenty of bombproof Marin components. Best of all, it’s available in two frame sizes, regular and long.

Key Features & Benefits:

  • 6061 Series 3 Aluminium frame:With a burly double butted tubesets for the best ride quality and stiffness
  • Dirt Jump Specific Manutou:The Circus Expert, 26" has 100mm Travel, Coil Spring, Taper Steerer Tube, 20x110mm Thru Axle
  • 135x10mm horizontal dropouts:The standard in dirt jump technology for axle and dropout strength.

Full Specification:

  • Frame:Series 3 6061 Aluminum, 26” Wheels, 135x10mm Horizontal Single Speed Dropouts, 73mm Threaded BB, ISCG 05 Tabs
  • Front Suspension:Manutou Circus Expert, 26", 100mm Travel, Coil Spring, Taper Steerer Tube, 20x110mm Thru Axle
  • Number of Gears:1
  • Gear Shifters:N/A
  • Chainset:Marin Forged Alloy, Alloy 32T Chainring, 104mm BCD
  • Chainrings:32T
  • Rear Cassette:14T Single Speed Cog
  • Chain:KMC HL-1
  • Front Derailleur:N/A
  • Rear Derailleur:N/A
  • Bottom Bracket:External Sealed Cartridge Bearings
  • Pedals:Alloy Platform
  • Rims:Marin Custom Extrusion, 27mm Inner, Pinned Joint
  • Front Hub:Forged Alloy, 110x20mm, Disc, 32H
  • Rear Hub:Forged Alloy, 135x10mm, Bolt-On, Quad Sealed Bearings, Disc, 32H
  • Front Tyre:Vee Tire Co. XCV 26x2.25”, LSG Compound, Wire Bead
  • Rear Tyre:Vee Tire Co. XCV 26x2.25”, LSG Compound, Wire Bead
  • Brakes:Tektro HDM275 Hydraulic Disc, 160mm Rotor
  • Handlebar Grips:Marin Single Clamp Locking
  • Handlebar:Marin Riser, 6061 Double Butted Aluminum, 31.8mm at center bulge, 38mm Rise, 750mm Width, 4º Up, 9º Back
  • Headset:FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
  • Stem:Marin 3D Forged Alloy, 31.8mm clamp, 40mm extension
  • Saddle:Marin DJ Saddle
  • Seatpost:Marin Alloy, 30.9mm
  • Accessories:Marin Chain Tension Device
  • Weight:N/A

Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.

Sizing Chart for Marin Alcatraz

SizeRider height range
XS 24">5'1"
S5'1" - 5'9"
L5'6" - 6'3"

Geometry Information for Marin Alcatraz

24"ShortLong
525575580
360385430
69°69°69°
112115120
69°69°69°
320320320
600646
317317
82222
369395395
10371083
370400
424242
SEATPOST DIAMETER30.930.930.9
HANDLEBAR WIDTH700750750
STEM LENGTH354040
CRANK LENGTH152170170
All lengths in millimeters

Warranty Information for Marin:

Marin Mountain Bikes, Inc. ("Marin") warrants to the original retail purchaser ("you") that the Marin product for which you received this warranty is free from defects in material and workmanship for the periods below

FRAMES WARRANTY PERIOD (From date of purchase)
Carbon Fiber Frames and Forks: 5 Years
Rigid Frames and Forks: Lifetime
Full Suspension Frames: 5 Years
COMPLETE BICYCLE
The complete bicycle is warranted for one year (from date of purchase), including all original parts on the bicycle except tires, tubes, chains and other wear & tear items. Paint and decals are covered under this warranty.
This warranty does NOT cover suspension forks, and rear shocks on full suspension bikes. These items are covered by the suspension component manufacturer’s warranty. Please contact the suspension component manufacturer for any warranty needs.
For full warranty policy please visit marinbikes.com

Sizing Information
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