2025 Marin Alcatraz 1 Jump Bike

£849.00

Finance available with Novuna Personal Finance

Choose from 1 Colour and 2 Sizes

Out of Stock
We expect to have more available from 18th August 2025.

Stock Location and Availability

Part Number:

739116001

GTIN/UPC:

843346129604

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The 2025 Marin Alcatraz 1 Jump Bike 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 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.

This bike is perfect for

Dirt jumpers and mountain bikers who want a simple, but tough, bike that works out of the box but is also a great platform for customise.

Key Features

Series 3 6061 Aluminium Frame with 26" Wheels
Tektro MD-M280 Mechanical Disc brakes
Series 2 Cro-Mo 26" Fork can easily be swapped out for suspension

Mountain Bike Buying Guide

Mountain biking is an incredibly diverse sport. Mountain bikes now come in three main flavours. They are XC, Trail and Enduro.

XC – short for cross country, are quick race bikes. They will normally have 29” wheels and come with 100mm of suspension. If you are mainly going to be riding bridleways and natural trails in the South East of England, where our shops are, an XC bike will be the quickest and most efficient option.

Trail – these bikes are designed to be pedalled up and down hill and for use on bridleways and natural trails, but also at dedicated trail centres. They normally come with 130mm or 140mm of suspension travel and can have either 27.5” or 29” wheels, but 29” is quickly becoming the norm. Trail bikes are good all-rounders. They won’t be as fast as an XC bike on the flat but they can handle a lot more challenging terrain, and a few jumps. If you plan on taking your bike to trail centres in Wales, or to the Alps, then a trail bike may be your best option.

Enduro – enduro racing is a thing in and of itself but many people buy enduro bikes for ‘aggressive’ trail riding and uplift days at places like Bike Park Wales. This generally means challenging downhill trails with some big jumps. With around 160mm of suspension travel enduro bikes can take some big hits. They are designed to be efficient enough to pedal up hills but really come into their own when pointed downhill. You get enduro bikes in either 27.5” or 29” wheel sizes as well as mullet setups of 29 at the front and 27.5 at the back.

Men’s and women’s mountain bikes

Nearly all the mountain bikes we sell are now unisex. All of the big brands have gradually stopped doing dedicated men’s and women’s bikes over the last few years. Instead they are focussed on producing bikes in a bigger range of sizes. So, for instance, the Trek Marlin 5 is a unisex bike that now comes in sizes from XXS to XXL large. This means it will fit riders from 4’ 5” to 6’ 5” and everything in between.

Read our full mountain bike buyers guide

Price Match at Cycles uk

We understand that price is important, so we regularly price-check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.

Frame	All New Series 3 6061 Aluminum Frame, 26" Wheels, 135x1N/Amm Horizontal Dropouts, 73mm Threaded BB, ISCG N/A5 Tabs
Rear Shock	-
Fork	Marin Series 2 Cro-Mo 26" Fork, Suspension Corrected, 100x9mm Drop Outs
Headset	FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2"
Stem	Marin 3D Forged Alloy, 4N/Amm
Handlebar	Marin Riser, 6N/A61 Double Butted Aluminum, 38mm Rise, 75N/Amm Width, 4deg Up, 9deg Back
Grip	Marin Single Clamp Locking
Brake Type	Tektro CL-330TS Alloy
Brake Lever	Tektro MD-M280 Mechanical Disc 160mm Rotor
Brake Calipers	Tektro MD-M280 Mechanical Disc 160mm Rotor
Tyres	Vee Tire, XCV 26x2.25", LSG Compound, Wire Bead
Wheels	Marin Custom Extrusion, 27mm Inner, Pinned Joint
Front Hub	Forged Alloy, Bolt On 3/8th Axle, 100mm Spacing
Rear Hub	Forged Alloy, 135x1N/Amm, Bolt-On, Quad Sealed Bearings, Disc, 32H
Spokes	14g Black Stainless Steel
Front Derailleur	N/A
Rear Derailleur	N/A
Shift Levers	N/A
Chain	KMC HL-1
Cassette	14T Single Speed Cog
Crankset	Marin Forged Alloy, Alloy 32T Chainring, 104mm BCD, 170mm Crank Length
Pedals	Alloy Platform
Bottom Bracket	External Sealed Cartridge Bearings
Saddle	Marin DJ Saddle
Seat Post	Marin Alloy, 30.9mm

Colours	BLUE FADE
Sizes	Long, Short
Brand	Marin
Model Year	2025
Barcodes	843346129604, 843346129611
SKUs / Part Numbers	739116001, 739116002

Please note: Manufacturers can sometimes change the specification of the products from time to time.

Why buy from Cycles UK?

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We Deliver

You can choose how to receive your new bike. You can click and collect from our stores, pick a fast courier delivery or premium hand delivery. Whichever option you choose your bike will be fully assembled and checked by one of our experienced mechanics.