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From local pump tracks to street sessions and backyard jumps, the Alcatraz 1 delivers top-tier performance with a bombproof build. Its Series 3 6061 aluminum frame offers outstanding stiffness for aggressive riding and unmatched durability for hard landings and big sends. The short chainstays make manuals, spins, and technical tricks easier than ever – perfect for progressing your skills.
Featuring a suspension-corrected Marin CroMo fork, ambidextrous cable routing, and a dirt jump-specific geometry, this bike is engineered for control and confidence. With 135x10mm horizontal dropouts, you get the strength and simplicity needed for a reliable single-speed setup.
Geometry
Long
Stack
580
Reach
430
Headtube Angle
69°
Headtube Length
120
Seattube Length
320
Seattube Angle
69°
Top Tube Effective
646
BB Height
317
BB Drop
22
Chainstay
395
Wheelbase
1083
Standover Height
400
Fork Offset
42
Seatpost Diameter
30.9
Handlebar Width
750
Stem Length
40
Crank Length
170
Component
Specification
Frame
Series 3 6061 Aluminum, 26” Wheels, 135x10mm Horizontal Single Speed Dropouts, 73mm Threaded BB, ISCG 05 Tabs
Fork
Marin Series 2 CroMo 26", Suspension Corrected, 100x9mm Dropouts
Marin Riser, 6061 Double Butted Aluminum, 31.8mm Center Bulge, 38mm Rise, 750mm Width, 4º Up, 9º Back
Stem
Marin 3D Forged Alloy, 31.8mm Clamp, 40mm Extension
Grips
Marin MTN, Closed End
Headset
FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
Seatpost
Marin Alloy, 30.9mm
Saddle
Marin DJ Saddle
Pedals
Alloy Platform
Extras
Marin Chain Tension Device
Delivery
At Clarkes of Cavan, we are passionate about getting your order to you quickly and safely and we understand it is important for you to know when your order will be delivered.
Delivery Cost & Times
Free delivery on orders over €99 applies in most cases (Ireland), where a product is excluded from this it will be noted on the product page. Some items are large and cannot be sent for free. Standard delivery costs apply to all other countries.
You will be provided with tracking information so you can keep an eye on your order at all times. Delivery of Bulk items (Pallet) may take a day or two extra.
Country
Delivery Time
Ireland
2-3 Business Days
United Kingdom
3-5 Business Days
Austria
5-7 Business Days
Australia
7-10 Business Days
Belgium
5-7 Business Days
Bulgaria
7-10 Business Days
Croatia
7-10 Business Days
Cyprus
7-10 Business Days
Czech Republic
5-7 Business Days
Denmark
5-7 Business Days
Estonia
7-10 Business Days
Finland
7-10 Business Days
France
3-5 Business Days
Germany
3-5 Business Days
Greece
7-10 Business Days
Hungary
5-7 Business Days
Iceland
7-10 Business Days
Italy
5-7 Business Days
Latvia
7-10 Business Days
Lithuania
7-10 Business Days
Luxembourg
5-7 Business Days
Malta
7-10 Business Days
Netherlands
3-5 Business Days
Norway
7-10 Business Days
Poland
5-7 Business Days
Portugal
5-7 Business Days
Romania
7-10 Business Days
Slovakia
5-7 Business Days
Slovenia
7-10 Business Days
Spain
5-7 Business Days
Sweden
7-10 Business Days
Switzerland
7-10 Business Days
United States
10-15 Business Days
Some items we sell will take more time because of size and dispatch location. This will be noted on the product page or on checkout.
Tracking Information
When your order is send you will be provided with tracking information from the relevant courier. This tracking information will be sent to the email provided when on the account registered, or the email used in the checkout process.
Clarkes of Cavan use An Post, UPS, Royal Mail and DSV pallet delivery.
If you still need further assistance regarding your delivery please contact the online department on 049 433 2166 or via email at online@clarkesofcavan.ie
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From local pump tracks to street sessions and backyard jumps, the Alcatraz 1 delivers top-tier performance with a bombproof build. Its Series 3 6061 aluminum frame offers outstanding stiffness for aggressive riding and unmatched durability for hard landings and big sends. The short chainstays make manuals, spins, and technical tricks easier than ever – perfect for progressing your skills.
Featuring a suspension-corrected Marin CroMo fork, ambidextrous cable routing, and a dirt jump-specific geometry, this bike is engineered for control and confidence. With 135x10mm horizontal dropouts, you get the strength and simplicity needed for a reliable single-speed setup.
Geometry
Long
Stack
580
Reach
430
Headtube Angle
69°
Headtube Length
120
Seattube Length
320
Seattube Angle
69°
Top Tube Effective
646
BB Height
317
BB Drop
22
Chainstay
395
Wheelbase
1083
Standover Height
400
Fork Offset
42
Seatpost Diameter
30.9
Handlebar Width
750
Stem Length
40
Crank Length
170
Component
Specification
Frame
Series 3 6061 Aluminum, 26” Wheels, 135x10mm Horizontal Single Speed Dropouts, 73mm Threaded BB, ISCG 05 Tabs
Fork
Marin Series 2 CroMo 26", Suspension Corrected, 100x9mm Dropouts
Marin Riser, 6061 Double Butted Aluminum, 31.8mm Center Bulge, 38mm Rise, 750mm Width, 4º Up, 9º Back
Stem
Marin 3D Forged Alloy, 31.8mm Clamp, 40mm Extension
Grips
Marin MTN, Closed End
Headset
FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1/8" x 1 1/2”
Seatpost
Marin Alloy, 30.9mm
Saddle
Marin DJ Saddle
Pedals
Alloy Platform
Extras
Marin Chain Tension Device
At Clarkes of Cavan, we are passionate about getting your order to you quickly and safely and we understand it is important for you to know when your order will be delivered.
Delivery Cost & Times
Free delivery on orders over €99 applies in most cases (Ireland), where a product is excluded from this it will be noted on the product page. Some items are large and cannot be sent for free. Standard delivery costs apply to all other countries.
You will be provided with tracking information so you can keep an eye on your order at all times. Delivery of Bulk items (Pallet) may take a day or two extra.
Country
Delivery Time
Ireland
2-3 Business Days
United Kingdom
3-5 Business Days
Austria
5-7 Business Days
Australia
7-10 Business Days
Belgium
5-7 Business Days
Bulgaria
7-10 Business Days
Croatia
7-10 Business Days
Cyprus
7-10 Business Days
Czech Republic
5-7 Business Days
Denmark
5-7 Business Days
Estonia
7-10 Business Days
Finland
7-10 Business Days
France
3-5 Business Days
Germany
3-5 Business Days
Greece
7-10 Business Days
Hungary
5-7 Business Days
Iceland
7-10 Business Days
Italy
5-7 Business Days
Latvia
7-10 Business Days
Lithuania
7-10 Business Days
Luxembourg
5-7 Business Days
Malta
7-10 Business Days
Netherlands
3-5 Business Days
Norway
7-10 Business Days
Poland
5-7 Business Days
Portugal
5-7 Business Days
Romania
7-10 Business Days
Slovakia
5-7 Business Days
Slovenia
7-10 Business Days
Spain
5-7 Business Days
Sweden
7-10 Business Days
Switzerland
7-10 Business Days
United States
10-15 Business Days
Some items we sell will take more time because of size and dispatch location. This will be noted on the product page or on checkout.
Tracking Information
When your order is send you will be provided with tracking information from the relevant courier. This tracking information will be sent to the email provided when on the account registered, or the email used in the checkout process.
Clarkes of Cavan use An Post, UPS, Royal Mail and DSV pallet delivery.
If you still need further assistance regarding your delivery please contact the online department on 049 433 2166 or via email at online@clarkesofcavan.ie
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