Alcatraz
Marin
Dirt Jump
Alcatraz is an alloy dirt jump mountain bike (2024), from Marin, part of the Alcatraz family. This model is best for a wide range of riders thanks to its fit flexibility, with a balanced riding position, with a surface profile that is more at home in gravity-focused bike park riding. Its strongest points in the MatchBikes metrics are strong value-for-money versus many similar bikes, good fit flexibility for dialing in rider position, and balanced, versatile speed for everyday riding. At the same time, the main limitation versus more focused builds is more of a flat-to-rolling terrain bias than a climbing focus. This summary is a starting point—compare this bike on MatchBikes.com with similar bikes.
Rating

Score Summary
Performance
Built for speed and efficiency
Fit
Dialed-in Fit & Comfort
Value
Specifications
General
Frame
Drivetrain
Wheels
Brakes
Cockpit
Seat
Geometry
| Measurement | Short | Long |
|---|---|---|
| Stack Reach Ratio | 1.49 mm | 1.34 mm |
| Bottom Bracket Height | 317 mm | 317 mm |
| Front Center | 643 mm | 689 mm |
| Rake | 42 mm | 42 mm |
| Trail | 87 mm | 88 mm |
| Stack | 580 mm | 585 mm |
| Reach | 390 mm | 435 mm |
| Top Tube Length | 605 mm | 651 mm |
| Seat Tube Angle | 69 ° | 69 ° |
| Seat Tube Length | 320 mm | 320 mm |
| Head Tube Angle | 69 ° | 69 ° |
| Head Tube Length | 115 mm | 120 mm |
| Chainstay Length | 400 mm | 400 mm |
| Wheelbase | 1042 mm | 1088 mm |
| Bottom Bracket Drop | 22 mm | 22 mm |
| Standover Height | 375 mm | 405 mm |
| Wheels | 26" | 26" |




























































