Ratio2.25:1
Estimated speed At 90 RPM
Gear
Uses front tire 26×2.4; rear size isn’t listed.
Velopedia Bicycle Archive
2009 Marin Alcatraz
Original specifications: Mountain Mix drivetrain · 26" wheels.
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At a glance
Archive #17682- Model year
- 2009
- Category
- Mountain
- Original MSRP
- $1,199.99
- Colors
- Black Midnight Matte
- In this record
- 22 specifications · archived image · original MSRP
Model history 2 other years
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Identification clues
2009 archived details
- Published colors
- Black Midnight Matte
- Frame
- 4130 chromoly
- Original equipment
- Mountain Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build4130 chromoly · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 4130 chromoly |
| Fork | Marzocchi Dirt Jumper 3, 100mm travel |
| Fork Material | Single |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Crankset | FSA X-Drive BMX, 36 teeth |
| Bottom Bracket | FSA X-Drive Euro |
| Rear Cogs | 1-speed, 16 teeth |
| Chain | Kmc |
| Pedals | BMX Platform |
Brakes
| Brakes | Avid Juicy 3 w/185mm Rotor front/Avid Juicy 3 w/160mm rotor rear brakes, Avid Juicy 3 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" FSA Hammer |
|---|---|
| Handlebar | FSA Maximus Riser |
| Handlebar Extensions | Not included |
| Stem | Gravity DH |
| Saddle | WTB Jaxon V |
| Seatpost | FSA FR-200, 27.2mm diameter |
Wheels & Tires
| Hubs | Front: Pro Alloy Quad Sealed 20mm Through Axle, Rear: Single Speed DJ |
|---|---|
| Rims | WTB Dual Duty Free Ride, 32-hole |
| Spokes | WTB stainless, 14ga. (2.0mm) |
| Front Tire | 26 x 2.40" Maxxis Holy Roller |
| Wheel Size | 26" wheels |
No specifications match. Try a component name or clear your search.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
FSA FR-200
27.2mm diameter
Retailer offers
Race Face Ride XC Seatpost Black, 27.2x375mm
Replacement option
FSA X-Drive Euro
More parts (5)Fewer parts
WTB Jaxon V
FSA X-Drive BMX
36 teeth
FSA Maximus Riser
1 1/8" FSA Hammer
WTB Dual Duty Free Ride
32-hole
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- 26 x 2.40" Maxxis Holy Roller
- Drivetrain
- 1-speed
- Seatpost diameter
- 27.2 mm
- Bottom bracket / shell
- FSA X-Drive Euro
Equipment inspection checks 11 checks based on 6 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Marzocchi Dirt Jumper 3, 100mm travel · Single
Suspension
Evaluate the suspension →Archived: Fork: Marzocchi Dirt Jumper 3, 100mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Crankset: FSA X-Drive BMX, 36 teeth · Bottom bracket: FSA X-Drive Euro · Rear cogs: 1-speed, 16 teeth · Chain: KMC
Brakes
Inspect the brakes →Archived: Brakes: Avid Juicy 3 w/185mm Rotor front/Avid Juicy 3 w/160mm rotor rear brakes, Avid Juicy 3 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: WTB Dual Duty Free Ride, 32-hole · Hubs: Front: Pro Alloy Quad Sealed 20mm Through Axle, Rear: Single Speed DJ · Front tire: 26 x 2.40" Maxxis Holy Roller
Controls and contact points
Archived: Headset: 1 1/8" FSA Hammer · Handlebar: FSA Maximus Riser · Stem: Gravity DH · Seatpost: FSA FR-200, 27.2mm diameter · Saddle: WTB Jaxon V · Pedals: BMX Platform
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.