Lowest0.86:1
Highest3.00:1
Total range350%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 20×1.95; rear size isn’t listed.
Velopedia Bicycle Archive
2008 Marin Bayview Trail
Original specifications: Shimano Altus · 7-speed · mechanical rear derailleur · 20" wheels.
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At a glance
Archive #13211- Model year
- 2008
- Category
- Kids
- Original MSRP
- $325.00
- Colors
- Gloss Granite, Gloss Brick
- In this record
- 26 specifications · archived image · original MSRP
Model history 3 other years
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Identification clues
2008 archived details
- Published colors
- Gloss Granite, Gloss Brick
- Frame
- 6061 Double Butted Aluminum
- Original equipment
- Mountain Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build6061 Double Butted Aluminum · Mountain Mix · 20" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 6061 Double Butted Aluminum |
| Fork | Spinner Grind 1, 70mm travel |
| Fork Material | Single |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano EF-50 EZ Fire Integrated |
| Front Derailleur | Shimano C050 |
| Rear Derailleur | Shimano Altus |
| Crankset | TruVativ X-Flow 3.0, 24/34/42 teeth |
| Bottom Bracket | Truvativ sealed cartridge |
| Cassette | Shimano |
| Rear Cogs | 7-speed, 14 - 28 teeth |
| Chain | Shimano UG51 |
| Pedals | Composite |
Brakes
| Brakes | Forged Alloy Linear Pull brakes, Shimano EF-50 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" Ritchey LB |
|---|---|
| Handlebar | Double Butted 6061 Alloy riser |
| Handlebar Extensions | Not included |
| Stem | Forged Alloy |
| Saddle | Kids 24" |
| Seatpost | Alloy Micro Adjust, 27.2mm diameter |
Wheels & Tires
| Hubs | Alloy Double Sealed QR |
|---|---|
| Rims | Alloy, 32-hole |
| Spokes | Stainless steel, 14ga. (2.0mm) |
| Front Tire | 20 x 1.95" Kenda All Condition |
| Wheel Size | 20" 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
Alloy Micro Adjust
27.2mm diameter
Retailer offers
Race Face Ride XC Seatpost Black, 27.2x375mm
Replacement option
More parts (3)Fewer parts
Forged Alloy Linear Pull brakes
Shimano EF-50 levers
Shimano Altus
1 1/8" Ritchey LB
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
- 20 x 1.95" Kenda All Condition
- Drivetrain
- 7-speed
- Seatpost diameter
- 27.2 mm
- Bottom bracket / shell
- Truvativ sealed cartridge
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: Spinner Grind 1, 70mm travel · Single
Suspension
Evaluate the suspension →Archived: Fork: Spinner Grind 1, 70mm travel
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano EF-50 EZ Fire Integrated · Front derailleur: Shimano C050 · Rear derailleur: Shimano Altus · Crankset: TruVativ X-Flow 3.0, 24/34/42 teeth · Bottom bracket: Truvativ sealed cartridge · Cassette: Shimano · Rear cogs: 7-speed, 14 - 28 teeth · Chain: Shimano UG51
Brakes
Inspect the brakes →Archived: Brakes: Forged Alloy Linear Pull brakes, Shimano EF-50 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 20" wheels · Rims: Alloy, 32-hole · Hubs: Alloy Double Sealed QR · Front tire: 20 x 1.95" Kenda All Condition
Controls and contact points
Archived: Headset: 1 1/8" Ritchey LB · Handlebar: Double Butted 6061 Alloy riser · Stem: Forged Alloy · Seatpost: Alloy Micro Adjust, 27.2mm diameter · Saddle: Kids 24" · Pedals: Composite
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.