Lowest0.86:1
Highest3.82:1
Total range445%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Rear tire: 26×2.
Velopedia Bicycle Archive
1998 Marin Bobcat Trail
Original specifications: Shimano Alivio · 7-speed · mechanical rear derailleur · 26" wheels · legacy reference geometry.
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At a glance
Archive #70300- Model year
- 1998
- Category
- Mountain
- Original MSRP
- $399.00
- Sizes
- 11.5", 13.5", 15.5", 17.5", 19", 20.5"
- Colors
- Lemon Yellow
- Geometry
- Legacy reference
- In this record
- 28 specifications · archived image · original MSRP · geometry
Model history 18 other years
Browse other years
Compare side by side
Identification clues
1998 archived details
- Published colors
- Lemon Yellow
- Frame
- 7005 aluminum
- Original equipment
- Mountain Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build7005 aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 7005 aluminum |
| Fork | Marin |
| Fork Material | Chromoly, unicrown crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Shimano Alivio EZ Fire Plus |
| Front Derailleur | Shimano Alivio top-swing, bottom-pull/clamp-on 35.0mm |
| Rear Derailleur | Shimano Alivio |
| Crankset | Shimano AceraX, 24/34/42 teeth |
| Bottom Bracket | Shimano BB-LP26, 110mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 7-speed, 11 - 28 teeth |
| Chain | KMC UG-50, 1/2 x 3/32" |
| Pedals | Resin |
Brakes
| Brakes | Aluminum linear-pull brakes, Shimano Alivio levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless steel |
|---|---|
| Handlebar | Aluminum |
| Handlebar Extensions | Not included |
| Stem | Marin Lite aluminum |
| Saddle | Marin Comfort |
| Seatpost | Aluminum micro-adjust, 30.0mm diameter |
Wheels & Tires
| Hubs | Shimano Altus |
|---|---|
| Rims | Alex VP-20F, 36-hole |
| Spokes | Steel, 1.8mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.15" Geax Warp 215 |
| Rear Tire | 26 x 2.00" Geax Hook 200 |
| Wheel Size | 26" wheels |
No specifications match. Try a component name or clear your search.
Geometry
Historical measurements. Frame size unknown.
Reference drawing
Size
Measurement
Measurement
—
Select an available measurement to locate it on the frame.
All geometry measurementsLegacy reference · 6 measurements
| Measurement | Legacy reference |
|---|---|
| Top tube | 551.2 mm |
| Head-tube angle | 71° |
| Seat-tube angle | 74° |
| Chainstay / rear center | 425.4 mm |
| Wheelbase | 1046.5 mm |
| Fork offset / rake | 44.4 mm |
Frame size not recorded.
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
Aluminum linear-pull brakes
Shimano Alivio levers
Shimano BB-LP26
110mm spindle
Shimano AceraX
24/34/42 teeth
More parts (5)Fewer parts
Shimano Alivio
Shimano Alivio EZ Fire Plus
Aluminum micro-adjust
30.0mm diameter
Alex VP-20F
36-hole
Shimano Altus
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
- Front: 26 x 2.15" Geax Warp 215, Rear: 26 x 2.00" Geax Hook 200
- Drivetrain
- 7-speed
- Seatpost diameter
- 30 mm
- Bottom bracket / shell
- Shimano BB-LP26, 110mm spindle · 68mm English
Equipment inspection checks 10 checks based on 5 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: Marin · Chromoly, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Shimano Alivio EZ Fire Plus · Front derailleur: Shimano Alivio top-swing, bottom-pull/clamp-on 35.0mm · Rear derailleur: Shimano Alivio · Crankset: Shimano AceraX, 24/34/42 teeth · Bottom bracket: Shimano BB-LP26, 110mm spindle · Rear cogs: 7-speed, 11 - 28 teeth · Chain: KMC UG-50, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Aluminum linear-pull brakes, Shimano Alivio levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Alex VP-20F, 36-hole · Hubs: Shimano Altus · Front tire: Front: 26 x 2.15" Geax Warp 215, Rear: 26 x 2.00" Geax Hook 200
Controls and contact points
Archived: Headset: 1 1/8" threadless steel · Handlebar: Aluminum · Stem: Marin Lite aluminum · Seatpost: Aluminum micro-adjust, 30.0mm diameter · Saddle: Marin Comfort · Pedals: Resin
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Market Snapshot
Checked Nov 10, 2026We may earn a commission from purchases through these eBay links.
Marin Bobcat Trail 27.5" MTB 17" Aluminum Front Susp Blue/Yellow Mech Disc
Used · Fixed price · offers accepted · USD 400.00
Seller size: 17 in
Model year not confirmed
Marin Bobcat Trail 3 Hardtail Mountain Bike 27.5" Blue/Yellow/Magenta, Medium
New · Fixed price · USD 679.00
Seller size: Medium
Shipping shown: $174.99; confirm for your destination.
Model year not confirmed
Model-family used asking$400.00Median asking · middle 50% $350.00–$527.12 · 5 listings
Model-family new asking$799.99Median asking · middle 50% $699.99–$799.99 · 9 listings
Price history
Model-family used asking prices
View observation data
| Observed | Median | Middle 50% | Matches |
|---|---|---|---|
| Nov 10, 2026 | $400.00 | $350.00–$527.12 | 5 |
| Sep 28, 2026 | $513.56 | $500.00–$544.28 | 6 |
| Sep 17, 2026 | $527.12 | $500.00–$550.00 | 5 |
| Sep 9, 2026 | $550.00 | $527.12–$600.00 | 5 |
| Sep 2, 2026 | $513.56 | — | 4 |
| Aug 29, 2026 | $513.56 | — | 4 |
Asking prices, not completed sales. Shipping and tax excluded.
Find this bike on eBay
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.