Lowest0.71:1
Highest3.00:1
Total range425%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 26×2.1; rear size isn’t listed.
Velopedia Bicycle Archive
2003 GT Timberline
Original specifications: Mountain Mix drivetrain · 26" wheels.
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At a glance
Archive #38558- Model year
- 2003
- Category
- Mountain
- Original MSRP
- $299.00
- Sizes
- L, M, S, womens medium, womens small, XL
- In this record
- 26 specifications · archived image · original MSRP
Model history 14 other years
Browse other years
Compare side by side
Identification clues
2003 archived details
- Frame
- 7000 aluminum
- Original equipment
- Mountain Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original build7000 aluminum · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | 7000 aluminum |
| Fork | SR XCC-D |
| Fork Material | Aluminum, single crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | SRAM MRX |
| Front Derailleur | Shimano C050 |
| Rear Derailleur | Shimano C050 |
| Crankset | Suntour XR-180, 24/34/42 teeth |
| Bottom Bracket | Sealed |
| Rear Cogs | 7-speed, 14 - 34 teeth |
| Chain | Shimano CN-UG50, 1/2 x 3/32" |
| Pedals | MTB nylon |
Brakes
| Brakes | Aluminum linear-pull brakes, aluminum linear-pull levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless sealed mechanism |
|---|---|
| Handlebar | Aluminum, rise |
| Handlebar Extensions | Not included |
| Stem | Aluminum, adjustable |
| Saddle | GT Comfort |
| Seatpost | Aluminum, suspension |
Wheels & Tires
| Hubs | Aluminum QR |
|---|---|
| Rims | Aluminum |
| Spokes | Stainless steel, 14ga. (2.0mm) straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.10" GT Guardian |
| 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
26 x 2.10" GT Guardian
Replacement search: 26x2.1 bicycle tire Before ordering: Check rim type and tire clearance.
Aluminum linear-pull brakes
aluminum linear-pull levers
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 2.10" GT Guardian
- Drivetrain
- 7-speed
- Bottom bracket / shell
- Sealed
Equipment inspection checks 12 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: SR XCC-D · Aluminum, single crown
Suspension
Evaluate the suspension →Archived: Fork: SR XCC-D
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: SRAM MRX · Front derailleur: Shimano C050 · Rear derailleur: Shimano C050 · Crankset: Suntour XR-180, 24/34/42 teeth · Bottom bracket: Sealed · Rear cogs: 7-speed, 14 - 34 teeth · Chain: Shimano CN-UG50, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Aluminum linear-pull brakes, aluminum linear-pull levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Aluminum · Hubs: Aluminum QR · Front tire: 26 x 2.10" GT Guardian
Controls and contact points
Archived: Headset: 1 1/8" threadless sealed mechanism · Handlebar: Aluminum, rise · Stem: Aluminum, adjustable · Seatpost: Aluminum, suspension · Saddle: GT Comfort · Pedals: MTB nylon
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Market Snapshot
Checked Nov 9, 2026We may earn a commission from purchases through these eBay links.
GT Timberline 26" Mountain Bike
Used · Fixed price · USD 300.00
Seller size: 18 in
Model year not confirmed
GT Timberline 26in Steel Mountain Bike 21-Speed Cantilever QR Wheels Blue/Black
Used · Fixed price · offers accepted · USD 220.00
Model year not confirmed
Model-family used asking$260.00Median asking · middle 50% $162.50–$357.49 · 10 listings
Price history
Model-family used asking prices
View observation data
| Observed | Median | Middle 50% | Matches |
|---|---|---|---|
| Nov 9, 2026 | $260.00 | $162.50–$357.49 | 10 |
| Sep 29, 2026 | $175.00 | $149.75–$350.00 | 8 |
| Sep 16, 2026 | $175.00 | $149.75–$350.00 | 8 |
| Sep 9, 2026 | $199.00 | $150.00–$300.00 | 9 |
| Sep 2, 2026 | $199.50 | $150.00–$300.00 | 10 |
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.