Lowest0.86:1
Highest3.82:1
Total range445%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 26×1.95; rear size isn’t listed.
Velopedia Bicycle Archive
1998 Wheeler 1800
Original specifications: Shimano Altus · 7-speed · mechanical rear derailleur · 26" wheels · legacy reference geometry.
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No archive photo is available for this record.
At a glance
Archive #70719- Model year
- 1998
- Category
- Mountain
- Original MSRP
- $284.00
- Sizes
- 14.5", 16", 18", 19.5", 21", 22.5"
- Colors
- Blue
- Geometry
- Legacy reference
- In this record
- 25 specifications · original MSRP · geometry
Model history 1 other year
Browse other years
Compare side by side
Identification clues
1998 archived details
- Published colors
- Blue
- Frame
- Chromoly/hi-tensile steel
- Original equipment
- Mountain Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildChromoly/hi-tensile steel · Mountain Mix · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Chromoly/hi-tensile steel |
| Fork | Wheeler |
| Fork Material | Chromoly/hi-tensile steel, unicrown crown |
Drivetrain
| Component Group | Mountain Mix |
|---|---|
| Shifters | Grip Shift MRX-170 |
| Front Derailleur | Shimano Tourney TY-22 top-swing, top-pull |
| Rear Derailleur | Shimano Altus |
| Crankset | Shimano Altus, 24/34/42 teeth |
| Rear Cogs | 7-speed, 11 - 28 teeth |
| Chain | 1/2 x 3/32" |
| Pedals | Resin |
Brakes
| Brakes | Tektro linear-pull brakes, Shimano Alivio ST EF-28 levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" threadless Aheadset |
|---|---|
| Handlebar | Aluminum |
| Handlebar Extensions | Not included |
| Stem | Wheeler Z-Trax |
| Saddle | Wheeler |
| Seatpost | Alutrax aluminum |
Wheels & Tires
| Hubs | Front: aluminum, Q/R, Rear: Shimano RM40 |
|---|---|
| Rims | Aluminum, 36-hole |
| Spokes | Stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 1.95" |
| 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 · 5 measurements
| Measurement | Legacy reference |
|---|---|
| Top tube | 555 mm |
| Head-tube angle | 70.5° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 435 mm |
| Wheelbase | 1005 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
1/2 x 3/32"
Replacement search: 7-speed bicycle chain Before ordering: Check chain width and length.
26 x 1.95"
Replacement search: 26x1.95 bicycle tire Before ordering: Check rim type and tire clearance.
Tektro linear-pull brakes
Shimano Alivio ST EF-28 levers
More parts (3)Fewer parts
Shimano Altus
24/34/42 teeth
Shimano Tourney TY-22 top-swing
top-pull
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
- 26 x 1.95"
- Drivetrain
- 7-speed
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: Wheeler · Chromoly/hi-tensile steel, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Mountain Mix · Shifters: Grip Shift MRX-170 · Front derailleur: Shimano Tourney TY-22 top-swing, top-pull · Rear derailleur: Shimano Altus · Crankset: Shimano Altus, 24/34/42 teeth · Rear cogs: 7-speed, 11 - 28 teeth · Chain: 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Tektro linear-pull brakes, Shimano Alivio ST EF-28 levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Aluminum, 36-hole · Hubs: Front: aluminum, Q/R, Rear: Shimano RM40 · Front tire: 26 x 1.95"
Controls and contact points
Archived: Headset: 1 1/8" threadless Aheadset · Handlebar: Aluminum · Stem: Wheeler Z-Trax · Seatpost: Alutrax aluminum · Saddle: Wheeler · Pedals: Resin
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Market Snapshot
Checked Nov 4, 2026We may earn a commission from purchases through these eBay links.
NOS Wheeler 1800 MTB bike 18 in Shimano Acera CPI Cyclone Quando Kenda Promax
Used · Fixed price · offers accepted · USD 475.00
Seller size: 18 in
Shipping shown: $200.00; confirm for your destination.
Model year not confirmed
Asking prices, not completed sales. Shipping and tax excluded.
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- Mountain bike, non-suspension
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.