Estimate uses the published front tire 26×1.9 as a proxy, corroborated by the wheel size. Rear tire size is not published or verified. Approximate circumference; actual rollout varies with tire and pressure. Theoretical, not a maximum achievable speed.
Velopedia Bicycle Archive
1993 Royce Union Vesuvious
Original specifications: Shimano Altus C20 drivetrain · 26" wheels · 31 lb published weight.
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At a glance
- Model year
- 1993
- Category
- Mountain
- Original MSRP
- $309.00
- Sizes
- 18, 20
- Weight
- 31 lb
- Geometry
- Legacy reference
- In this record
- 20 specifications · original MSRP · geometry
- Archive ID
- 44621
Original buildSuper OS high-tensile steel · Shimano Altus C20 · 26" wheels
Frameset
| Frame Construction | TIG-welded steel |
|---|---|
| Frame Material | Super OS high-tensile steel |
| Fork | High-tensile steel |
Drivetrain
| Component Group | Shimano Altus C20 |
|---|---|
| Shifters | Shimano Altus C20 Rapidfire |
| Front Derailleur | Shimano Altus C20 |
| Rear Derailleur | Shimano Altus C20 |
| Crankset | Tracer, 28/38/48 teeth |
| Rear Cogs | 6-speed, 13 - 30 teeth |
| Chain | Shimano |
| Pedals | ATB resin |
Brakes
| Brakes | Shimano cantilevers brakes, levers |
|---|
Cockpit & Contact Points
| Handlebar | Flat ATB |
|---|---|
| Stem | Atb |
| Saddle | Gel EM ATB |
| Seatpost | Qr |
Wheels & Tires
| Hubs | Alloy Q/R |
|---|---|
| Rims | Alloy, 36-hole |
| Front Tire | 26 x 1.90" gumwall |
| Wheel Size | 26" wheels |
Geometry
Model-level measurements; the frame size was not recorded. Use these as a historical reference, not for size-specific fit.
Reference frame view
Select an available measurement to locate it on the frame.
All geometry measurementsLegacy reference · 6 measurements
| Measurement | Legacy reference |
|---|---|
| Top tube | 558.8 mm |
| Head-tube angle | 70° |
| Seat-tube angle | 70° |
| Chainstay / rear center | 426.7 mm |
| Wheelbase | 1051.6 mm |
| Fork offset / rake | 50.8 mm |
The preserved source contains one model-level geometry set without an identified frame size.
Gearing
Lower ratios provide more mechanical advantage for climbing. Higher ratios turn the rear wheel farther with each crank revolution.
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 1993 Royce Union Vesuvious · Mountain bike, non-suspension · Published sizes: 18, 20
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded steel · Fork: High-tensile steel
Drivetrain
Check drivetrain wear →Archived: Group: Shimano Altus C20 · Shifters: Shimano Altus C20 Rapidfire · Front derailleur: Shimano Altus C20 · Rear derailleur: Shimano Altus C20 · Crankset: Tracer, 28/38/48 teeth · Rear cogs: 6-speed, 13 - 30 teeth · Chain: Shimano
Brakes
Inspect the brakes →Archived: Brakes: Shimano cantilevers brakes, levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Alloy, 36-hole · Hubs: Alloy Q/R · Front tire: 26 x 1.90" gumwall
Controls and contact points
Archived: Handlebar: Flat ATB · Stem: ATB · Seatpost: QR · Saddle: Gel EM ATB · Pedals: ATB resin
Before and during the test ride
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.