Lowest1.47:1
Highest3.14:1
Total range214%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Rear tire: 20×1.9.
Velopedia Bicycle Archive
1993 Royce Union Avalanche
Original specifications: Shimano Tourney drivetrain · 20" wheels · 32 lb published weight.
Planning to sell? Draft your listing
No archive photo is available for this record.
At a glance
Archive #43250- Model year
- 1993
- Category
- Kids
- Original MSRP
- $169.00
- Sizes
- 13
- Weight
- 32 lb
- In this record
- 21 specifications · original MSRP
Original buildHigh-tensile steel · Shimano Tourney · 20" wheels
Frameset
| Frame Construction | TIG-welded steel |
|---|---|
| Frame Material | High-tensile steel |
| Fork | High-tensile steel |
Drivetrain
| Component Group | Shimano Tourney |
|---|---|
| Shifters | Shimano thumbshifters |
| Front Derailleur | Shimano Tourney |
| Rear Derailleur | Shimano Tourney |
| Crankset | One-piece crank, 44 teeth |
| Rear Cogs | 5-speed, 14 - 30 teeth |
| Chain | Kmc |
| Pedals | ATB resin |
Brakes
| Brakes | Sidepull brakes, levers |
|---|
Cockpit & Contact Points
| Handlebar | ATB flat |
|---|---|
| Stem | Atb |
| Saddle | Atb |
| Seatpost | Steel |
Wheels & Tires
| Hubs | Alloy |
|---|---|
| Rims | Steel, 36-hole |
| Front Tire | 20 x 1.90" gumwall |
| Rear Tire | 20 x 1.90" |
| 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
20 x 1.90" gumwall
Replacement search: 20x1.9 bicycle tire Before ordering: Check rim type and tire clearance.
Shimano Tourney
Shimano Tourney
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: 20 x 1.90" gumwall, Rear: 20 x 1.90"
- Drivetrain
- 5-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 steel · Fork: High-tensile steel
Drivetrain
Check drivetrain wear →Archived: Group: Shimano Tourney · Shifters: Shimano thumbshifters · Front derailleur: Shimano Tourney · Rear derailleur: Shimano Tourney · Crankset: One-piece crank, 44 teeth · Rear cogs: 5-speed, 14 - 30 teeth · Chain: KMC
Brakes
Inspect the brakes →Archived: Brakes: Sidepull brakes, levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 20" wheels · Rims: Steel, 36-hole · Hubs: Alloy · Front tire: Front: 20 x 1.90" gumwall, Rear: 20 x 1.90"
Controls and contact points
Archived: Handlebar: ATB flat · Stem: ATB · Seatpost: Steel · Saddle: ATB · Pedals: ATB resin
Have you owned this model?Help document firsthand fit, ride and maintenance details that may no longer be available.
This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held up over time. Velopedia reviews every contribution before publication.
Already contributed? Send me a fresh private edit link
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
No recent price sample is available for this bike. Check eBay for matching listings.
Find this bike on eBay
Search eBay US; check the model year, size and installed components. We may earn a commission from purchases.
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.