Velopedia Bicycle Archive
1993 Basso Astra/Dura-Ace
Original specifications: Shimano Dura-Ace STI drivetrain · 20.4 lb published weight · legacy reference geometry.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 1993
- Category
- Road
- Original MSRP
- $3,450.00
- Sizes
- 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62
- Weight
- 20.4 lb
- Geometry
- Legacy reference
- In this record
- 19 specifications · original MSRP · geometry
- Archive ID
- 43969
Original buildColumbus OS Extra-Lite · Shimano Dura-Ace STI
Frameset
| Frame Construction | Lugged steel |
|---|---|
| Frame Material | Columbus OS Extra-Lite |
| Fork | Columbus OS Extra Light |
Drivetrain
| Component Group | Shimano Dura-Ace STI |
|---|---|
| Shifters | Shimano Dura-Ace STI |
| Front Derailleur | Shimano Dura-Ace |
| Rear Derailleur | Shimano Dura-Ace |
| Crankset | Shimano Dura-Ace, 39/53 teeth |
| Rear Cogs | 8-speed, 12 - 21 teeth |
| Chain | Shimano CN-7401 |
| Pedals | Shimano Dura-Ace clipless |
Brakes
| Brakes | Shimano Dura-Ace brakes, levers |
|---|
Cockpit & Contact Points
| Handlebar | Cinelli |
|---|---|
| Stem | Cinelli 1/A |
| Saddle | Flite Titanium |
| Seatpost | Shimano Dura-Ace |
Wheels & Tires
| Hubs | Shimano Dura-Ace |
|---|---|
| Rims | Campagnolo Omega 19 Aero |
| Front Tire | Michelin Comp HD |
Geometry
Historical measurements. Frame size unknown.
Reference drawing
Select an available measurement to locate it on the frame.
All geometry measurementsLegacy reference · 6 measurements
| Measurement | Legacy reference |
|---|---|
| Top tube | 560 mm |
| Head-tube angle | 74° |
| Seat-tube angle | 74° |
| Chainstay / rear center | 415 mm |
| Wheelbase | 987 mm |
| Fork offset / rake | 48 mm |
Frame size not recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
Speed unavailable: wheel or tire size is missing or unclear.
How it works
Ratio = chainring teeth ÷ rear sprocket teeth. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Parts & serviceability
Find replacement parts

SRAM PC-850 Chain One Color, 8 Speed
8 Speed
Replacement option · verify fit
More parts (6)
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
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 Basso Astra/Dura-Ace · Road race & triathlon · Published sizes: 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62
Frame and fork
Inspect the frame and fork →Archived: Frame: Lugged steel · Fork: Columbus OS Extra Light
Drivetrain
Check drivetrain wear →Archived: Group: Shimano Dura-Ace STI · Shifters: Shimano Dura-Ace STI · Front derailleur: Shimano Dura-Ace · Rear derailleur: Shimano Dura-Ace · Crankset: Shimano Dura-Ace, 39/53 teeth · Rear cogs: 8-speed, 12 - 21 teeth · Chain: Shimano CN-7401
Brakes
Inspect the brakes →Archived: Brakes: Shimano Dura-Ace brakes, levers
Wheels and tires
Check wheels and tires →Archived: Rims: Campagnolo Omega 19 Aero · Hubs: Shimano Dura-Ace · Front tire: Michelin Comp HD
Controls and contact points
Archived: Handlebar: Cinelli · Stem: Cinelli 1/A · Seatpost: Shimano Dura-Ace · Saddle: Flite Titanium · Pedals: Shimano Dura-Ace clipless
Before and during the test ride
Follow the full used-bike inspection order →Have you owned this bike?Help preserve its real-world history by sharing your owner experience.
Share the details that would help another rider understand how this model fits, rides and holds 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.
Checking current listings…
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.