Lowest1.00:1
Highest3.43:1
Total range343%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 700C×40; rear size isn’t listed.
Velopedia Bicycle Archive
1994 Diamondback Approach
Original specifications: Shimano Altus C50 / GripShift drivetrain · 700c wheels · legacy reference geometry.
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No archive photo is available for this record.
At a glance
Archive #13020- Model year
- 1994
- Category
- Hybrid
- Original MSRP
- $336.00
- Sizes
- 15", 17", 19", 21", 23", womens 17", womens 19"
- Geometry
- Legacy reference
- In this record
- 20 specifications · original MSRP · geometry
Model history 4 other years
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Identification clues
1994 archived details
- Frame
- Chromoly main triangle
- Original equipment
- Shimano Altus C50 / GripShift
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildChromoly main triangle · Shimano Altus C50 / GripShift · 700c wheels
Frameset
| Frame Construction | TIG-welded steel |
|---|---|
| Frame Material | Chromoly main triangle |
| Fork | Tange unicrown |
Drivetrain
| Component Group | Shimano Altus C50 / GripShift |
|---|---|
| Shifters | Grip Shift SRT-200i |
| Front Derailleur | Shimano Altus C-10 |
| Rear Derailleur | Shimano Altus C-50 |
| Crankset | Shimano Altus C-50, 28/38/48 teeth |
| Rear Cogs | 6-speed, 14 - 28 teeth |
| Chain | Shimano UG-50 |
| Pedals | Victor Zytel resin |
Brakes
| Brakes | Shimano Altus C-50 brakes, levers |
|---|
Cockpit & Contact Points
| Handlebar | DB mid rise cross bar |
|---|---|
| Stem | Avenir TIG-welded |
| Saddle | Avenir Comfort Plus w/Gel Lite |
| Seatpost | Avenir alloy |
Wheels & Tires
| Hubs | Alloy QR |
|---|---|
| Rims | Alloy, 36-hole |
| Front Tire | 700 x 40c Avenir Hill Street Cruise |
| Wheel Size | 700c 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 · 6 measurements
| Measurement | Legacy reference |
|---|---|
| Top tube | 576.6 mm |
| Head-tube angle | 72° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 439.4 mm |
| Wheelbase | 1066.8 mm |
| Fork offset / rake | 45.7 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
700 x 40c Avenir Hill Street Cruise
Replacement search: 700cx40 bicycle tire Before ordering: Check rim type and tire clearance.
Shimano Altus C-50
28/38/48 teeth
More parts (2)Fewer parts
Shimano Altus C-10
Shimano Altus C-50
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
- 700 x 40c Avenir Hill Street Cruise
- Drivetrain
- 6-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: Tange unicrown
Drivetrain
Check drivetrain wear →Archived: Group: Shimano Altus C50 / GripShift · Shifters: Grip Shift SRT-200i · Front derailleur: Shimano Altus C-10 · Rear derailleur: Shimano Altus C-50 · Crankset: Shimano Altus C-50, 28/38/48 teeth · Rear cogs: 6-speed, 14 - 28 teeth · Chain: Shimano UG-50
Brakes
Inspect the brakes →Archived: Brakes: Shimano Altus C-50 brakes, levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Alloy, 36-hole · Hubs: Alloy QR · Front tire: 700 x 40c Avenir Hill Street Cruise
Controls and contact points
Archived: Handlebar: DB mid rise cross bar · Stem: Avenir TIG-welded · Seatpost: Avenir alloy · Saddle: Avenir Comfort Plus w/Gel Lite · Pedals: Victor Zytel resin
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.