Lowest1.62:1
Highest4.00:1
Total range248%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 700C×25; rear size isn’t listed.
Velopedia Bicycle Archive
1997 Diamondback Interval
Original specifications: Shimano 300EX drivetrain · 700c wheels · 25 lb published weight.
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At a glance
Archive #62217- Model year
- 1997
- Category
- Road
- Original MSRP
- $420.00
- Sizes
- 19", 21", 23", 25"
- Colors
- Black
- Weight
- 25 lb
- Geometry
- Legacy reference
- In this record
- 26 specifications · archived image · original MSRP · geometry
Model history 9 other years
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Identification clues
1997 archived details
- Published colors
- Black
- Frame
- Chromoly main triangle/hi-tensile steel rear stays
- Original equipment
- Shimano 300EX
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildChromoly main triangle/hi-tensile steel rear stays · Shimano 300EX · 700c wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Chromoly main triangle/hi-tensile steel rear stays |
| Fork | Spinner |
| Fork Material | Chromoly, unicrown crown |
Drivetrain
| Component Group | Shimano 300EX |
|---|---|
| Shifters | Shimano 300EX down-tube |
| Front Derailleur | Shimano 300EX, bottom-pull/clamp-on 28.6 mm |
| Rear Derailleur | Shimano 300EX |
| Crankset | Tracer, 42/52 teeth |
| Bottom Bracket | Shimano BB-LP26, 107 mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 7-speed, 13 - 26 teeth |
| Chain | KMC UG-50, 1/2 x 3/32" |
| Pedals | Wellgo LU-871 |
Brakes
| Brakes | Shimano 300EX brakes, Shimano 300EX levers |
|---|
Cockpit & Contact Points
| Headset | 1" YST |
|---|---|
| Handlebar | Hsin Lung steel |
| Stem | Kalloy aluminum |
| Saddle | Avenir |
| Seatpost | Avenir aluminum, 26.8 mm diameter |
Wheels & Tires
| Hubs | Jou Yu aluminum, QR |
|---|---|
| Rims | Araya RT-520, 32-hole |
| Spokes | Stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 700 x 25c Cheng Shin C-732 |
| 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 | 73° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 419.1 mm |
| Wheelbase | 1016 mm |
| Fork offset / rake | 40 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 25c Cheng Shin C-732
Replacement search: 700cx25 bicycle tire Before ordering: Check rim type and tire clearance.
Shimano BB-LP26
107 mm spindle
Wellgo LU-871
More parts (1)Fewer parts
Avenir aluminum
26.8 mm diameter
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 25c Cheng Shin C-732
- Drivetrain
- 7-speed
- Seatpost diameter
- 26.8 mm
- Bottom bracket / shell
- Shimano BB-LP26, 107 mm spindle · 68mm English
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: Spinner · Chromoly, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Shimano 300EX · Shifters: Shimano 300EX down-tube · Front derailleur: Shimano 300EX, bottom-pull/clamp-on 28.6 mm · Rear derailleur: Shimano 300EX · Crankset: Tracer, 42/52 teeth · Bottom bracket: Shimano BB-LP26, 107 mm spindle · Rear cogs: 7-speed, 13 - 26 teeth · Chain: KMC UG-50, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Shimano 300EX brakes, Shimano 300EX levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Araya RT-520, 32-hole · Hubs: Jou Yu aluminum, QR · Front tire: 700 x 25c Cheng Shin C-732
Controls and contact points
Archived: Headset: 1" YST · Handlebar: Hsin Lung steel · Stem: Kalloy aluminum · Seatpost: Avenir aluminum, 26.8 mm diameter · Saddle: Avenir · Pedals: Wellgo LU-871
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Market Snapshot
Checked Nov 10, 2026We may earn a commission from purchases through these eBay links.
Diamondback Interval 700x25c Road Bike, 20.5” Chromoly Frame, w Hand Air Pump
Used · Fixed price · USD 249.00
Seller size: 20.5 in
Model year not confirmed
Diamondback Interval Carbon Performance Hybrid Road Bike- Excellent Condition
Used · Fixed price · offers accepted · USD 990.00
Seller size: 21 in
Model year not confirmed
Asking prices, not completed sales. Shipping and tax excluded.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.