Same brand and year
Velopedia Bicycle Archive
1997 Ross Diamond Trimatic w/fenders
Original specifications: 26" wheels · legacy reference geometry.
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No archive photo is available for this record.
At a glance
Archive #66064- Model year
- 1997
- Category
- City & Commuter
- Original MSRP
- $259.95
- Sizes
- 19", 21", womens 16", womens 19"
- Colors
- Teal
- Geometry
- Legacy reference
- In this record
- 23 specifications · original MSRP · geometry
Original buildHi-tensile steel · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Hi-tensile steel |
| Fork | Ross |
| Fork Material | Hi-tensile steel, unicrown crown |
Drivetrain
| Shifters | Shimano 3-speed |
|---|---|
| Crankset | Dotek aluminum, 44 teeth |
| Bottom Bracket | YST BB 621, 122.5 mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 3-speed internal, 18 teeth |
| Chain | KMC 410, 1/2 x 1/8" |
| Pedals | Resin |
Brakes
| Brakes | Coaster brake/side-pull front brakes, Tourist aluminum levers |
|---|
Cockpit & Contact Points
| Headset | 1" YST 665 |
|---|---|
| Handlebar | Cruiser Bend |
| Stem | Steel |
| Saddle | Selle Master Comfort w/springs |
| Seatpost | Pillar, steel, 25.4 mm diameter |
Wheels & Tires
| Hubs | Front: steel, nutted, Rear: Shimano 3-speed coaster brake |
|---|---|
| Rims | Rigida AS-26, 36-hole |
| Spokes | Richman stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 1.50" Cheng Shin |
| Wheel Size | 26" 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 | 569 mm |
| Head-tube angle | 71° |
| Seat-tube angle | 67° |
| Chainstay / rear center | 445 mm |
| Wheelbase | 1072 mm |
| Fork offset / rake | 45 mm |
Frame size not recorded.
Gearing
Original gearing is incomplete. Enter your setup to calculate ratios and cadence speeds.
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
26 x 1.50" Cheng Shin
Replacement search: 26x1.5 bicycle tire Before ordering: Check rim type and tire clearance.
Pillar
steel, 25.4 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
- 26 x 1.50" Cheng Shin
- Drivetrain
- 3-speed
- Seatpost diameter
- 25.4 mm
- Bottom bracket / shell
- YST BB 621, 122.5 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: Ross · Hi-tensile steel, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano 3-speed · Crankset: Dotek aluminum, 44 teeth · Bottom bracket: YST BB 621, 122.5 mm spindle · Rear cogs: 3-speed internal, 18 teeth · Chain: KMC 410, 1/2 x 1/8"
Brakes
Inspect the brakes →Archived: Brakes: Coaster brake/side-pull front brakes, Tourist aluminum levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Rigida AS-26, 36-hole · Hubs: Front: steel, nutted, Rear: Shimano 3-speed coaster brake · Front tire: 26 x 1.50" Cheng Shin
Controls and contact points
Archived: Headset: 1" YST 665 · Handlebar: Cruiser Bend · Stem: Steel · Seatpost: Pillar, steel, 25.4 mm diameter · Saddle: Selle Master Comfort w/springs · Pedals: Resin
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.