Ratio2.44:1
Estimated speed At 90 RPM
Gear
Uses front tire 26×2.125; rear size isn’t listed.
Velopedia Bicycle Archive
1997 Jamis Boss Cruiser CB
Original specifications: 26" wheels · 35 lb published weight · legacy reference geometry.
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No archive photo is available for this record.
At a glance
Archive #63709- Model year
- 1997
- Category
- Cruiser
- Original MSRP
- $219.95
- Sizes
- 19", 21", 23", 25", womens 17.5", womens 19"
- Colors
- Black, Emerald Green, Matte Blue, Matte Red, Matte Teal
- Weight
- 35 lb
- Geometry
- Legacy reference
- In this record
- 22 specifications · original MSRP · geometry
Model history 3 other years
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Identification clues
1997 archived details
- Published colors
- Black, Emerald Green, Matte Blue, Matte Red, Matte Teal
- Frame
- Hi-tensile steel
- Original equipment
- N/A
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildHi-tensile steel · 26" wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Hi-tensile steel |
| Fork | MX Tubular |
| Fork Material | Hi-tensile steel, unicrown crown |
Drivetrain
| Crankset | 1-piece 6 1/2", 44 teeth |
|---|---|
| Bottom Bracket | One piece |
| BB Shell Width | 68mm Threadless |
| Rear Cogs | 1-speed, 18 teeth |
| Chain | KMC 410, 1/2 x 1/8" |
| Pedals | Wellgo LU-879 |
Brakes
| Brakes | Shimano coaster brake |
|---|
Cockpit & Contact Points
| Headset | 1" Chin Haur CH60-1 |
|---|---|
| Handlebar | Cruiser Bend |
| Stem | Leadtec |
| Saddle | Cheeks |
| Seatpost | Pillar, steel, 25.4 mm diameter |
Wheels & Tires
| Hubs | Kung Ten aluminum, nutted |
|---|---|
| Rims | Alex 7X, 36-hole |
| Spokes | Shuhn Lih stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 26 x 2.125" Sand Jam |
| 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 | 558.8 mm |
| Head-tube angle | 70° |
| Seat-tube angle | 70° |
| Chainstay / rear center | 475 mm |
| Wheelbase | 1079.5 mm |
| Fork offset / rake | 35.6 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
26 x 2.125" Sand Jam
Replacement search: 26x2.125 bicycle tire Before ordering: Check rim type and tire clearance.
Wellgo LU-879
Pillar
steel, 25.4 mm diameter
More parts (1)Fewer parts
Alex 7X
36-hole
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 2.125" Sand Jam
- Drivetrain
- 1-speed
- Seatpost diameter
- 25.4 mm
- Bottom bracket / shell
- One piece · 68mm Threadless
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: MX Tubular · Hi-tensile steel, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Crankset: 1-piece 6 1/2", 44 teeth · Bottom bracket: One piece · Rear cogs: 1-speed, 18 teeth · Chain: KMC 410, 1/2 x 1/8"
Brakes
Inspect the brakes →Archived: Brakes: Shimano coaster brake
Wheels and tires
Check wheels and tires →Archived: Wheel size: 26" wheels · Rims: Alex 7X, 36-hole · Hubs: Kung Ten aluminum, nutted · Front tire: 26 x 2.125" Sand Jam
Controls and contact points
Archived: Headset: 1" Chin Haur CH60-1 · Handlebar: Cruiser Bend · Stem: Leadtec · Seatpost: Pillar, steel, 25.4 mm diameter · Saddle: Cheeks · Pedals: Wellgo LU-879
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