Lowest1.08:1
Highest4.18:1
Total range386%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 700C×25; rear size isn’t listed.
Velopedia Bicycle Archive
1998 Jamis Aurora
Original specifications: Shimano RSX drivetrain · 700c wheels · legacy reference geometry.
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No archive photo is available for this record.
At a glance
Archive #78494- Model year
- 1998
- Category
- Road
- Original MSRP
- $599.95
- Sizes
- 50 cm, 53 cm, 55 cm, 57 cm, 59 cm, 62 cm
- Colors
- Electric Blue
- Geometry
- Legacy reference
- In this record
- 26 specifications · original MSRP · geometry
Model history 18 other years
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Identification clues
1998 archived details
- Published colors
- Electric Blue
- Frame
- Reynolds 525
- Original equipment
- Shimano RSX
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildReynolds 525 · Shimano RSX · 700c wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | Reynolds 525 |
| Fork | Jamis |
| Fork Material | Chromoly, unicrown crown |
Drivetrain
| Component Group | Shimano RSX |
|---|---|
| Shifters | Shimano RSX STI Dual Control |
| Front Derailleur | Shimano RSX top-swing, bottom-pull/clamp-on 28.6mm |
| Rear Derailleur | Shimano RSX GS |
| Crankset | Shimano RSX, 26/36/46 teeth |
| Bottom Bracket | Shimano BB-LP26, 118mm spindle |
| BB Shell Width | 68mm English |
| Rear Cogs | 7-speed, 11 - 24 teeth |
| Chain | Shimano CN-HG50, 1/2 x 3/32" |
| Pedals | Wellgo w/clips & straps |
Brakes
| Brakes | Shimano RSX Dual Pivot brakes, Shimano RSX levers |
|---|
Cockpit & Contact Points
| Headset | 1" Victor VP-H242NW |
|---|---|
| Handlebar | Kalloy |
| Stem | Kalloy chromoly |
| Saddle | Jamis Comp |
| Seatpost | Kalloy aluminum micro-adjust, 26.8mm diameter |
Wheels & Tires
| Hubs | Shimano RSX |
|---|---|
| Rims | Sun Rims CR18, 36-hole |
| Spokes | Stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 700 x 25c Ritchey Tom Slick |
| 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 | 550 mm |
| Head-tube angle | 72° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 450 mm |
| Wheelbase | 1037 mm |
| Fork offset / rake | 50 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 Ritchey Tom Slick
Retailer offers
Vittoria Zaffiro Pro V Clincher Tire Black, 700x25
700x25c
Replacement option
Shimano BB-LP26
118mm spindle
More parts (4)Fewer parts
Wellgo w/clips & straps
Shimano RSX
26/36/46 teeth
Kalloy aluminum micro-adjust
26.8mm diameter
Shimano RSX
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 Ritchey Tom Slick
- Drivetrain
- 7-speed
- Seatpost diameter
- 26.8 mm
- Bottom bracket / shell
- Shimano BB-LP26, 118mm 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: Jamis · Chromoly, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Shimano RSX · Shifters: Shimano RSX STI Dual Control · Front derailleur: Shimano RSX top-swing, bottom-pull/clamp-on 28.6mm · Rear derailleur: Shimano RSX GS · Crankset: Shimano RSX, 26/36/46 teeth · Bottom bracket: Shimano BB-LP26, 118mm spindle · Rear cogs: 7-speed, 11 - 24 teeth · Chain: Shimano CN-HG50, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Shimano RSX Dual Pivot brakes, Shimano RSX levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Sun Rims CR18, 36-hole · Hubs: Shimano RSX · Front tire: 700 x 25c Ritchey Tom Slick
Controls and contact points
Archived: Headset: 1" Victor VP-H242NW · Handlebar: Kalloy · Stem: Kalloy chromoly · Seatpost: Kalloy aluminum micro-adjust, 26.8mm diameter · Saddle: Jamis Comp · Pedals: Wellgo w/clips & straps
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.