- Frame
- Reynolds 525
- Groupset
- Shimano RSX
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Identity & price
These bicycles are categorized differently: 1998 Jamis Aurora is Road; 1999 Jamis Aurora is Touring.
- Data limitation
No geometry is recorded for 1999 Jamis Aurora.
- Data limitation
Only 1998 Jamis Aurora has enough published drivetrain data for gearing calculations.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest1.08:1Highest4.18:1Total range386%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×25; rear size isn’t listed.
Gearing unavailable for this size.
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.
Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
Specification
1998 Jamis Aurora
1999 Jamis Aurora
Overview
Model Year
1998
1999
Brand
Jamis
Jamis
Model
Aurora
Aurora
Bicycle Type
Road/sport
Touring
Original MSRP
$599.95
$599.95
Colors
Electric Blue
—
Sizes
50 cm, 53 cm, 55 cm, 57 cm, 59 cm, 62 cm
47cm, 49cm, 51cm, 53cm, 55cm, 57cm, 59cm, 61cm
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Reynolds 525
Reynolds 525
Fork
Jamis
Jamis
Fork Material
Chromoly, unicrown crown
Chromoly, unicrown crown
Drivetrain
Component Group
Shimano RSX
Shimano RSX Triple
Shifters
Shimano RSX STI Dual Control
Shimano RSX STI Dual Control
Front Derailleur
Shimano RSX top-swing, bottom-pull/clamp-on 28.6mm
Shimano RSX top-swing
Rear Derailleur
Shimano RSX GS
Shimano RSX GS
Crankset
Shimano RSX, 26/36/46 teeth
Shimano RSX, 30/42/52 teeth
Bottom Bracket
Shimano BB-LP26, 118mm spindle
Shimano BB-LP27
BB Shell Width
68mm English
—
Rear Cogs
7-speed, 11 - 24 teeth
8-speed
Chain
Shimano CN-HG50, 1/2 x 3/32"
Shimano CN-IG51, 1/2 x 3/32"
Pedals
Wellgo w/clips & straps
Aluminum w/clips & straps
Brakes
Brakes
Shimano RSX Dual Pivot brakes, Shimano RSX levers
Shimano RSX Dual Pivot brakes, Shimano RSX levers
Cockpit & Contact Points
Headset
1" Victor VP-H242NW
—
Handlebar
Kalloy
—
Stem
Kalloy chromoly
—
Saddle
Jamis Comp
Jamis Touring
Seatpost
Kalloy aluminum micro-adjust, 26.8mm diameter
Post Moderne, suspension
Wheels & Tires
Hubs
Shimano RSX
Front: Ritchey Comp, Rear: Ritchey Zero System Comp
Rims
Sun Rims CR18, 36-hole
Front: Ritchey Rock Pro, Rear: Ritchey OCR Pro, 32-hole
Spokes
Stainless steel, 2.0mm straight gauge
Stainless steel, 2.0mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
700 x 25c Ritchey Tom Slick
Maxxis
Wheel Size
700c wheels
—
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
72°
—
Seat-tube angle
73°
—
Chainstay / rear center
450 mm
—
Wheelbase
1037 mm
—
Fork offset / rake
50 mm
—
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run. Legacy reference geometry is model-level historical data whose corresponding frame size is not identified; compare those dimensions as reference values rather than size-normalized fit data.