Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 1999 Jamis Boss Cruiser.
- Gearing
1999 Jamis Boss Cruiser has a 14% lower climbing ratio than 2004 Jamis Boss Cruiser.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Ratio2.10:1
Estimated speed at 90 RPMGear
Uses front tire 26×2.125; rear size isn’t listed.
Ratio2.44:1
Estimated speed at 90 RPMGear
Uses front tire 26×2.125; rear size isn’t listed.
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
1999 Jamis Boss Cruiser
2004 Jamis Boss Cruiser
Overview
Model Year
1999
2004
Brand
Jamis
Jamis
Model
Boss Cruiser
Boss Cruiser
Bicycle Type
Cruiser
Cruiser
Original MSRP
$219.95
$239.95
Colors
Metallic Black, Metallic Saffron, Starbeam Blue, Starbeam Green, Starbeam Magenta, Starbeam Red
Black, Pink, Polished, White
Sizes
19", 21", 23", 25", womens 17.5", womens 19"
19", 21", 23", 25", womens 17.5", womens 19"
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Hi-tensile steel
7005 aluminum
Fork
—
Jamis
Fork Material
Hi-tensile steel, unicrown crown
Hi-tensile steel, unicrown crown
Drivetrain
Component Group
Cruiser Mix
—
Crankset
1-piece 6 1/2", 44 teeth
Aluminum, 44 teeth
Bottom Bracket
One piece
Sealed
BB Shell Width
American
68mm American
Rear Cogs
1-speed, 21 teeth
1-speed, 18 teeth
Chain
KMC 410, 1/2 x 1/8"
KMC Z51, 1/2 x 3/32"
Pedals
Jamis Sand Jam
Wellgo Cruiser
Brakes
Brakes
Coaster rear
—
Cockpit & Contact Points
Headset
1" Victor
1 1/8" threadless steel
Handlebar
Steel, rise
Steel, cruiser
Stem
Alloy 4 bolt
Aluminum, adjustable
Saddle
Jamis cruiser
Jamis Cheeks
Seatpost
Pillar, steel, 25.4mm diameter
Aluminum pillar, 27.2mm diameter
Wheels & Tires
Hubs
Front: steel, nutted, Rear: coaster brake
Front: aluminum, nutted, Rear: Shimano Coaster Brake
Rims
Sun Rims Z-25, 36-hole
Alex ALX 303, 36-hole
Spokes
Stainless steel, 2.0mm straight gauge
Stainless steel, 14ga. (2.0mm) straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
26 x 2.125" Jamis Sand Jam
26 x 2.125" Kenda Kruiser
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
—
70°
Seat-tube angle
—
70°
Chainstay / rear center
—
475 mm
Wheelbase
—
1079 mm
Fork offset / rake
—
35 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.