- Frame
- Hi-tensile steel
- Brakes
- Alloy side-pull calipers brakes, alloy 2-finger w/adjuster levers
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Compare published geometry, gearing and specifications for up to three bicycles.
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At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 1995 Ross Amazon.
- Gearing
1995 Ross Amazon has a 9% lower climbing ratio than 1997 Ross Amazon.
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.
Ratio2.22:1
Estimated speed at 90 RPMGear
Uses front tire 20×2; rear size isn’t listed.
Ratio2.44:1
Estimated speed at 90 RPMGear
Uses front tire 20×2; 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
1995 Ross Amazon
1997 Ross Amazon
Overview
Model Year
1995
1997
Brand
Ross
Ross
Model
Amazon
Amazon
Bicycle Type
Juvenile
Juvenile
Original MSRP
$154.95
$144.95
Colors
Vivid red
Red
Sizes
Boys
Boys 12"
Weight
—
—
Frameset
Frame Construction
TIG-welded steel
TIG-welded
Frame Material
Hi-tensile steel
Hi-tensile steel
Fork
Ross
Ross
Fork Material
Hi-tensile steel, unicrown crown
Hi-tensile steel, unicrown crown
Drivetrain
Crankset
1-piece 5 1/2", 40 teeth
1-piece 6 1/2", 44 teeth
Bottom Bracket
—
One piece
BB Shell Width
—
68mm English
Rear Cogs
1-speed, 18 teeth
1-speed, 18 teeth
Chain
KMC 410, 1/2 x 1/8"
KMC 410, 1/2 x 1/8"
Pedals
Victor VP-767
Resin
Brakes
Brakes
Alloy side-pull calipers brakes, alloy 2-finger w/adjuster levers
Aluminum side-pull calipers brakes, Tourist aluminum levers
Cockpit & Contact Points
Headset
1" CH-664
1" YST 665
Handlebar
BMX Type CP
Steel
Stem
MX-2
Aluminum
Saddle
Ross BMX
Ross BMX
Seatpost
Steel
Pillar, steel, 25.4 mm diameter
Wheels & Tires
Hubs
King Kong nutted
Steel, nutted
Rims
CMC 7X steel, 36-hole
Kin Lin steel, 36-hole
Spokes
Steel, 2.0 mm straight gauge
Ta Sen steel, 2.0mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
20 x 2.00" Ross CS-1036
20 x 2.00" Ross BMX w/Slime tire sealant
Wheel Size
20" wheels
20" wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
—
70°
Seat-tube angle
—
73°
Chainstay / rear center
—
406 mm
Wheelbase
—
900 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.