Velopedia Bicycle Archive

Compare Bicycles

Compare published geometry, gearing and specifications for up to three bicycles.

1 of 2 bicycles

At a glance

Key differences

Supported differences are shown below. Data limitations are labeled separately.

  1. Data limitation

    No geometry is recorded for 2000 Scorpio AT-J20 and 1999 Scorpio AT-J20.

Gearing comparison

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

2000 Scorpio AT-J2044T · 14–28T · 6-speed
Lowest1.57:1Highest3.14:1Total range200%
Estimated speed at 90 RPMLowest gear8.5 mphHighest gear17.0 mph

Uses front tire 20×2.1; rear size isn’t listed.

1999 Scorpio AT-J2044T · 13–28T · 7-speed
Lowest1.57:1Highest3.38:1Total range215%
Estimated speed at 90 RPMLowest gear8.5 mphHighest gear18.3 mph

Uses front tire 20×2.1; 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.

Try other gearing

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.
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Specification
2000 Scorpio At-J20
1999 Scorpio At-J20
Overview
Model Year
2000
1999
Brand
Scorpio
Scorpio
Model
At-J20
At-J20
Bicycle Type
Juvenile
Juvenile mountain bike, non-suspension
Original MSRP
$150.00
$139.99
Colors
Honey Dew, Monarch Blue
Honey Dew, Monarch Blue
Sizes
Boys 12", girls 12"
Boys 9.5", girls 9.5"
Weight
28.5 lb
27 lb
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Hi-tensile steel
Hi-tensile steel
Fork
Pilot Lite Fork
Pilot
Fork Material
4130 chromoly, unicrown crown
Hi-tensile steel, unicrown crown
Drivetrain
Component Group
Sunrace
Juvenile Mix
Shifters
Sunrace Turbo Shift
Grip Shift MRX-170 rear
Rear Derailleur
Sunrace 525
Shimano Tourney TY-22
Crankset
1-piece 5 1/2", 44 teeth
1-piece 5 1/2", 44 teeth
Bottom Bracket
One piece
One piece
BB Shell Width
—
American
Rear Cogs
6-speed, 14 - 28 teeth
7-speed, 13 - 28 teeth
Chain
KMC Z-51, 1/2 x 3/32"
KMC Z-51, 1/2 x 3/32"
Pedals
Resin
Victor resin
Brakes
Brakes
Aluminum cantilever brakes, alloy levers
APSE cantilever brakes, APSE 303AP levers
Cockpit & Contact Points
Headset
1" steel
1" YST steel
Handlebar
Steel hi-rise
Hsin Lung steel
Handlebar Extensions
Not included
Not included
Stem
Steel
Hsin Lung steel
Saddle
Pilot
Pilot
Seatpost
Steel, 25.4mm diameter
Steel, 25.4mm diameter
Wheels & Tires
Hubs
Steel, nutted
Joy Tech steel, nutted
Rims
Alex X-101, 36-hole
Weinmann 119, 36-hole
Spokes
Shuhn Lih UCP, 2.0mm straight gauge
Shuhn Lih steel, 2.0mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
20 x 2.10" Kenda K-850
20 x 2.10" Kenda K-850
Wheel Size
20" wheels
20" wheels

Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.

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