Velopedia Bicycle Archive

1995 Ross Piranha Pro 144

Original specifications: 20" wheels.

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At a glance

Archive #31053
Model year
1995
Category
Kids
Original MSRP
$199.95
Sizes
Boys 12"
In this record
20 specifications · original MSRP
Model history 1 other year

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Identification clues

1995 archived details

Frame
Hi-tensile steel, chromoly seat tube
Original equipment
N/A

Clues, not proof of model year. Colors vary and components may have been replaced.

Campaign
Original buildHi-tensile steel, chromoly seat tube · 20" wheels

Manufacturer catalog

Published sizes and colors

1 size

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

Boys 12"

Frameset

Frame ConstructionTIG-welded steel
Frame MaterialHi-tensile steel, chromoly seat tube
ForkRoss
Fork MaterialHi-tensile steel, unicrown crown

Drivetrain

Crankset1-piece 5 1/2", 40 teeth
Rear Cogs1-speed, 18 teeth
ChainKMC 410, 1/2 x 1/8"
PedalsVictor VP-767

Brakes

BrakesTektro 100A brakes, Tektro 134A levers

Cockpit & Contact Points

Headset1" HP-8002
HandlebarBMX Type CP
StemYC-106
SaddleRoss BMX
SeatpostSteel

Wheels & Tires

HubsKing Kong nutted
RimsKin Lin RT-6n, 36-hole
Spokes1.8 mm straight gauge
Spoke NipplesBrass nipples
Front Tire20 x 2.00" Ross CS-1036
Wheel Size20" wheels

Gearing

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

RPM

RPM = pedal turns per minute.

Published build40T · 18T · 1-speed
Ratio2.22:1
Estimated speed At 90 RPM Gear11.9 mph

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.

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Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Your gearing setup
Gears

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Gear, dimension and cadence changes update results automatically.

Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.

Parts and service referenceQuick reference before buying parts

Archived specifications for reference. Check the fitted parts before ordering.

Front tire
20 x 2.00" Ross CS-1036
Drivetrain
1-speed
Campaign
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
0 of 10 checked Progress stays in this browser for this record.

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 steel · Fork: Ross · Hi-tensile steel, unicrown crown

Drivetrain

Check drivetrain wear →

Archived: Crankset: 1-piece 5 1/2", 40 teeth · Rear cogs: 1-speed, 18 teeth · Chain: KMC 410, 1/2 x 1/8"

Brakes

Inspect the brakes →

Archived: Brakes: Tektro 100A brakes, Tektro 134A levers

Wheels and tires

Check wheels and tires →

Archived: Wheel size: 20" wheels · Rims: Kin Lin RT-6n, 36-hole · Hubs: King Kong nutted · Front tire: 20 x 2.00" Ross CS-1036

Controls and contact points

Archived: Headset: 1" HP-8002 · Handlebar: BMX Type CP · Stem: YC-106 · Seatpost: Steel · Saddle: Ross BMX · Pedals: Victor VP-767

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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