Velopedia Bicycle Archive

1997 Research Dynamics Coyote Team Extreme 24

Original specifications: Shimano Tourney TY-22 drivetrain · 24" wheels · 27.6 lb published weight.

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At a glance

Archive #63717

Model year: 1997
Category: Kids
Original MSRP: $229.00
Sizes: Boys 14.5"
Colors: Black/red fade, Blue, Red
Weight: 27.6 lb
Geometry: Legacy reference
In this record: 26 specifications · original MSRP · geometry

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Identification clues

1997 archived details

Published colors: Black/red fade, Blue, Red
Frame: Hi-tensile steel
Original equipment: Shimano Tourney TY-22

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

Original buildHi-tensile steel · Shimano Tourney TY-22 · 24" wheels

Manufacturer catalog

Published sizes and colors

1 size · 3 colors

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

Published sizes

Boys 14.5"

Published colors

Black/red fadeBlueRed

Frameset

Frame Construction	TIG-welded
Frame Material	Hi-tensile steel
Fork	Research Dynamics
Fork Material	Hi-tensile steel, unicrown crown

Drivetrain

Component Group	Shimano Tourney TY-22
Shifters	Grip Shift MRX-100
Front Derailleur	Shimano Tourney TY-22 top-swing, bottom-pull/clamp-on 28.6 mm
Rear Derailleur	Shimano Tourney TY-22
Crankset	Prowheel S-355, 28/38/48 teeth
Bottom Bracket	YST BB 612, 122.5 mm spindle
BB Shell Width	68mm English
Rear Cogs	6-speed, 14 - 28 teeth
Chain	KMC UG-30, 1/2 x 3/32"
Pedals	Wellgo LU-895N

Brakes

Brakes	Guan Chih N888P brakes, Guan Chih N394BP levers

Cockpit & Contact Points

Headset	1" YST 663EB
Handlebar	Hsin Lung MTB 110
Stem	Jye Chen JC80U
Saddle	Velo VL-244
Seatpost	Kalloy SP-200, 25.4 mm diameter

Wheels & Tires

Hubs	Front: Jou Yu JY-414 Q/R, Rear: Joy Tech JY-434
Rims	Kin Lin RT-6n, 36-hole
Spokes	Stainless steel, 2.0mm straight gauge
Spoke Nipples	Brass nipples
Front Tire	24 x 2.10" Kenda K-816
Wheel Size	24" wheels

Geometry

Legacy reference · 6 measurements

Historical measurements. Frame size unknown.

All geometry measurementsLegacy reference · 6 measurements

Measurement	Legacy reference
Top tube	495.3 mm
Head-tube angle	71°
Seat-tube angle	73°
Chainstay / rear center	424.2 mm
Wheelbase	990.6 mm
Fork offset / rake	43.2 mm

Frame size not recorded.

Gearing

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

Pedal cadence

RPM

Speed units

RPM = pedal turns per minute.

Published build48/38/28T · 14–28T · 6-speed

Lowest1.00:1 Highest3.43:1 Total range343%

Estimated speed At 90 RPM Lowest gear6.5 mph Highest gear22.2 mph

Uses front tire 24×2.1; 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

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

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

Gears Drivetrain

Front teeth Smallest rear teeth Largest rear teeth

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

Rear tire

Rear tire marking

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).

Rim diameter (BSD, mm) Tire width (mm)

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.

Cadence (RPM) Speed units

Gear, dimension and cadence changes update results automatically.

Gearing comparison
Measure	Original	Your setup
Lowest ratio	—	—
Highest ratio	—	—
Total range	—	—
Lowest-gear speed	—	—
Highest-gear speed	—	—

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

Parts & serviceability

Find replacement parts

Original specifications

Front tire · Original

24 x 2.10" Kenda K-816 Replacement search: 24x2.1 bicycle tire Before ordering: Check rim type and tire clearance.

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Pedals · Original

Wellgo LU-895N

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Rear derailleur · Original

Shimano Tourney TY-22

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More parts (1)Fewer parts

Seatpost · Original

Kalloy SP-200

25.4 mm diameter

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Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.

Parts and service referenceQuick reference before buying parts

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

Front tire: 24 x 2.10" Kenda K-816
Drivetrain: 6-speed
Seatpost diameter: 25.4 mm
Bottom bracket / shell: YST BB 612, 122.5 mm spindle · 68mm English

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

1997 Research Dynamics Coyote Team Extreme 24