Velopedia Bicycle Archive

2005 K2 Mixer

Original specifications: 20" wheels.

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At a glance

Archive #93221

Model year: 2005
Category: BMX
Colors: Gray
In this record: 21 specifications · archived image

Original buildHi-tensile steel · 20" wheels

Manufacturer catalog

Published sizes and colors

1 color

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

Published colors

Gray

Frameset

Frame Construction	TIG-welded
Frame Material	Hi-tensile steel
Fork	K2
Fork Material	High-tensile steel, unicrown crown

Drivetrain

Crankset	3-piece chromoly, 39 teeth
Rear Cogs	1-speed, 14 teeth
Chain	KMC Z410, 1/2 x 1/8"
Pedals	Wellgo aluminum

Brakes

Brakes	Tektro alloy U-brake brakes, Tektro aluminum levers

Cockpit & Contact Points

Headset	1 1/8" threadless steel
Handlebar	Steel
Stem	Aluminum threadless
Saddle	K2 BMX
Seatpost	Steel

Wheels & Tires

Hubs	Aluminum, 14mm axle
Rims	Sun Rims ZX-25, 36-hole
Spokes	UCP, 14ga. (2.0mm) straight gauge
Spoke Nipples	Brass nipples
Front Tire	20 x 2.125" Kenda Kontact
Rear Tire	20 x 1.95" Kenda Kontact
Wheel Size	20" wheels

Gearing

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

Pedal cadence

RPM

Speed units

RPM = pedal turns per minute.

Published build39T · 14T · 1-speed

Ratio2.79:1

Estimated speed At 90 RPM Gear14.8 mph

Rear tire: 20×1.95.

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

20 x 2.125" Kenda Kontact

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Rear tire · Original

20 x 1.95" Kenda Kontact

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Parts and service referenceQuick reference before buying parts

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

Front tire: Front: 20 x 2.125" Kenda Kontact, Rear: 20 x 1.95" Kenda Kontact
Drivetrain: 1-speed

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

2005 K2 Mixer