Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 2008 Diamondback Impression and 2009 Diamondback Impression.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Ratio2.00:1
Estimated speed at 90 RPMGear
Uses front tire 20×1.75; rear size isn’t listed.
Ratio2.00:1
Estimated speed at 90 RPMGear
Uses front tire 20×1.75; 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
2008 Diamondback Impression
2009 Diamondback Impression
Overview
Model Year
2008
2009
Brand
Diamondback
Diamondback
Model
Impression
Impression
Bicycle Type
Juvenile
Juvenile
Original MSRP
$140.00
Not documented
Colors
Pink Kisses
Gloss Teal
Sizes
20" wheel
—
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
Hi-tensile steel
High-Tensile steel
Fork
Hi-Ten Remington
—
Fork Material
Steel, unicrown crown
High-tensile steel, unicrown crown
Drivetrain
Component Group
Juvenile Mix
Juvenile Mix
Crankset
1-Piece, 36 teeth
1-piece, 36 teeth
Bottom Bracket
Loose ball
Loose ball
Cassette
—
Cog
Rear Cogs
1-speed, 18 teeth
1-speed, 18 teeth
Chain
KMC Z410
—
Pedals
Resin Platform
Resin platform
Brakes
Brakes
Linear Pull/Coaster rear brakes, Alloy linear levers
Alloy Linear Pull/Coaster Brake rear brakes, Alloy linear rear levers
Cockpit & Contact Points
Headset
1" threaded
1" Threaded
Handlebar
Hi-Ten 2-piece
Hi-Ten 2-piece
Handlebar Extensions
Not included
Not included
Stem
Steel Quill w/ Alloy Cap
Steel quill
Saddle
DB Miss BMX Padded
DB Miss BMX Padded
Seatpost
Steel pillar, 25.4mm diameter
Steel pillar, 25.4mm diameter
Wheels & Tires
Hubs
Front: Nutted, Rear: Nutted, coaster
Front: Nutted, Rear: Nutted Coaster
Rims
R-1000, 36-hole
Alex R-1000, 36-hole
Spokes
14ga. (2.0mm) straight gauge
14ga. (2.0mm)
Front Tire
20 x 1.75" DB Smooth
20 x 1.75" DB Smooth
Wheel Size
20" wheels
20" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.