Velopedia Bicycle Archive
Compare Bicycles
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 2009 Diamondback Nitrus.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Ratio2.75:1
Estimated speed at 90 RPMGear
Rear tire: 20×1.75.
Ratio2.75:1
Estimated speed at 90 RPMGear
Rear tire: 20×1.75.
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
2009 Diamondback Nitrus
2007 Diamondback Nitrus
Overview
Model Year
2009
2007
Brand
Diamondback
Diamondback
Model
Nitrus
Nitrus
Bicycle Type
BMX
BMX
Original MSRP
Not documented
$215.00
Colors
Black/Red
Metallic Grey
Sizes
20.25" TT
—
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
6061-T6 aluminum
6061 Aluminum
Fork
—
Diamondback
Fork Material
Hi-tensile steel/chromoly steerer, unicrown crown
Chromoly/steel, unicrown crown
Drivetrain
Component Group
BMX
BMX Mix
Crankset
3-Piece Tubular Chromoly 175mm, 44 teeth
175mm tubular Cromo, 44 teeth
Bottom Bracket
Loose ball w/ 8 spline
Loose ball w/ 8 spline
Cassette
Freewheel
—
Rear Cogs
1-speed, 16 teeth
1-speed, 16 teeth
Chain
KMC Z410, 1/2 x 1/8"
KMC Z410
Pedals
DB Sound alloy w/traction pins
DB Bigfoot Alloy w/ steel pins
Brakes
Brakes
Tektro linear rear brakes, Tektro rear levers
Tektro linear-pull brakes, Tektro linear-pull levers
Cockpit & Contact Points
Headset
1 1/8" FSA Threadless
1 1/8" threadless FSA
Handlebar
Hi-Ten 2-piece
Hi-Ten Remington steel 2-piece
Handlebar Extensions
Not included
Not included
Stem
DB Reactor
DB Reactor
Saddle
DB BMX padded
DB BMX Padded
Seatpost
Alloy Micro Adjust, 26.8mm diameter
Alloy Micro Adjust, 26.8mm diameter
Wheels & Tires
Hubs
Aluminum 3/8" axle
Front: Aluminum shell w/ 3/8" axle, Rear: Steel shell w/ 3/8" axle
Rims
Aluminum, 36-hole
Aluminum, 36-hole
Spokes
14ga. (2.0mm)
14ga. (2.0mm) straight gauge
Front Tire
20 x 2.125" Comp III style
20 x 2.125" Comp III style
Rear Tire
20 x 1.75" Comp III style
20 x 1.75" Comp III style
Wheel Size
20" wheels
20" wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
—
74°
Seat-tube angle
—
71°
Chainstay / rear center
—
388.6 mm
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run. Legacy reference geometry is model-level historical data whose corresponding frame size is not identified; compare those dimensions as reference values rather than size-normalized fit data.