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 2009 Diamondback Nitrus and 2008 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
2008 Diamondback Nitrus
Overview
Model Year
2009
2008
Brand
Diamondback
Diamondback
Model
Nitrus
Nitrus
Bicycle Type
BMX
BMX
Original MSRP
Not documented
$230.00
Colors
Black/Red
Red-E on the Line
Sizes
20.25" TT
20.25" top tube
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
6061-T6 aluminum
6061-T6 aluminum
Fork
—
Diamondback
Fork Material
Hi-tensile steel/chromoly steerer, unicrown crown
Hi-tensile steel/chromoly, unicrown crown
Drivetrain
Component Group
BMX
BMX Mix
Crankset
3-Piece Tubular Chromoly 175mm, 44 teeth
175mm tubular chromoly 3-piece, 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, 1/2 x 1/8"
Pedals
DB Sound alloy w/traction pins
DB Sound Alloy
Brakes
Brakes
Tektro linear rear brakes, Tektro rear levers
Tektro linear brakes, Tektro front/Tektro rear levers
Cockpit & Contact Points
Headset
1 1/8" FSA Threadless
1 1/8" threadless FSA
Handlebar
Hi-Ten 2-piece
Hi-ten 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
Aluminum 3/8" axle
Rims
Aluminum, 36-hole
30mm wide 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
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.