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 2011 Diamondback Joker and 2008 Diamondback Joker.
- Data limitation
Only 2008 Diamondback Joker has enough published drivetrain data for gearing calculations.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Gearing unavailable for this size.
Ratio2.75:1
Estimated speed at 90 RPMGear
Rear tire: 20×2.1.
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
2011 Diamondback Joker
2008 Diamondback Joker
Overview
Model Year
2011
2008
Brand
Diamondback
Diamondback
Model
Joker
Joker
Bicycle Type
BMX
Freestyle/jumping
Original MSRP
Not documented
$210.00
Colors
White, Black
Mint Condition, Black
Sizes
—
19.5" top tube
Weight
—
—
Frameset
Frame Construction
Steel
TIG-welded
Frame Material
Hi-tensile steel
Hi-tensile steel
Fork
Hi Ten
Diamondback
Fork Material
Steel
Hi-tensile steel, unicrown crown
Drivetrain
Component Group
BMX Mix
BMX Mix
Crankset
Tubular chromoly 3-piece, 8t teeth
175mm tubular chromoly 3-piece, 44 teeth
Bottom Bracket
Loose ball
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 Plastic w/ Chromo Axels
DB Sound Alloy
Brakes
Brakes
Tektro 907 U-brake brakes, Tektro 2 finger levers
Tektro 907A w/SST DC Amplifier brakes, Tektro 2-finger 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
Alloy 4-bolt
DB Alloy 4-bolt
Saddle
DB Darin Read Signature Plastic Seat
DB Driver's Seat
Seatpost
Steel pillar, 25.4mm diameter
Steel pillar, 25.4mm diameter
Wheels & Tires
Hubs
Steel shell w/ 14mm Axle
Steel 14mm axle
Rims
Aluminum, 48-hole
30mm wide aluminum, 48-hole
Spokes
14ga. (2.0mm)
14ga. (2.0mm) straight gauge
Front Tire
20 x 2.1" DB Cellblock
20 x 2.10" DB Cellblock
Rear Tire
—
20 x 2.1" DB Cellblock
Wheel Size
20" wheels
20" wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.