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.
- Handling
1999 Diamondback Expert has a 1.0° slacker head-tube angle than 2002 Diamondback Expert in the archived geometry. Frame size is not identified for 2002 Diamondback Expert and 1999 Diamondback Expert.
Fork offset, tire size and wheelbase also affect steering; head angle alone is not a handling verdict.
- Gearing
1999 Diamondback Expert has a 8% lower climbing ratio than 2002 Diamondback Expert.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
- Identity & price
1999 Diamondback Expert had an original MSRP $180 lower than 2002 Diamondback Expert.
Original MSRP is the published list price when new, not today’s used-bike value.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest1.30:1Highest4.33:1Total range332%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; rear size isn’t listed.
Lowest1.20:1Highest4.33:1Total range361%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; 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
2002 Diamondback Expert
1999 Diamondback Expert
Overview
Model Year
2002
1999
Brand
Diamondback
Diamondback
Model
Expert
Expert
Bicycle Type
Road/sport
Road/sport
Original MSRP
$879.99
$699.99
Colors
Red/White
Midnight Blue
Sizes
Compact large, compact medium, compact small, compact xlarge
19", 21", 23", 25"
Weight
—
24.5 lb
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
7005 aluminum w/replaceable derailleur hanger
7005 aluminum w/replaceable derailleur hanger
Fork
—
Diamondback
Fork Material
Chromoly
Chromoly, unicrown crown
Drivetrain
Component Group
Road Mix
Shimano RSX
Shifters
Shimano Tiagra STI Dual Control
Shimano RSX STI Dual Control
Front Derailleur
Shimano Sora, bottom-pull/clamp-on 31.8mm
Shimano RSX, bottom-pull/clamp-on 31.8mm
Rear Derailleur
Shimano Tiagra GS
Shimano RSX GS
Crankset
Shimano Tiagra Triple, 30/42/52 teeth
Shimano RSX, 30/42/52 teeth
Bottom Bracket
Sealed cartridge, 113mm spindle
Shimano BB-LP27, 118mm spindle
BB Shell Width
68mm English
68mm English
Rear Cogs
9-speed, 12 - 23 teeth
8-speed, 12 - 25 teeth
Chain
KMC Z-9000, 1/2 x 3/32"
Shimano CN-IG51, 1/2 x 3/32"
Pedals
Resin body, aluminum cage w/clips & straps
Wellgo aluminum
Brakes
Brakes
Aluminum Dual Pivot brakes, Shimano Tiagra STI Dual Control levers
Shimano RX-100 Dual Pivot brakes, Shimano RSX levers
Cockpit & Contact Points
Headset
1 1/8" integrated Tien Hsin No.10 ZST
1" Tien Hsin
Handlebar
Aluminum drop bar
Kalloy AL-038
Handlebar Extensions
Not included
—
Stem
Aluminum threadless
Lee Chi
Saddle
Avenir Road SS
Diamondback Sport
Seatpost
Aluminum micro-adjust, 27.2mm diameter
Kalloy SP-339, 27.2mm diameter
Wheels & Tires
Hubs
Equation Aero Road
Shimano RSX
Rims
Equation Alloy, 16-hole/20-hole
Alex DA-16, 32-hole
Spokes
Equation stainless steel, 14ga. (2.0mm) bladed
Shuhn Lih stainless steel, 2.0mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
700 x 23c Michelin Axial Kevlar
700 x 23c Continental Super Sport 100
Wheel Size
700c wheels
700c wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
73°
72°
Seat-tube angle
72°
73.5°
Chainstay / rear center
408.9 mm
414 mm
Wheelbase
990.6 mm
993.1 mm
Fork offset / rake
45 mm
45 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.