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 2004 Diamondback Topanga Comp.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest0.69:1Highest4.00:1Total range582%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2.1; rear size isn’t listed.
Lowest0.69:1Highest4.00:1Total range582%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2.1; 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 Topanga Comp
2004 Diamondback Topanga Comp
Overview
Model Year
2002
2004
Brand
Diamondback
Diamondback
Model
Topanga Comp
Topanga Comp
Bicycle Type
Mountain bike, front suspension
Mountain bike, front suspension
Original MSRP
$549.99
$575.00
Colors
Black/Grey
Satin Red/Grey/Silver
Sizes
XS, S, M, L
14", 16", 18", 20", 22"
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
6061 T6 aluminum w/replaceable derailleur hanger
Vectra 7005 Aluminum
Fork
Rock Shox Judy C, 3.0" travel
Rock Shox Judy TT, 100mm
Fork Material
Aluminum, single triple-clamp crown
Aluminum, single crown
Drivetrain
Component Group
Shimano Deore
Mountain Mix
Shifters
Shimano Deore
Shimano Deore RapidFire
Front Derailleur
Shimano Deore, top-pull/clamp-on 31.8mm
Shimano Deore, top-pull/clamp-on 31.8mm
Rear Derailleur
Shimano Deore
Shimano Deore
Crankset
Shimano FC-M440, 22/32/44 teeth
TruVativ Five-D, 22/32/44 teeth
Bottom Bracket
Sealed cartridge, 111mm spindle
Cartridge sealed
BB Shell Width
68mm English
—
Rear Cogs
9-speed, 11 - 32 teeth
9-speed, 11 - 32 teeth
Chain
KMC Z9000, 1/2 x 3/32"
SRAM PC-49, 1/2 X 3/32"
Pedals
Resin body/aluminum cage w/clips & straps
Atb
Brakes
Brakes
ProMax linear-pull brakes, ProMax linear-pull levers
Shimano Deore brakes, Shimano Deore levers
Cockpit & Contact Points
Headset
1 1/8" integrated Tien Hsin No.10 ZST
1 1/8" integrated OS Zero Stack
Handlebar
Aluminum, 1" rise
ATB Aluminum 30mm rise
Handlebar Extensions
Not included
Not included
Stem
Aluminum Ahead type
DB Chaos
Saddle
Avenir ATB SS
WTB Speed V
Seatpost
Aluminum micro-adjust, 27.2mm diameter
Aluminum micro-adjust, 27.2mm diameter
Wheels & Tires
Hubs
Aluminum
Front: Shimano M475 disc, Rear: Shimano HB-M475 disc
Rims
Weinmann Zac 19, 32-hole
Alex AL-DM18, 32-hole
Spokes
Stainless steel, 14ga. (2.0mm) straight gauge
Stainless steel, 14ga. (2.0mm) straight gauge
Spoke Nipples
Brass nipples
—
Front Tire
26 x 2.10" WTB EnduroRaptor
26 x 2.10" WTB VelociRaptor
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
71°
—
Seat-tube angle
73°
—
Chainstay / rear center
425.4 mm
—
Wheelbase
1059.2 mm
—
Fork offset / rake
38.1 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.