Velopedia Bicycle Archive

Compare Bicycles

Compare published geometry, gearing and specifications for up to three bicycles.

1 of 2 bicycles

At a glance

Key differences

Supported differences are shown below. Data limitations are labeled separately.

  1. Gearing

    1996 Diamondback Topanga has a 21% lower climbing ratio than 1993 Diamondback Topanga.

    A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.

Gearing comparison

Lower gears help on climbs. Higher gears suit higher speeds.

RPM

RPM = pedal turns per minute.

1996 Diamondback TopangaSize Legacy reference · 42/32/22T · 11–28T · 7-speed
Lowest0.79:1Highest3.82:1Total range486%
Estimated speed at 90 RPMLowest gear5.5 mphHighest gear26.6 mph

Rear tire: 26×2.

1993 Diamondback TopangaSize Legacy reference · 48/38/28T · 12–28T · 7-speed
Lowest1.00:1Highest4.00:1Total range400%
Estimated speed at 90 RPMLowest gear6.9 mphHighest gear27.8 mph

Uses front tire 26×1.95; 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.

Try other gearing

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.
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Specification
1996 Diamondback Topanga
1993 Diamondback Topanga
Overview
Model Year
1996
1993
Brand
Diamondback
Diamondback
Model
Topanga
Topanga
Bicycle Type
Mountain bike, non-suspension
Mountain bike, non-suspension
Original MSRP
$429.00
$400.00
Colors
Gunpowder, Olive Metallic
—
Sizes
14", 16", 18", 20"
14, 16, 18, 20. Womens: 16, 20.
Weight
—
—
Frameset
Frame Construction
TIG-welded steel
TIG-welded steel
Frame Material
Chromoly, oversize
Chrome-moly OS main tubes
Fork
Tange
Diamond Back chrome-moly
Fork Material
Chromoly, forged dropouts, unicrown crown
—
Drivetrain
Component Group
Shimano Alivio
Shimano Altus A20 Rapidfire Plus
Shifters
Grip Shift SRT-400
Shimano Altus A20 Rapidfire Plus
Front Derailleur
Shimano Alivio top-swing, top-pull
Shimano Altus C10
Rear Derailleur
Shimano STX
Shimano Altus A20
Crankset
SR CW-CH35, 22/32/42 teeth
Shimano Altus A20, 28/38/48 teeth
Bottom Bracket
Shimano BB-LP26, 110 mm spindle
—
BB Shell Width
68mm English
—
Rear Cogs
7-speed, 11 - 28 teeth
7-speed, 12 - 28 teeth
Chain
Shimano CN-IG31, 1/2 x 3/32"
Shimano CN-UG50
Pedals
Wellgo LU-951
Victor Zytel MTB w/cromo axle
Brakes
Brakes
Chang Star 857AT brakes, Chang Star 264A levers
Shimano Altus C10 brakes, levers
Cockpit & Contact Points
Headset
1 1/8" Victor VP-H97
—
Handlebar
Hsin Lung MTB 110
Diamond Back
Handlebar Extensions
Avenir
—
Stem
Hsin Lung MTS 310-5
Diamond Back MTB TIG
Saddle
Selle San Marco Linea Pro
Avenir Gel Comp
Seatpost
Lee Chi SP-204 alloy, 25.8 mm diameter
Alloy 300mm w/QR
Wheels & Tires
Hubs
—
Shimano alloy
Rims
Araya GP-710, 32-hole
Sun Metal L18, 36-hole
Spokes
Stainless steel, 2.0mm straight gauge
—
Spoke Nipples
Brass nipples
—
Front Tire
26 x 2.00" Tioga Psycho
26 x 1.95" Avenir Vigor
Rear Tire
26 x 2.00" Tioga Psycho T
—
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
71°
71°
Seat-tube angle
73°
71°
Chainstay / rear center
424.2 mm
424.2 mm
Wheelbase
1059.2 mm
1077 mm
Fork offset / rake
45 mm
45.7 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.

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