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.
- Gearing
1997 ProFlex Attack has a 14% lower climbing ratio than 1995 ProFlex Attack.
A lower ratio gives more mechanical advantage; rear-wheel rollout determines distance per crank turn.
- Identity & price
1997 ProFlex Attack had an original MSRP $355 lower than 1995 ProFlex Attack.
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.
Lowest0.79:1Highest3.82:1Total range486%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2.1; rear size isn’t listed.
Lowest0.92:1Highest3.82:1Total range417%
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
1997 ProFlex Attack
1995 ProFlex Attack
Overview
Model Year
1997
1995
Brand
ProFlex
ProFlex
Model
Attack
Attack
Bicycle Type
Mountain bike, front & rear suspension
Mountain bike, front & rear suspension
Original MSRP
$845.00
$1,200.00
Colors
Green/yellow, Red/Black
Burgundy metallic, Green Metallic
Sizes
S, M, L, XL
14", 16", 18", 20"
Weight
—
—
Frameset
Frame Construction
TIG-welded
Welded aluminum
Frame Material
7000 aluminum, butted
7005 aluminum
Fork
RST 461
Girvin Vector
Fork Material
Aluminum/chromoly, triple-clamp crown
Aluminum
Rear Shock
Girvin MCU, 3.5" travel
—
Drivetrain
Component Group
Shimano STX-RC/Alivio
Shimano STX
Shifters
Sachs Power Grip Plus
Grip Shift SRT-600
Front Derailleur
Shimano Alivio top-swing, bottom-pull/clamp-on 31.8 mm
Shimano STX, bottom-pull/clamp-on 31.8 mm
Rear Derailleur
Shimano STX-RC
Shimano STX
Crankset
Shimano Alivio, 22/32/42 teeth
Sugino Impel 350, 22/32/42 teeth
Bottom Bracket
Shimano BB-LP26, 110 mm spindle
—
BB Shell Width
68mm English
—
Rear Cogs
8-speed, 11 - 28 teeth
7-speed, 11 - 24 teeth
Chain
Sachs SC-40, 1/2 x 3/32"
Shimano CN-UG30, 1/2 x 3/32"
Pedals
Wellgo LU-946S
Wellgo LU-939
Brakes
Brakes
Chang Star 877AT brakes, Chang Star 297 levers
Shimano STX M-System brakes, Dia-Compe PC-7 levers
Cockpit & Contact Points
Headset
1 1/8" threadless Dia-Compe Kontak Aheadset ST-2
1 1/8" Dia-Compe Kontak Aheadset SA
Handlebar
Aluminum
Alloy
Handlebar Extensions
Girvin
Girvin alloy
Stem
Girvin forged
Girvin Vector
Saddle
Selle San Marco Linea Pro
Ritchey Logic
Seatpost
Polygon PM-312, 27.2 mm diameter
Kalloy SP-246, 27.2 mm diameter
Wheels & Tires
Hubs
Front: Formula FM 11 Q/R, Rear: Shimano STX-RC
Shimano STX
Rims
Weinmann Zac 19, 32-hole
Sun Metal CRT16 II, 32-hole
Spokes
Chung Nan stainless steel, 1.8mm straight gauge
Stainless steel, 1.8 mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
26 x 2.10" Panaracer Duster II
26 x 2.10" Tioga Psycho kevlar
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
71°
71°
Seat-tube angle
74°
74°
Chainstay / rear center
425 mm
426 mm
Wheelbase
1079 mm
1068 mm
Fork offset / rake
44.5 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.