- Frame
- 7000 aluminum, double-butted w/aluminum swingarm
- Groupset
- Shimano Deore XT/LX
Velopedia Bicycle Archive
Compare Bicycles
Compare published geometry, gearing and specifications for up to three bicycles.
Edit comparison
Add a bicycle
Search the Archive without leaving this comparison.
1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Gearing
1997 ProFlex Beast has a 7% lower climbing ratio than 1996 ProFlex Beast.
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.
Lowest0.79:1Highest3.82:1Total range486%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×1.95; rear size isn’t listed.
Lowest0.73:1Highest4.00:1Total range545%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×2; 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
1996 ProFlex Beast
1997 ProFlex Beast
Overview
Model Year
1996
1997
Brand
ProFlex
ProFlex
Model
Beast
Beast
Bicycle Type
Mountain bike, front & rear suspension
Mountain bike, front & rear suspension
Original MSRP
$1,799.00
$1,795.00
Colors
Blue/green
Orange/red, Red/Black Fade W/Yellow
Sizes
14", 16", 18", 20"
S, M, L, XL
Weight
26.5 lb
—
Frameset
Frame Construction
Welded aluminum
TIG-welded
Frame Material
7000 aluminum, double-butted w/aluminum swingarm
Easton ProGram Elite double-butted
Fork
Girvin AL MCU
Girvin Pipe-Line Chubby
Fork Material
Aluminum, ovalized, Girvin Linkage crown
Aluminum/magnesium, double triple-clamp crown
Rear Shock
Girvin MCU, 3.5" travel
Noleen NR-2, 4.0" travel
Drivetrain
Component Group
Shimano Deore XT/LX
Grip Shift/Shimano Deore LX
Shifters
Grip Shift SRT-600
Grip Shift ESP 700
Front Derailleur
Shimano Deore LX, bottom-pull
Shimano Deore LX top-swing, bottom-pull/clamp-on 31.8 mm
Rear Derailleur
Shimano Deore XT SGS
Grip Shift ESP 7.0
Crankset
Sugino Impel 500, 22/32/42 teeth
Sugino Impel 500, 22/32/44 teeth
Bottom Bracket
Shimano BB-UN51, 110 mm spindle
Shimano BB-UN52, 110 mm spindle
BB Shell Width
68mm English
68mm English
Rear Cogs
8-speed, 11 - 28 teeth
8-speed, 11 - 30 teeth
Chain
Sachs SC40, 1/2 x 3/32"
Sachs SC-40, 1/2 x 3/32"
Pedals
Wellgo LU-940 w/clips & straps
Proflex Mag-C (clipless)
Brakes
Brakes
Magura Hydraulic HS22 brakes, Magura Hydrostop levers
Magura Hydraulic HS11 brakes, Magura Race-Line levers
Cockpit & Contact Points
Headset
1 1/8" Dia-Compe Kontak Aheadset AL
1 1/8" threadless Dia-Compe Kontak Aheadset AL-2
Handlebar
Hsin Lung alloy
Titec Enduro Hell Bent
Handlebar Extensions
Girvin alloy
Not included
Stem
Girvin Forged
Girvin Reversible forged
Saddle
Vetta SL
Selle San Marco Tecno Dynamica
Seatpost
Kalloy SP-258, 27.2 mm diameter
Polygon PM-747, 27.2 mm diameter
Wheels & Tires
Hubs
—
Shimano Deore LX
Rims
Mavic 221, 32-hole
WTB SpeedMaster, 32-hole
Spokes
DT stainless steel, 1.8mm straight gauge
DT stainless steel, 1.8mm straight gauge
Spoke Nipples
Brass nipples
Brass nipples
Front Tire
26 x 1.95" WTB Primal Raptor
26 x 2.00" WTB VelociRaptor 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
422 mm
425 mm
Wheelbase
1077 mm
1080 mm
Fork offset / rake
44.5 mm
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.