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.
- Gearing
1997 Rocky Mountain Fusion has a 7% lower climbing ratio than 1998 Rocky Mountain Fusion.
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.
Lowest0.73:1Highest3.82:1Total range521%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×1.95; rear size isn’t listed.
Lowest0.79:1Highest3.82:1Total range486%
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 Rocky Mountain Fusion
1998 Rocky Mountain Fusion
Overview
Model Year
1997
1998
Brand
Rocky Mountain
Rocky Mountain
Model
Fusion
Fusion
Bicycle Type
Mountain bike, non-suspension
Mountain bike, front suspension
Original MSRP
$699.00
$699.00
Colors
Silver
Purple
Sizes
14.5", 16", 17.5", 18.5", 19.5", 21"
14", 16", 17.5", 18.5", 19.5", 20"
Weight
25.4 lb
26.4 lb
Frameset
Frame Construction
TIG-welded
Welded
Frame Material
Tange chromoly, double-butted
Chromoly, double-butted
Fork
Rmb
Rock Shox Indy
Fork Material
Chromoly, unicrown crown
Aluminum/magnesium, triple-clamp crown
Drivetrain
Component Group
Shimano STX
Mountain Mix
Shifters
Grip Shift SRT-400i
Grip Shift ESP 500
Front Derailleur
Shimano STX top-swing, top-pull/clamp-on 28.6 mm
Shimano STX top-swing, top-pull/clamp-on 31.8mm
Rear Derailleur
Shimano Deore LX SGS
Grip Shift ESP 7.0
Crankset
Cyclone CPI, 22/32/42 teeth
Shimano Alivio, 22/32/42 teeth
Bottom Bracket
Shimano BB-LP26, 110 mm spindle
Shimano BB-LP26
BB Shell Width
68mm English
—
Rear Cogs
7-speed, 11 - 30 teeth
7-speed, 11 - 28 teeth
Chain
Sachs SC-40, 1/2 x 3/32"
Taya TB-600, 1/2 x 3/32"
Pedals
Fasten Sport w/clips & straps
Aluminum cage w/clips & straps
Brakes
Brakes
Shimano Deore LX V-Brake brakes, Avid SD-1.9 levers
Avid 1D-20 brakes, Avid AD-1.0 levers
Cockpit & Contact Points
Headset
1 1/8" threadless Ritchey Logic
1 1/8" threadless Ritchey Logic
Handlebar
RMB aluminum
RMB aluminum
Handlebar Extensions
Not included
Not included
Stem
RMB aluminum
RMB forged aluminum
Saddle
Selle Italia
Selle Italia Aventgarde 1
Seatpost
RMB aluminum, 26.8 mm diameter
RMB aluminum
Wheels & Tires
Hubs
Shimano STX
Shimano Alivio
Rims
Sun Rims DW 6000, 32-hole
Sun Rims CR18
Spokes
DT stainless steel, 1.8mm straight gauge
DT stainless steel, 2.0mm straight gauge
Spoke Nipples
Brass nipples
—
Front Tire
26 x 1.95" Ritchey Alfa Bite
26 x 2.10" Ritchey Mega-Bite Z-Max SC
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
Head-tube angle
70.5°
70.5°
Seat-tube angle
73°
73.5°
Chainstay / rear center
430 mm
—
Wheelbase
1049 mm
—
Fork offset / rake
38.9 mm
40.6 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.