Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Data limitation
No geometry is recorded for 2005 Rocky Mountain Fusion.
- Data limitation
Only 2003 Rocky Mountain Fusion has enough published drivetrain data for gearing calculations.
- Equipment
2005 Rocky Mountain Fusion has 20 mm more front travel than 2003 Rocky Mountain Fusion in the selected sizes.
Front travel is fork suspension stroke, not rear-wheel travel.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest0.69:1Highest3.82:1Total range555%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 26×1.95; rear size isn’t listed.
Gearing unavailable for this size.
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
2003 Rocky Mountain Fusion
2005 Rocky Mountain Fusion
Overview
Model Year
2003
2005
Brand
Rocky Mountain
Rocky Mountain
Model
Fusion
Fusion
Bicycle Type
Mountain bike, front suspension
Mountain bike, front suspension
Original MSRP
$685.00
Not documented
Colors
DX Red/Flat Anthracite
Glacier Blue, Shadow
Sizes
14.5", 16", 17.5", 18.5", 19.5", 21", 22.5"
14.5", 16", 17.5", 18.5", 19.5", 21"
Weight
—
—
Frameset
Frame Construction
TIG-welded
TIG-welded
Frame Material
7005 aluminum
RMB 7005 aluminum
Fork
Rock Shox Judy TT, 80mm travel
Rock Shox Judy TT, 100mm travel
Fork Material
Aluminum/magnesium, single crown
Aluminum, single crown
Drivetrain
Component Group
Mountain Mix
Mountain Mix
Shifters
Shimano Acera EZ Fire Plus
Shimano Alivio
Front Derailleur
Shimano Acera, top-pull/clamp-on 31.8mm
Shimano Alivio
Rear Derailleur
Shimano Deore SGS
Shimano Deore
Crankset
Shimano Alivio FC-MC20, 22/32/42 teeth
Shimano FC-MC20
Bottom Bracket
Shimano BB-UN25, 110mm spindle
Shimano BB-UN25
BB Shell Width
73mm English
—
Rear Cogs
8-speed, 11 - 32 teeth
8-speed
Chain
Shimano CN-HG50, 1/2 x 3/32"
Shimano CN-IG51, 1/2 x 3/32"
Pedals
Big Flats
Wellgo Big Flats
Brakes
Brakes
Shimano BR-420 brakes, Shimano Acera levers
Shimano M465 disc front/Shimano BR-M465 Mechanical Disc rear brakes, Shimano Alivio levers
Cockpit & Contact Points
Headset
1 1/8" threadless Ritchey
1 1/8" threadless FSA
Handlebar
RMB Rise
RMB XC riser
Handlebar Extensions
—
Not included
Stem
Rmb
Rmb
Saddle
RMB Custom
Velo comfort
Seatpost
RMB, 26.8mm diameter
Rmb
Wheels & Tires
Hubs
Shimano Alivio
Front: Shimano HB-M495 disc, Rear: Shimano FH-M495 disc
Rims
Alex Ace 19, 32-hole
Alex DP-17, 32-hole
Spokes
DT stainless steel, 15ga. (1.8mm) straight gauge
DT Swiss Champion stainless steel
Spoke Nipples
Brass nipples
—
Front Tire
26 x 1.95" Maxxis MOFO XC
26 x 2.10" Maxxis High Roller XC
Wheel Size
26" wheels
26" wheels
Geometry · choose a size for each bicycle
Geometry size
—
Head-tube angle
70.5°
—
Seat-tube angle
73°
—
Chainstay / rear center
425 mm
—
Wheelbase
1055 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.