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.
- Data limitation
No geometry is recorded for 2011 Rocky Mountain Oxygen 50 and 2012 Rocky Mountain Oxygen 50.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest1.26:1Highest4.17:1Total range331%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×25; rear size isn’t listed.
Lowest1.26:1Highest4.17:1Total range331%
Speed unavailable: wheel or tire size is missing or unclear.
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
2011 Rocky Mountain Oxygen 50
2012 Rocky Mountain Oxygen 50
Overview
Model Year
2011
2012
Brand
Rocky Mountain
Rocky Mountain
Model
Oxygen 50
Oxygen 50
Bicycle Type
Road race & triathlon
Road
Colors
Red/white
White/Red
Sizes
48, 51, 54, 57, 60
S, M, L, XL, XXL
Weight
—
—
Frameset
Frame Construction
Alloy
—
Frame Material
7005 triple butted alloy
RMB 6061 Alloy
Fork
Carbon
RMB Carbon w/ Alloy Steerer
Fork Material
Carbon
—
Drivetrain
Component Group
Road Mix
—
Shifters
Shimano 105
Shimano 105 10sp
Front Derailleur
Shimano 105
Shimano 105
Rear Derailleur
Shimano 105
Shimano 105
Crankset
FSA Gossamer EXO, 50/34t teeth
Shimano 105 50/34t
Bottom Bracket
FSA Mega EXO
Shimano 105
Cassette
Shimano 105
Shimano 105 10spd 12-27t
Rear Cogs
10-speed, 12 - 27 teeth
—
Chain
Shimano 105
Shimano 105
Brakes
Brakes
Tektro R540 brakes, with shifter levers levers
Tektro R540
Cockpit & Contact Points
Headset
FSA Orbit CS
Cane Creek Five Series
Handlebar
FSA Wing Compact
Easton Wing Ergo
Handlebar Extensions
Not included
—
Stem
FSA OS-190LX
RMB Road Adjustable
Saddle
San Marco Ponza Power
RMB SL Honeycomb Flex Base
Seatpost
RMB UD Carbon, 31.6mm diameter
RMB UD Carbon
Wheels & Tires
Hubs
Fulcrum Racing 7
—
Rims
Fulcrum Racing 7
Shimano RS10
Spokes
Fulcrum Racing 7
—
Front Tire
700 x 25c Vittoria Zaffiro
Vittoria Zaffiro 700 X 25c
Wheel Size
700c wheels
—
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.