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 30 and 2012 Rocky Mountain Oxygen 30.
- Gearing
2012 Rocky Mountain Oxygen 30 has a 6% lower climbing ratio than 2011 Rocky Mountain Oxygen 30.
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.
Lowest1.20:1Highest4.17:1Total range347%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×25; rear size isn’t listed.
Lowest1.13:1Highest4.17:1Total range368%
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 30
2012 Rocky Mountain Oxygen 30
Overview
Model Year
2011
2012
Brand
Rocky Mountain
Rocky Mountain
Model
Oxygen 30
Oxygen 30
Bicycle Type
Road race & triathlon
Road
Colors
White
Gray/White/Green
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 Tiagra
Shimano Tiagra 10spd
Front Derailleur
Shimano Sora
Shimano Tiagra
Rear Derailleur
Shimano Tiagra
Shimano Tiagra
Crankset
FSA Omega EXO, 50/39/30t teeth
Shimano Tiagra 10spd 50/34t
Bottom Bracket
FSA Mega EXO
Shimano Tiagra
Cassette
Shimano Tiagra
Shimano Tiagra 10spd 12-30t
Rear Cogs
9-speed, 12 - 25 teeth
—
Chain
Shimano Tiagra
Shimano Tiagra 10spd
Brakes
Brakes
Tektro R310 Dual Pivot brakes, with shifter levers levers
Tektro R310
Cockpit & Contact Points
Headset
FSA Orbit CS
Cane Creek Five Series
Handlebar
FSA Wing Compact
RMB RD
Handlebar Extensions
Not included
—
Stem
FSA OS-190LX
RMB Road Adjustable
Saddle
RMB Light HoneyComb Flexing Base
RMB SL Honeycomb Flex Base
Seatpost
RMB UD Carbon, 31.6mm diameter
RMB UD Carbon
Wheels & Tires
Hubs
Wheeltech super sealed
—
Rims
Mavic CXP-22N
Shimano R500A
Spokes
Stainless stainless
—
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.