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 2012 Rocky Mountain Oxygen 30 and 2011 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.
Lowest1.13:1Highest4.17:1Total range368%
Speed unavailable: wheel or tire size is missing or unclear.
Lowest1.20:1Highest4.17:1Total range347%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×25; 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
2012 Rocky Mountain Oxygen 30
2011 Rocky Mountain Oxygen 30
Overview
Model Year
2012
2011
Brand
Rocky Mountain
Rocky Mountain
Model
Oxygen 30
Oxygen 30
Bicycle Type
Road
Road race & triathlon
Colors
Gray/White/Green
White
Sizes
S, M, L, XL, XXL
48, 51, 54, 57, 60
Weight
—
—
Frameset
Frame Construction
—
Alloy
Frame Material
RMB 6061 Alloy
7005 triple butted alloy
Fork
RMB Carbon w/ Alloy Steerer
Carbon
Fork Material
—
Carbon
Drivetrain
Component Group
—
Road Mix
Shifters
Shimano Tiagra 10spd
Shimano Tiagra
Front Derailleur
Shimano Tiagra
Shimano Sora
Rear Derailleur
Shimano Tiagra
Shimano Tiagra
Crankset
Shimano Tiagra 10spd 50/34t
FSA Omega EXO, 50/39/30t teeth
Bottom Bracket
Shimano Tiagra
FSA Mega EXO
Cassette
Shimano Tiagra 10spd 12-30t
Shimano Tiagra
Rear Cogs
—
9-speed, 12 - 25 teeth
Chain
Shimano Tiagra 10spd
Shimano Tiagra
Brakes
Brakes
Tektro R310
Tektro R310 Dual Pivot brakes, with shifter levers levers
Cockpit & Contact Points
Headset
Cane Creek Five Series
FSA Orbit CS
Handlebar
RMB RD
FSA Wing Compact
Handlebar Extensions
—
Not included
Stem
RMB Road Adjustable
FSA OS-190LX
Saddle
RMB SL Honeycomb Flex Base
RMB Light HoneyComb Flexing Base
Seatpost
RMB UD Carbon
RMB UD Carbon, 31.6mm diameter
Wheels & Tires
Hubs
—
Wheeltech super sealed
Rims
Shimano R500A
Mavic CXP-22N
Spokes
—
Stainless stainless
Front Tire
Vittoria Zaffiro 700 X 25c
700 x 25c Vittoria Zaffiro
Wheel Size
—
700c wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.