Velopedia Bicycle Archive
Compare Bicycles
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 2009 Felt AR4 and 2011 Felt AR4.
- Identity & price
2011 Felt AR4 had an original MSRP $200 lower than 2009 Felt AR4.
Original MSRP is the published list price when new, not today’s used-bike value.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest1.56:1Highest4.82:1Total range309%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; rear size isn’t listed.
Lowest1.56:1Highest4.82:1Total range309%
Estimated speed at 90 RPMLowest gearHighest gear
Uses front tire 700C×23; 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
2009 Felt AR4
2011 Felt AR4
Overview
Model Year
2009
2011
Brand
Felt
Felt
Model
AR4
AR4
Bicycle Type
Road race & triathlon
Road race & triathlon
Original MSRP
$3,799.00
$3,599.00
Colors
Matte Clear Carbon
Gloss clear
Sizes
51cm, 54cm, 56cm, 58cm, 61cm
51, 54, 56, 58, 61cm
Weight
16.93 lb
16.93lbs
Frameset
Frame Construction
Monocoque
Carbon
Frame Material
Felt Aero UMH carbon fiber
Felt Aero Road UHM Advanced MMC Carbon
Fork
Felt 1.3A UHC-Nano
Felt AR UHC Advanced
Fork Material
Carbon fiber/carbon fiber steerer, aero crown
Carbon
Drivetrain
Component Group
Shimano Ultegra SL
Shimano Ultegra
Shifters
Shimano Ultegra SL STI
Shimano Ultegra
Front Derailleur
Shimano Ultegra SL, braze-on
Shimano Ultegra, braze-on
Rear Derailleur
Shimano Ultegra SL
Shimano Ultegra
Crankset
Shimano Ultegra SL, 39/53 teeth
Shimano Ultegra, 53/39t teeth
Bottom Bracket
Shimano Ultegra SL Hollowtech II
Shimano Hollowtech II
Cassette
Shimano
Shimano Ultegra
Rear Cogs
10-speed, 11 - 25 teeth
10-speed, 11 - 25 teeth
Chain
Shimano 10 Speed
Shimano 10 Speed
Brakes
Brakes
Shimano Ultegra SL brakes, Shimano Ultegra SL STI levers
Shimano Ultegra brakes, Shimano Ultegra levers
Cockpit & Contact Points
Headset
1 1/8" Cane Creek
FSA Integrated
Handlebar
Felt 1.3A 2015 aluminum wing
Felt VS Aero 2014 Aluminum
Handlebar Extensions
Not included
Not included
Stem
Felt 3.1 O/S 6061 aluminum
Felt SL 6061 Aluminum
Saddle
FELT 1.2 Road Saddle
Felt SL Raod
Seatpost
FELT 3.1 Bladed Carbon
Felt Aero UHC Advanced
Wheels & Tires
Hubs
Front: Felt AeroR3 sealed aluminum, Rear: Felt Aero R3 sealed aluminum
Mavic QRM 20H
Rims
Felt AeroR3 aluminum, 20-hole/24-hole
Mavic Cosmic Elite, 20-hole
Spokes
DT Swiss Aerospeed, 15/14ga. (1.8/2.0mm) aero
Mavic Cosmic Elite stainless
Spoke Nipples
Alloy
Brass
Front Tire
700 x 23c Vittoria Rubino Slick Folding
700 x 23c Vittoria Rubino Pro
Wheel Size
700c wheels
700c wheels
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.