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Felt AR4 (2012)


Product Category
Brand Felt
Size51, 54, 56, 58, 61cm
ColorGloss Carbon


Bottom bracketFSA MegaExo
BrakesShimano Ultegra Super SLR dual pivot w/ cartridge brake pads
CassetteShimano 11-25T
ChainShimano 10 speed
CranksetFSA Team Issue Compact, 52/36T; 51cm=170mm, 54cm-56cm=172.5mm, 58cm-61cm=175mm
FeaturesWind Tunnel This product directly benefited form advanced computer design work using Computational Fluid Dynamic (CFD) software from CD-Adapco as well as extensive wind tunnel testing to make them as aerodynamically efficient and technologically advanced as possible.  

Internal Cable Routing
This indicates the use of flow-through internal cable routing.  It reduces wind drag and prevents contaminants from entering and interfering with the function of brake or shifter cables.  

Inside Out
InsideOut is a revolutionary internally optimized molding process that completely eliminates excess material, and therefore weight, inside the frame tubes and junctions.  Placing polyurethane inserts inside the frame during the molding process—especially at the bottom bracket and head tube area—and then applying  a precise amount of pressure and hear results in perfectly formed tubes, inside and out.  

Modular Monocoque
Modular Monocoque Construction (MMC) is an advanced carbon fiber manufacturing technique that allows Felt to mold individual sections of the frameset and then join them together.  The main advantage of MMC is that it allows each section to be optimized to meet the specific engineering demands of that particular section of the frame.  

UHC Advanced
Ultra Hybrid Carbon Advanced refers to the lightweight, stiff and durable blend of carbon fiber material used in the performance frames bearing the UHC Advanced label.  Because the high modulus materials have a higher fiber to resin ratio, these frames are typically about 20% lighter than UHC Performance frames while remaining equally strong stiff.  UHC Advanced offers the best combination of value and performance.
Fork typeFelt Aero Road UHC Advanced monocoque fork, 100% carbon fiber 1.125"" steerer tube, crown, blades, & dropouts
Frame typeFelt Aero Road UHC Advanced MMC carbon fiber w/ 3KP weave, InsideOut internal molding process, machined threaded aluminum BB shell, internal mechanical cable routing, carbon fiber dropouts & 6061 forged aluminum replaceable derailleur hanger
Front derailleurShimano Ultegra braze-on
HeadsetFSA 1.125"" integrated, w/ aluminium 25mm conical spacer, 1 X 10mm aluminum headset spacer, 2 x 5mm aluminum headset spacer, Felt aluminum top cap & 7075 anodized aluminum bolt
Hub frontShimano RS30 forged aluminium angular contact bearing 16H w/ Shimano quick release
Hub rearShimano RS30 forged aluminium angular contact bearing 20H w/ 10 speed HG freehub body w/ Shimano quick release
Rear derailleurShimano Ultegra SS short cage
Recommended forRoad, Club Ride, Elite Club Ride, Road Race
Rims typeShimano WH-RS30 30mm deep aluminium rim, 16H front, 20H rear
SaddleFelt SL road saddle w/ carbon fiber injection molded base, polyurethane foam, embossed cover & hollow Cr-Mo rails
ShiftersShimano Ultegra STI
SpokesShimano RS30 16H x 278mm front & 20 x 294mm rear bladed aero stainless steel w/ red aluminum nipples
StemFelt SL 6061 aluminium 3D forged +/-7° rise, 31.8mm bar clamp, custom Cr-Mo bolts, 131g; 51cm=90mm, 54cm=100mm, 56cm=100mm, 58cm=110mm, 61cm=120mm
TiresVittoria Rubino Pro Slick, 700c x 23c
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