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The Felt AR4 offers an advanced aerodynamic road racing machine at a price that's not astronomical. This bike features an aggressively-shaped aero carbon frame and fork for incredible stiffness, stability, and power transfer. Shimano Ultegra components make up the drivetrain, and parts from FSA, Prologo, Vittoria, and Felt round out the spec. A Shimano factory wheelset completes this fun and fast package.

2014

U.S.A.

Felt Aero Road UHC Performance carbon fiber, MMC w/ InsideOut construction, BB30, carbon fiber dropouts, replaceable rear derailleur hanger, internal cable routing (electronic compatible)

Wind Tunnel: This product directly benefited from 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.

InsideOut: 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 heat results in perfectly formed tubes, inside and out.

Shimano RS31

Shimano RS31, 11-speed

Shimano RS31

Vittoria Rubino Pro Slick, 700 x 23c

Shimano

Shimano Ultegra 11-speed STI

Shimano Ultegra 11-speed braze-on

Shimano Ultegra 11-speed short cage

Shimano Ultegra 11-speed 48cm = 165mm 51cm = 170mm 54 - 56cm = 172.5mm 58 - 61cm = 175mm

Shimano Ultegra 11-speed, 11-25T

FSA BB30 w/ 24mm spindle reducers

Prologo Zero T2.0

Felt SuperLite, +/-7° rise, Ø31.8mm 48cm = 80mm 51cm = 90mm 54 - 56cm = 100mm 58cm = 110mm 61cm = 120mm

FSA No. 38 integrated, 1.125" - 1.25" sealed cartridge bearing w/ aluminum 4.5mm cone spacer, 20mm optional secondary cone spacer, 2 x 10mm + 1 x 5mm PC headset spacers, Felt compression device, top cap & aluminum bolt

Shimano Ultegra dual pivot mechanical caliper

Carbon assembly paste, chain plate protector, valve extenders, aero seatpost slot covers, touch-up paint

Shimano Ultegra 11-speed

Road Race