The 2011 Felt AR4 is a 16 pound a triathlon/road bike with a carbon and metal matrix composite Felt Road UHM Advanced frame. The frame has a Gloss Clear finish.
The AR4 2011 is a is a light bike at around 15 pounds. It was released in 2011 and costs $3,599 brand new. The AR4 2011 is fully rigid.
Components
The AR4 2011 comes with Shimano Ultegra components, including an aluminum Felt SL stem, an integrated FSA headset and Shimano Ultegra shifters.
Drivetrain
The AR4 2011 has 10 speeds and has a Shimano Ultegra derailleur.
Wheels
It comes with Vittoria Rubino Pro tires (622mm x 23mm) and Mavic Cosmic Elite rims.