The Cannondale R 4000 Si is a triathlon/road bike with an aluminum T6 frame. The frame comes in colors like yellow,  white  /  blue and Super  Black  (Gloss)  With  Chrome  Decals.

It was first released in 2001 and again in 2002. Due to the frame materials and other factors, we estimate that this bike weighs around 25 pounds. The R 4000 Si is fully rigid.

Components

The R 4000 Si comes with Road Mix and Shimano Dura-Ace components, including a Zepp stem, an integrated, threadless Campagnolo Record headset and dual-control Shimano Dura-Ace shifters.

Drivetrain

The R 4000 Si has 9 speeds and has a Shimano derailleur.

Wheels

It comes with kevlar Continental tires (622mm x 23mm) and Campagnolo Proton Mavic Ksyrium SSC rims.