The K2 Mod 4.0 is a triathlon/road bike with a carbon frame. The frame comes in colors like charcoal,  gray  /  yellow and  silver  /  brushed.

Originally released in 2002, there are 4 versions of this bike. Due to the frame materials and other factors, we estimate that this bike weighs around 20 pounds. The Mod 4.0 is fully rigid.


The Mod 4.0 comes with Shimano Ultegra components, including a Forgie Race Face Strada 31.8 stem, a threadless, integrated, Cane Creek IS-2 FSA Orbit IS headset and dual-control Shimano Ultegra STI shifters.


The Mod 4.0 has 9,10 speeds and has a Shimano derailleur.


It comes with Vittoria tires (622mm x NaN) and aero, Mavic Ritchey Pro rims.

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Type Triathlon, Road
Year 2002, 2003, 2004, 2005
Alt. Names Mod4.0, MOD4.0, Mod 4.0, MOD 4.0