Shimano  Ultegra ST-6600 Shifter 10 spd

Ergonomic innovation is probably more critical to the higher standard of the new 10-speed S.T.I. levers than the added gearing. The narrower cradle-style perch welcomes the high-on-the-hood riding style and accommodates all sizes of hands. The shift internals borrow the robustness from our MTB technology which results in a smooth and effortless shift.

• Ergonomic design: Refined lever hood for improved ergonomics.
• Robust internal mechanism
• Same lever response as Dura-Ace
• Ergonomic shift stroke movement
• Effortless shifting: Shift effort is reduced on release lever.
• Short stroke shifting: Inward shift stroke distance is reduced by 10mm.
• Weight:490g(pair)