O-Symetric O.Symetric Aero Chainring – 58T – 110 BCD – 4 Bolt

O.Symetric outer chainring for 4-bolt 110 BCD. The shape of O.Symetric chainrings makes pedaling harmonic and more efficient. When a biker uses classical shaped chainrings, effort changes in different crank positions. The non-circular shape of the O.Symetric chainrings brings effort in balance and allows a “more rounded pedaling” for increased efficiency performance.
Made of high strength 7075 T6 aluminum for increased durability and less weight.

This is a special edition of the O.Symetric that is not in production. The chainring has been optimized for time trials, making it more aerodynamic.

Fits Shimano Dura-Ace – FC9000, Ultegra – FC6800 and 105 – FC5800

This chainring has been used a very little, still a lot of miles left!

Specifications:

• Used a very little
• For Shimano 4-bolt 110 BCD
• 11 speed
• 58T – Perfect for TT’s
• Prototype of the O.Symetric
• The same chainring as Chris Froome uses
• Non-circular shape