The shape of O.Symetric chainrings makes pedaling harmonic and more efficient. Performance increase of + 10%, better acceleration and reduce lactic acid production of the muscle to - 10%.
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 and performance when biking. O.Symetric chainrings are used by professional bikers in several disciplines.
104/64mm bolt circle and 28 or 38 teeth. Made of high strength 7075 T6 aluminum for increased durability and less weight. Compatible with Shimano XTR FC-M980 2x10-speed cranks.
Fitting for derailleur: 10-speed ||| 9-speed
Included in delivery: 1 chainring
Material: 7075 T6 aluminium
