Kit osymetric trays Stronglight Str.110 Bcd/Shi.Fc9100 4 Br [Size 38x52T]

Tray kit O.SYMETRIC 4 branches
DURA-ACE FC-9100

• oval design for optimal movement .
• material: aluminum Advantages .
• the point is overcome more easily .
• easier to ride with a higher gear .
• higher efficiency: i.e. lower heart rate with equivalent effort .
• . permanent pressure in the knees is reduced