Active chainring spider reduces/eliminates feedback through pedals from pedal kickback and chain mass oscillation during descending. Makes a big difference to suspension action and control which allows you to ride faster! 

Specs

• Main material: Al Alloy 7075 T6
• Dimensions: 93 mm x 93 mm x 13 mm
• Weight: 128 g
• Chainline 52mm (Boost only)
• Black hard anodized (Nero) or Nickel Chrome (Pregio)
• Standard BCD 104 mm chainrings
• Provided with Ochain Rubber Kit to switch from 6° to 12° setup

Ochain and chainrings fit only with 5mm length nuts!