R9200 cover for Alugear Dura-Ace 12-speed chainring Black

This cover is designed to give your ALUGEAR chainrings the best look with your Dura-Ace R9200 cranks. This cover has an original AERO design and is specifically intended for ALUGEAR 1-speed and 2-speed chainrings for Shimano R9200 cranks.The original ALUGEAR Aero design hides the articulation between the chainring and the crank arm. The cover can be easily removed and replaced if necessary.Features : Intended for use: Single and double ALUGEARchainrings for Shimano 12-speed Dura-Ace R9200 cranks Weight: Cover – 17g; Bolts (M8 11,5mm) – 8g Bolt circle diameter: 110 mm Shimano Asymmetric Mounting: 4-arm spider Material: Aluminium 7075-T6 Manufacturing: CNC milled Surface coating: AnodizedCompatibility: For single and double ALUGEARchainrings with asymmetric 4-arm Shimano cranks of 110 mm: Dura-Ace R9200 Note: the cover is not compatible with Shimano R9200 series cranks with built-in original power sensor