Thanks to the large cassette, you can cover the entire required range and get rid of “extra” switches, chainrings, and levers. On Road bikes it is rare due to the need to cover a large range of gear ratios and keep as little difference between the chainrings of the cassette.

This Cover is designed to give your ALUGEAR chainrings the best appearance with your Ultegra R8100 cranks. This Cover is of the original AERO design and intended specifically for the ALUGEAR chainrings 1speed and 2speed for Shimano R8100 cranks

We carry ALUGEAR Aero Covers which are made for ALUGEAR chainrings and Shimano cranksets. While these aero covers are not compatible with Shimano power meters, they eliminate any gaps found between the crank arm and chainring to reduce drag.

To show off its AERO chainrings in the best possible light, Alugear has developed the matching cover made from CNC-machined aluminum. The high-quality cover conceals the connection between the chainring and crank arm, creating an optimal and seamless appearance.

With the Alugear Aero Cover, you can give your Dura Ace or Ultegra crankset a special look and reduce the air resistance of your crankset. The aluminum Aero Cover was specially developed for combination with the in-house 1-speed or 2-speed Aero chainrings for the asymmetrical 110 millimeter 4-arm bolt circle.

To show off its AERO chainrings in the best possible light, Alugear has developed the matching cover made from CNC-machined aluminum. The high-quality cover conceals the connection between the chainring and crank arm, creating an optimal and seamless appearance.

This Cover is designed to give your Alugear chainrings the best appearance with your Ultegra R8000 cranks. This Cover is of the original AERO design and intended specifically for the Alugear chainrings 1speed and 2speed for Shimano R8000 cranks

Cover PM R9200-P for ALUGEAR chainrings (12-sp. Dura-Ace with Power Meter)

The ALUGEAR Aero Cover for Shimano R9200 cranks nicely covers the space between Shimano R9200 crank arms and ALUGEAR chainrings. This gives you an aerodynamic advantage in addition to providing a clean, pro look. This aero cover is made from 7075 aluminum and comes with bolts that allow for easy installation.

A unique tooth profile eliminates chain noise, reduces wear, and provides smooth operation on the entire system of all the most common combinations of drive trains