Corona AbsoluteBLACK PVD Rainbow Oval Shimano Set

These AbsoluteBLACK PVD Rainbow Oval Shimano chainrings are a gem for your bike. These chainrings are extra durable due to the titanium coating, have a low weight, increase your pedalling efficiency due to the oval shape and of course look very cool! These chainrings come as a set and fit Shimano 105 R7000, Ultegra R8000 and Dura-Ace R9100 cranksets.

Aluminium chainrings with titanium PVD coating.
These AbsoluteBLACK PVD Rainbow Oval Shimano chainrings are made from strong and light 7075 aluminium. Here is a titanium coating applied to an oil slick treatment. This coating makes the chainrings not wear easily and they have an oil slick colour.

Increased pedaling efficiency due to oval shape.
The AbsoluteBLACK PVD Rainbow Oval Shimano chainrings have an oval shape. This shape reduces the pedalling deadlock which occurs with round chainrings when the cranks are in the vertical position. Research at Primorska University in Slovenia has shown that this oval shape can improve pedalling efficiency by almost 10%. In addition, it reduces the force on your knees, making you less likely to suffer knee injuries.

Blead bolts needed
The blade bolts to fit this AbsoluteBLACK PVD Rainbow Oval Shimano can be found here.

Set of 2 AbsoluteBLACK PVD Rainbow Oval Shimano Chainrings (1 outer ring and 1 inner ring)