Campagnolo BR-RE027 U-Spring Support For Single-Pivot Rear Brake Caliper

Genuine Campagnolo spare part 

The Athena, Record, Chorus, and Super Record 11 speed rear brakes are compatible with BR-RE027.

However, the brakes from the 2017–18 model year are not compatible with this part.

Those brakes might fit this part - please refer to the Campagnolo website for guidence 

Campagnolo code: BR-RE027