Piaggio Group Americas is recalling a bevy of models for a front brake master cylinder that may allow air in the hydraulic lines.

The recall affects 1,628 units of the 2014-2015 Aprilia Tuono V4 1000, 2016 Tuono V4 1100, 2015 Caponord 1200 ABS/ADD, and 2016 Caponord Rally motorcycles, which were manufactured June 18, 2013 to June 13, 2016.