Orbea rubber grommet MW20N FD CAP Φ8 / Plastic cap for 7.25mm opening
This is the little rubber grommet used in the following bycyles:
Orbea Occam (2018) both aluminium and carbon frames
Orbea Laufey (previously Loki, 2016 - 2017)
Orbea Orca Aero (2018)
Orbea Terra OMP carbon (2017/2018)
Orbea call this the TAPON DESVIADOR D8 or CAP FED D8 Orca 14