The most reasonably priced component used on the Cb1000ra 2010 (a) France / Abs Cmf Gasket Kit B is the Washer,plug,drain 12.
On this parts fiche the O-ring,14.8x2.2 is the most specified component.
Parts such as the Gasket Kit B: Wash,sealing,7mm, O-ring 32.95x2.62, Washer,neutral, Washer,plug,drain 12 are included in the Cb1000ra 2010 (a) France / Abs Cmf Gasket Kit B parts fiche.