I've looked through the rulebook and
SM codex but haven't found anything to answer this question. So hoping the good people of dakka will help
A Space Marine attack bike has two wounds on his profile, lets assume that a lone attack bike gets shot and loses one wound only, what happens to the bike?
(A) takes a wound as normal with no effects to the models abilities until he loses his last wound (and therefore is removed as a casualty)
(B) takes a wound as normal and loses the ability to shoot the sidecar weapon (two wounds, two models on bike)
Cheers