Platform:
PC
Description:
Bike seems to use WASD and ignore key-bindings you may have set. If it’s intentional that vehicles have their own movement keys, then the bug is, “vehicle movement keys can not be set in ‘Key Bindings’ menu”. 
Steps To Reproduce:
Set movement keys to something other than WASD. Spawn bike, mount bike, try to steer using the keys you set. Crash into building, get shot while down, spill your drink laughing.
Images / Videos:
n/a
Host or Client:
Host
Players in your game:
1 (host only)
Specifications:
i7-6700K, 32GB, GeForce GTX 1080.