Z1OwnersClub GB

Guys, I don't have anything to compare the valve and collet shapes with sooooooo....
Is this round or square??
Yes I know its a stupid question but I just need clarification Eyesight ain't as good as it was either!!
It's out of a z1b but may have been replaced at some point.
Cheers
Pete

It's not round or square it's a chamfered square.
Bit like this \_______/ but the angle of the lower chamfer is less than the higher one.

Even though it's not actually square , That is known as a square keeper and groove.

cool, thanks for the clarification guys.
Much appreciated.
Pete