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Ducati Corse
Posts: 3,134
Join Date: Jan 2002
Location: notts
Mood: Bloo and Yellow.. and Red now ;)
O and X denote the cross section of the sealing ring that sits inside the side plates over the rivet.
The O profile essentially gives a single point of contact with which to seal against the plate.
The X section gives 2 points of conatct so is considered the more durable.
I'd go X ring every time.
Linear Mode
