A nice solid chainring made of 7075-T6 alluminium.
I never really went fast enough to use the large chainring much. Wear appears to be to the inside edges of the teeth and inner face of the chainring. The actual radius or root of the tooth profile where the chain rollers go does not appear to be very worn at all (as the black anodising is still present).
Will of course fit shimano and other cranksets that use a 104mm bolt circle diameter.