Funny thing -didn't saw any of them before
It's 48T hyperdrive 94BCD chainring with integrated bashguard, one hole is threaded (to easier fit to cranks like Sugino with one mounting point hidden hehind the crankarm)
Found one like them showed in bike
viewtopic.php?f=1&t=130850&start=10
It's 48T hyperdrive 94BCD chainring with integrated bashguard, one hole is threaded (to easier fit to cranks like Sugino with one mounting point hidden hehind the crankarm)
Found one like them showed in bike
viewtopic.php?f=1&t=130850&start=10