Mine where sold as PRW rockers,but when i got them they had a faint cat symbol on the bottom.I bought them 3 or more years ago so may be the newer ones have changed some.I see yours are way down from the roller.I wonder if it has something to do with them being 1.7 verses my 1.5s.Mine are almost level with the roller but there was a few that would touch the valve so i ground them.