My Genesis Volare 953 seems to need a 51x2 mm... So I guess that means a 48mm with a step at the top? Cheers!
I'm guessing that's a ZS44 headset. You can use a 48mm cover, but it makes very little difference to the stack height compared with a standard FSA low top cover, usually no more than 3mm.
@gbj_tester started
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My Genesis Volare 953 seems to need a 51x2 mm... So I guess that means a 48mm with a step at the top? Cheers!