OK, Laugh it up. But I have a larger head and need to know who makes an aero helmet that
will fit. Normal helmets fit fine in L/XL…for reference I wear a 7 3/4, or 7 7/8 baseball cap.
Thanks!
SC
i have a pretty big head but was able to fit into the spiuk kronos once i removed the size adjustment thing. I’m considering removing/cutting the plastic parts that are integrated into the helmet too, but am hesitant to make a permanent modification to the helmet. they squeeze my glasses to my ears though 
anyway, you can probably get one on your head with some adjustment/modification.
I wear an LG Rocket, Large. Fits fine. Don’t care what size my
head is, but it’s a planetoid. Beluga whales ping my head when I swim
because they can’t believe something that bulbous moves through the
water at all.
Measure 23 1/4 circumference, completely unscientifically.
FWIW.
-Jot
I have a strange head…not particulalry big in diameter but wider than most, so the the only readily available aero lids that fit me are:
LG Rocket size L
Giro Advantage II size L
The latter is a bit tighter around the ears so likely less frontal area (on me), but I bought the former years ago before I could ever find a L Giro…still does the job.
LAS Cronometro is quite adjustable in size…I wear 7 3/8-7 1/2 and there is plenty of room to go up.
Rudy Syton also works well for big melons.
+1 for LG Rocket in Large.
At the time the only one I found that fit my head. Admittedly for some reason Europe didn’t seem to get the Giro in large so never got to try that one. Otherwise it seemed the most roomy.
.
x3 for the LG Rocket. I couldn’t fit into the Spiuk at all.
Nah - that would be drafting!! – what you really want is this -
yeah, the LG is OJ-Simpson-proof
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I have used the LG Rocket and currently use the Advantage II with my huge noggin.