Whats the difference between BMX aheadsets and Road/Race aheadsets?

EZ peeps!
Recently i've been looking at headsets (internal & external ones) =]
I found quite a few which say they are for **BMX **only, but are the correct size for my race frame!
Are there any specific differences I gotta look out for, or are 1 1/8 BMX aheadsets the same as normal race bike 1 1/8 headsets?

Zep

dunno about actual compatibility in fitting but bmx heasets tend to be more beefy, cheaper, made of more corrosive materials and are less well sealed than mtb/road headsets. depends what you want really, mostly i'd never go for a bmx one unless: im really broke, (then second hand quality one would be better), gonna really really abuse it (i'd be more worried about my bars/frame/fork/wheels breaking if this is the case), and dont mind maintaining it yourself, (boring but easy). and if you have a decent frame, just go to a bike shop to squeeze it in , or someone who wont ovalise your headtube with brute force and a lump of wood.

thanks for clarifying !

dunno about actual compatibility in fitting but bmx heasets tend to be more beefy, cheaper, made of more corrosive materials and are less well sealed than mtb/road headsets. depends what you want really, mostly i'd never go for a bmx one unless: im really broke, (then second hand quality one would be better), gonna really really abuse it (i'd be more worried about my bars/frame/fork/wheels breaking if this is the case), and dont mind maintaining it yourself, (boring but easy). and if you have a decent frame, just go to a bike shop to squeeze it in , or someone who wont ovalise your headtube with brute force and a lump of wood.
You're talking about old BMX headsets from the 90s.

Current BMX headsets are good quality internal headsets which run a 45/45 degree angled bearings. These will fit some but not all road frames, it depends on the angle of the contacts in your frame headtube.

bloody hell, is my knowledge that old? thats a bit frightening.

bloody hell, is my knowledge that old? thats a bit frightening.
Afraid so Mr Friends.

mmm, so technically you could run a 1 1/8" gyro for a rear brake

Yep front and back if you wanted. You'd need a long headtube though as the gyro has a large stack height.