diamondback viper BB

[darrencottam]

I'm wondering if any of you could help me out a bit here..
I got a viper frame I reckon it's early nineties and I'm not sure what BB it would take?
any help appreciated

[calmac]

is BB threaded or not ?
if threaded likely to be euro if not and about 52mm diameter it'll be USA

[darrencottam]

nope not threaded.. so USA
it's what i initially thought but i wasn't too sure as i am a bit of a noob with nineties bikes
thanks for the info!