Threadfit 82.5 BB "standard" (ref: COlnago C60 launch).

[Mark Kelly]

Does anyone have the specifications for this "standard"?

On the surface it seems a good thing to incorporate in a frame made from materials other than steel or Ti.

[crumpton]

its not a standard but rather a spec. and a patent pending one at that according to Nag. as a large tube dia builder, i too like the idea but it falls short on being able to use a true BB30 crank. i doubt they care.

i've drawn an iteration that would accommodate anything(along with accompanying BBs) out there but unfortunately each application requires its "custom" bb to work. in this cnc age, not that big of a deal but still would come at a price for the small volumes i operate in.

i would really dig on a true M47x1.6x68mm standard that future OEs could address in their proprietary bearing needs.

Does anyone have the specifications for this "standard"?

On the surface it seems a good thing to incorporate in a frame made from materials other than steel or Ti.