Threadless Fork In a Threaded Frame?

GoldenMotor.com

discontinuuity

New Member
May 24, 2010
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Colorado, USA
I have an old steel frame that I'm building into a motorbike right now. I also have a newer aluminum frame mountain bike with a suspension fork.

Does anyone know whether it's possible to put the threadless headset fork onto the threaded headset frame, if the steer tubes are the same diameter?