My guess is that it's a template to set distance from seat tube to the outer radius of the rear wheel to assure desired clearance.
Tim Parker Vienna, VA Partly cloudy azure sky for today's PPTC Back Roads Century in Berryville, VA -----Original Message----- From: John Betmanis [mailto:johnb@oxford.net] Sent: Friday, September 18, 2009 11:20 AM To: classicrendezvous@bikelist.org Subject: Re: [CR] Videos of RIH Framebuilding
oroboyz@aol.com wrote:
> What could that large shaped partial disc affair be? To set seat tube
angle?
Looks like a sector representing the rear wheel where it comes close to
the seat tube. ( http://www.youtube.com/
--
John Betmanis
Woodstock, Ontario
Canada