Originally Posted by
bikemig
Beautiful bike and a sweet build. I've never seen a Lyonsport before.
Thanks! Jeff Lyon is a builder in Oregon, who I think is now pretty much retired. This frame has a lightweight top tube 7/4/7 and light weight down tube. Clearance for 35mm tires w/ fenders and a provision for internal wiring in the front fork.
Here is an older YouTube interview with Jeff: