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Recently had to educate myself on the difference between a stepped hub and a non stepped hub.
First some history-- I'm rebuilding a 1939 knucklhead --only one I've ever seen is Matt Olsen's Last OCtober when I surprised him and Carl while Pheasant Hunting in South Dakota.
They showed me a stepped hub, I even took a picture of it, but the picture didn't turn out very well and I couldn't remember what I was pointing to in the picture.
Stepped hubs were used in 1939 (not sure and don't really care to know when else they were used) Probably used in 1940 too until the supply ran out.
Most of you reading this are experts and know this already, but for any newbies that stumble across this post, attached are pictures of a stepped vs non-stepped hub
Enjoy,
Jim Bodnar
P.S. If I can convince my Dad to find his way to the 21st century and buy a digital camera, I'll post pictures of his amazing progress with this bike. I owned it for 10 years and never made a lick of progress. I delivered it to him in late March and we almost have a very nice and complete rolling chassis-- actually I shoudl say it is almost done except final paint and the motor. I still don't know what to do about the motor--matching 39 cases but everything else is mid-40s FL. Probably rebuild what I've got--with junk parts costing what they do these days, who could afford to build a small port motor from scratch? not me
First some history-- I'm rebuilding a 1939 knucklhead --only one I've ever seen is Matt Olsen's Last OCtober when I surprised him and Carl while Pheasant Hunting in South Dakota.
They showed me a stepped hub, I even took a picture of it, but the picture didn't turn out very well and I couldn't remember what I was pointing to in the picture.
Stepped hubs were used in 1939 (not sure and don't really care to know when else they were used) Probably used in 1940 too until the supply ran out.
Most of you reading this are experts and know this already, but for any newbies that stumble across this post, attached are pictures of a stepped vs non-stepped hub
Enjoy,
Jim Bodnar
P.S. If I can convince my Dad to find his way to the 21st century and buy a digital camera, I'll post pictures of his amazing progress with this bike. I owned it for 10 years and never made a lick of progress. I delivered it to him in late March and we almost have a very nice and complete rolling chassis-- actually I shoudl say it is almost done except final paint and the motor. I still don't know what to do about the motor--matching 39 cases but everything else is mid-40s FL. Probably rebuild what I've got--with junk parts costing what they do these days, who could afford to build a small port motor from scratch? not me
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