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1928 Harley Davidson JD Twin Cam - Knapp Estate


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Buy it Now Price: SOLD Price Range: $35,250 to $38,750 Inquire About this Motorcycle


This 1928 Harley Davidson JD was Homer Knapp’s desert sled. It is a twin cam assembly with lots of race history including finishes at the Catalina Island original races and again in the 50 year anniversary race in 2012. This 1928 Harley JD Twin Cam was last run in Catalina and it was put away wet.  This bike was removed frokm homer's place just after his passing and the guardian cleaned the bike ): The motorcycle is now in private storage waiting for it s next curator. It is know to be a fire breathing kick ass machine!

This motorcycle has a California title in the name of the estate. It comes with a full story board that Homer Knapp used when the bike was on display. A California registration form in Homer’s name was found from 1954 that will go with the bike.

This 1928 Harley JD Twin Cam is a historical machine and well documented.




Believed to be an original paint survivor.

Sheet Metal

Sheet metal is mostly original with good patina. Survivor metal has dings and dents.


No chrome.


This is a running machine in need of a new tuner. Homer was a genius at tuning and setting up rides so it is expected to be ready to go with minimal maintenance. The bike would require typical maintenance to have it ready for the next event.

Wheels & Tires

18-inch rims with painted spokes. Tires remain from the CATALINA 50 year anniversary motocross event and are Dunlop Sports basically new.


Clean, California Title
Engine # 28 JD 1641
Frame # none
Belly# non match


This motorcycle is not rated on the NADA scale.


Full story board from when this bike was on display. A California registration form from 1954 in Homer's name.

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