Dale's Wheels Through Time - Pre-war Knuck - By 1939, Harley-Davidson was in its fourth year of producing the powerful 61c.i. OHV Model EL - the "Knucklehead". Dale built this machine from
1939 Harley-Davidson EL Knucklehead | Gooding & Company
1939 Harley-Davidson Sixty-One EL Knucklehead | Gooding & Company