Dale's Wheels Through Time - The '36 Knucklehead - The 1936 Harley-Davidson Knucklehead is considered to be the grandfather of the modern motorcycle. Harley-Davidsons new OHV 61c.i. engine and dry-sump circulation oil
1936 Harley Davidson EL Knucklehead motorcycle Stock Photo - Alamy
1936 Harley-Davidson VLH Big Twin Flathead at Las Vegas Motorcycles 2022 as T39 - Mecum Auctions