Original Harley-Davidson Knucklehead

by Greg Field

Harley-Davidson stunned the world when it unveiled its EL 61, better known as the Knucklehead, on November 25, 1935. The overhead-valve technology was impressive at a time when sidevalve engines were... This description may be from another edition of this product.

• Format: Hardcover
• Language: English
• ISBN: 0760310610
• ISBN13: 9780760310618
• Release Date: January 2004
• Publisher: Motorbooks International
• Length: 128 Pages
• Weight: 2.25 lbs.
• Dimensions: 0.7" x 9.1" x 12.0"