Indian Four

1931


  • Soon after the death of William Henderson in 1923, Indian expanded its product line with the purchase of the assets of the Ace Motorcycle Company
  • The Indian/Ace Four came to market in 1928 in the same configuration it had under William Henderson
  • Indian also increased the engine main bearings from the Ace’s three to the five and re-designed the pistons and cylinder heads for better performance
  • This gave Indian a sophisticated sport-touring machine and rounded out its product offering
  • By 1931, Indian replaced the Ace frame with the Indian double-downtube frame, upgraded the front brake, replaced the rear frame section with one patterned after the 101 Scout, increased the wheelbase by 1.5 inches, and redesigned the fuel tank, all adding 60 pounds
  • A truly stunning example of an early Indian/Ace Four