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
By 1936, the Indian/Ace evolution continued with the introduction of the upside down four engine many considered a step in the wrong direction
Many considered the engine industrial looking, and it required a heat shield over the exhaust to prevent rider leg burns
The nickname was derived from the new valve arrangement where the exhaust valves were now on top of the motor (for improved cooling) and the intake valves were located on the side (for improved combustion)
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
By 1936, the Indian/Ace evolution continued with the introduction of the upside down four engine many considered a step in the wrong direction
Many considered the engine industrial looking, and it required a heat shield over the exhaust to prevent rider leg burns
The nickname was derived from the new valve arrangement where the exhaust valves were now on top of the motor (for improved cooling) and the intake valves were located on the side (for improved combustion)
