This bike was made by a motorcycle engines lovers, the Batllo family, and they came to run in the 24 Hours of Montjuic in 1972 and 73, the Byra 1000.
This bike was created from two Yankee OSSA 500 engines, tucked into the chassis itself Yankee, together with a clever piece that connected the two crankshafts, the two outer cylinders were rising while the two interior down, ie drafts at 180, 28 had four carburetors, providing about 84 hp and 20 Litor spent 100 Km to a weight that was less than 180 kg .Fernando Batllo thought they could easily reach the 115 hp
Fernando Batllo and four children, Jesus, Javier, Fernando and Luis were the creators of this unique bike, with Javier and Jesus ran the 24 Hours in 72.
