Thor Model U was a motorcycle that debuted in the 1910s with a 7 hp V-twin in the Thor marque of Aurora Automatic Machinery Company of Illinois.[1] The 1913 model came with a 61 ci (cubic inch) V-twin engine, with the V at an angle of 50 degrees.[2] In 1914 the engine size was increased from 61ci to 76.25ci[2] The motorcycle had chain drive with clutch and was overall a bicycle configuration with two handle bars and seat above a frame which housed the engine and connected the front and back.[3] The V-twin has an angle of 50 degrees.[4] By 1916, the Model U was essentially the "flagship" of the Thor lineup with a large 50 degree V-twin with mechanical valves, a magneto ignition, and a three speed transmission.[5] These kind of features were improvements over typically features of the day like a single-cylinder engine, battery start, and two speed or even single speed;they were much closer to their bicycle origins they had just birthed from in the previous decade.
The motorcycle was fast for its day setting some records and also competing in the Dodge City 300 according to Bonhams.[2] The Model U was preceded by the Model O, which had a different engine design.[2]
Aurora Automatic Machinery Company was based out of Aurora, Illinois, USA that produced the Thor motorcycles in the early 1900s.[6] The Model U shared parts with Model W, which had single cylinder.[7]
thor, model, motorcycle, that, debuted, 1910s, with, twin, thor, marque, aurora, automatic, machinery, company, illinois, 1913, model, came, with, cubic, inch, twin, engine, with, angle, degrees, 1914, engine, size, increased, from, 61ci, 25ci, motorcycle, cha. Thor Model U was a motorcycle that debuted in the 1910s with a 7 hp V twin in the Thor marque of Aurora Automatic Machinery Company of Illinois 1 The 1913 model came with a 61 ci cubic inch V twin engine with the V at an angle of 50 degrees 2 In 1914 the engine size was increased from 61ci to 76 25ci 2 The motorcycle had chain drive with clutch and was overall a bicycle configuration with two handle bars and seat above a frame which housed the engine and connected the front and back 3 The V twin has an angle of 50 degrees 4 By 1916 the Model U was essentially the flagship of the Thor lineup with a large 50 degree V twin with mechanical valves a magneto ignition and a three speed transmission 5 These kind of features were improvements over typically features of the day like a single cylinder engine battery start and two speed or even single speed they were much closer to their bicycle origins they had just birthed from in the previous decade The motorcycle was fast for its day setting some records and also competing in the Dodge City 300 according to Bonhams 2 The Model U was preceded by the Model O which had a different engine design 2 Aurora Automatic Machinery Company was based out of Aurora Illinois USA that produced the Thor motorcycles in the early 1900s 6 The Model U shared parts with Model W which had single cylinder 7 References Edit 1912 Thor Model U Twin a b c d Bonhams 913 Thor 61ci Model U Twin 1912 Thor Model U Twin 1913 Other Makes Thor Model U Ormond Beach Florida 1916 Thor Model U 1913 Thor Motorcycle 9 28 2011 11 23 07 AM by Christian Williams 1912 Thor Model U TwinExternal links EditWednesday April 13 2011 1913 THOR BOARD TRACKER UNEARTHED Yesterday s Antique Motorcycles Thor 1916 1000cc 7hp 2 cyl ioeSee also EditSears Dreadnought Harley Davidson Model 7D Harley Davidson Model W Pope Model L Cyclecars Retrieved from https en wikipedia org w index php title Thor Model U amp oldid 1011044242, wikipedia, wiki, book, books, library,
