N.S.U. partisans, and they are many, were furnished with a feast of interesting mechanical details, as revealed in the elaborate display made by the N. S. U. Motor Company, of 206 West 76th street, New York. We illustrate four of the 1910 models, the 2h. Roadster, 3 1/2 h. F. A. M. model, 6h. Model de Luxe, and the 7h. racer. Briefly, the principal features of these four models are as follows:
Roadster (2 h.) - Bore 2 15-32; stroke, 3 1-16. Undergeared drive, making both pulleys practically the same size, and keeping the belt out of the mud and dust. This method does away with transmission troubles, and, according to the makers, solves the problem of transmission; it is clean, needs no attention, is resilient, and yet prevents power wastage. The magneto sets on the crank-case out of the way of mud and dnst Control is from the handlebar to the carbureter, with sliding pistons allowing the flow of air and gas to be minutely regulated. Brakes are very powerful, frame low, loop type, double head, separate gasoline and oil tanks of brass, quickly detachable rear wheel and mudguard, quick action stand, pneumatic shock-absorbing spring forks, patent belt adjuster, allowing a free engine if desired; large tool kit setting in the crank case, a. o. i. v. Bosch magneto, valves very large, weight only 108 lbs., speed 5 to 35 m. p. h.
F. A. M. model (3 1/2 h.) - A combination of the three successful 1909 models, refined and improved to meet the demands of American roads. The frame is very low, of N. S. U. Keystone construction, with large metal tool box setting in accessible position, yet well out of the way; quickly detachable rear wheel and mudguard; two brakes, rim and band; efficient spring forks; Eisemann magneto, gear driven; large motor m. o. v. (3 5/32 x 3 5/32) ; mudguards very wide and long sweeping; long, graceful handlebars; long muffler pipe with efficient muffler; quick action stand; all nuts double lock-nutted and pinned, wheels 26 inch, 40 and 48 spokes; S. G. rubber V belt.
Model de Luxe (6 h.) - Bore, 3; stroke, 3 17/32. A distinctly long stroke engine, with mechanical inlet valves; forward cylinder setting forward, aluminum crank case; Bosch magneto, large, silent muffler, keystone frame, very low; large tool kit, handlebar control, hot air jacketed carbureter; spring forks; two brakes, rim and band; foot rests, patent leather mudflap and double lock-nutted and pinned nuts; wheelbase, 57 inches; wide handlebars. Extras: two-speed gear, luggage carrier.
Racer (7 h.) - This is claimed to be the fastest belt machine in the world, with its cut down frame, motor double-faced bronze bushing bearings, m. o. v., Bosch magneto, 26-inch wheels and girder forks. This machine is a strictly stock model.
The 3 h. twin roadster, already famous in this country, was always the center of a group of interested spectators. Among its high points are the mechanical valve, position of the magneto, the fine and square cooling flanges, the petcocks for priming, the neat carbureter, the undergeared pulley with patent belt adjuster, the position of the forward cylinder to allow proper cooling, aluminum crank case with magneto platform directly cast thereto, bearings of wide bronze bushings, low frame, wheels 26 inch, thickly spoked and quickly detachable wheels, stand, foot rests, two brakes, separate tanks, handlebar control, etc
In addition to these models, the N. S. U. line includes the 6 h. F. A. M., a most satisfactory speed machine; the 4 h. F. A. M., with a very fast motor; the 4 h. undergeared Model de Luxe single and twin, fore and side-cars and delivery vans. All models may be equipped, at a comparatively low extra cost, with the N. S. U. two-speed and free-engine device.