Norton Commando 850 `75 as 3D large modell

The Norton Commando from the English manufacturer Norton-Villiers Ltd from Andover (Hampshire) (from 1972: Norton Villiers Triumph (NVT)) is a motorcycle with an air-cooled two-cylinder four-stroke engine.
Initially offered as the Norton Commando 750 with a 749 cm³ engine, the displacement of the Commando 850, presented in spring 1973, was increased to 828 cm³.

The patented "Isolastic" frame is unique and has nothing in common with the "feather bed" frame that Norton had previously used for many years. It is a central tubular frame with closed beams; The engine, transmission and rear swing arm are suspended in this main frame via a subframe with vibration-damping rubber elements. The framework was under the direction of the German atomic physicist Dr. Stephan Bauer has been completely redesigned by the Norton development team.

The first chassis had serious problems with frequent frame breaks on the top tube, these could be stopped by introducing an additional stiffening tube below the central tube.

In order to save production costs, the Commando frame was initially not manufactured by the long-term supplier of the Featherbed chassis, Reynolds, but the order was placed with the Italian manufacturer Verlicchi. At that time, Verlicchi also manufactured the frames for Ducati motorcycles, making it a well-known address. However, the manufacturing quality of the frames manufactured by Verlicchi was so poor that all frames supplied had to be reworked by Reynolds. According to Ken Sprayson, engineer responsible for manufacturing the featherbed chassis, Reynolds earned more from this rework than from manufacturing a featherbed frame. Ultimately, after a while, the production of the Commando frames was relocated from Verlicchi back to Reynolds.

The Commando engine was based on that of the Norton Atlas 750. In order to achieve a lower center of gravity and give the machine a more modern look, the engine was installed in the frame at an angle to the front. Since the Isolastic transmitted fewer vibrations from the engine to the frame and thus to the driver, the engines were subjected to much greater demands than in the comparatively much stronger vibrating predecessor models Norton Dominator 650 SS, Mercury or Atlas. In the early days, this led to numerous engine damage, as the crankshaft bearings were not able to withstand the high levels of stress. In addition, the centrifugal adjusters of the Lucas ignition system wore out very quickly, the timing chains elongated disproportionately and in combination these factors led to a very high load on the crankshaft bearings, because the power output of the engine changed so disadvantageously that it was only satisfactory at very high speeds Performance. The engine variant "750 Combat" with a sharper camshaft and the resulting increased stress on the timing chain particularly stood out in this regard. Norton responded by making numerous design changes to the crankcase, the crankshaft bearings and the crankshaft itself. However, these deficiencies could only be finally remedied with the 850 Mk2A and 850 MkIII model series with a stiffer crankshaft, stiffened crankcase in the area of ​​the main bearing seats and, above all, spherical roller bearings obtained from the supplier FAG (with barrel-shaped rollers) as the main crankshaft bearings that could withstand bending vibrations of the crankshaft without defects.

(Source Wikipedia)

Please note that this kit is not a toy and can only be used to a limited extent.
Please keep the items away from small children under 6 years old. It involves breaking off small parts and being swallowed. We declare the model as a puzzle or decoration

Item Description:

Material:  wood
Dimensions approx. 38 x 12 x 19 cm (LxWxH)
Weight approx: 1,20 kg
Content: 1 x lasered kit with 124  parts / assembly instructions

Supplied as a lasered kit. This must be assembled by yourself.
No tools needed. The parts must be glued.