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Author Topic: Royal Enfield's First OHC Prototype - 1962 Royal Enfield 173cc  (Read 1569 times)


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Royal Enfield's First OHC Prototype - 1962 Royal Enfield 173cc
« on: September 26, 2017, 03:59:34 PM »
If you notice carefully, one can only connect the dots looking behind on to history but not into the future. Similarly, ROYAL ENFIELD, who is back to developing an all-new overhead camshaft engines in their future models replacing their traditional pushrod engines, back in time dwindled into the overhead camshaft configuration in 1961. Developed only as a prototype by then chief engineer, Reg Thomas, the idea of a lightweight motorcycle was conceived in 1961 and the first prototype was completed in 1962. The very motorcycle you see in pictures here and only one of its kind right now in the world! This one-of-a-kind classic is going up on sale at the BONHAM’S AUTUMN STAFFORD SALE.

While the engine head, even though now utilising a single overhead camshaft setup, was made to look similar to the then popular Royal Enfield Crusader’s engine but lower down the engine had a different form with aluminium castings stretched along the centreline and aping the design seen on the Aermacchi Chimera motorcycles. Powered by a 173.5cc single cylinder engine, the OHC prototype was being developed by Royal Enfield to bring an affordable commuter option to the then-struggling European motorcycle industry as well as abide by Britain’s 200cc engine cap which entailed lesser insurance fees.
« Last Edit: November 28, 2017, 01:10:19 PM by Mohsin Hasan »