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 Terrot - HSSE
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Terrot D2-492-80-08
Photo ou archives : F-M. Dumas
8008

Capacity : 350
Model : HSSE
Production : 1929 -
Category : (R) Street Bike
   

TERROT

350 HSSE - 1930

French supersport

France built some fine sports motorcycles during the 1920s, and right at the end of that decade, Terrot of Dijon launched its HSSE, one of the best 350cc supersports of its day.

Back in the Big League

One of France's most successful manufacturers before 1914, Terrot took some time to recover after WWI. The marque had only been back in the big league for four years when it launched the HSSE at the 1929 Paris Salon.

Racing Technology

Technically, the HSSE borrowed from Terrot's racing bikes – dry-sump lubrication by Pilgrim pump, a reinforced crankshaft in the finest steel available from France's leading metallurgists Aubert & Duval, an oversize connecting rod turning on a double-row roller bearing, wider teeth in the timing gear train and roller-ended cam followers. The frame passed beneath the dose-ratio gearbox, which was solidly fixed by four bolts. The rest was in keeping with the racebikes, like the sheet brass gas tank, the neatly filed brazed joints and the finest Duco enamel. Terrot had spared no expense! The HSSE had few rivals in France, certainly not with a French engine. It's more difficult to judge on an international basis, since it was little known abroad. On paper, it beat Britain's BSA Sloper, the many JAP-engined bikes and even Norton. Sunbeam and AJS were as up-to-date but more expensive. Belgium's Saroléa was well built, but lacked the Terrot 350 HSSE's dry-sump lubrication. In Germany, only NSU could match its specification, and there were few contenders from Italy.

SPECIFICATIONS

Engine: 346cc (70x90mm) air-cooled single-cylinder four-stroke

Power Rating: 15 hp @ 5000 rpm

Valves: overhead with enclosed pushrods and rockers

Fuel System: Amac carburetor

Transmission: dose-ratio Terrot 3-speed; multi-plate clutch; chain final drive

Suspension: Druid-type girder forks (front); rigid (rear)

Brakes: drum (front & rear)

Wheels: 3.50 or 4.00x19 inch (front & rear)

Weight: 254 lb

Maximum Speed: 72-75 mph according to tire size

The finest metals, the most up-to-date technical features and a high level of finish made the HSSE one of the finest French motorcycles of its day.


Motorcycle encyclopedia Moto Passion, realised by François-Marie Dumas, include almost 2000 photos presented with an exhaustive history of the motorcycles exhibited.

This unique collection has been realised with the participation of many specialists. With many thanks in particular to Yves Campion, Michael Dregni, Didier Ganneau, Jean Goyard, Helmut Krackowizer, Michel Montange, Christian Rey, Bernard Salvat, Mick Woollett, etc

One can order here

  • Original cards on paper (in french)
  • High resolution scans or original documents presented and signed with my name.

Please contact me at info@moto-collection.org for conditions and copyright.




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