Dollar - CT, CT3, CTC
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Dollar D2-492-51-18
Photo ou archives : F-M. Dumas

Capacity : 175
Model : CT, CT3, CTC
Production : 1927 -
Category : (R) Street Bike


175cc CT3 Sport - 1927

When the Dollar made sense

This active little factory based near Paris began production in 1925 and specialized in four-stroke machines. They had a range of 125, 175 and 350cc models – all with overhead-valves – in an exceptional line-up for the period.

Choice of Tires

The 125 and 175 were initially offered with a separate two-speed, chain-driven gearbox and belt final drive. Then in 1927, the Sport model received chain final drive in conjunction with a three-speed gearbox with a tank-side shift lever. Following a popular trend, each model was offered with the choice of standard tires or large-section balloon comfort tires.

Expensive Sports Model

Launched in 1927, the 175 CT3 Sport had a fuel consumption of 100 mpg. Priced at $830, this four-stroke cost more than most two-strokes of the same displacement. The Peugeot 175 cost $690, and the single-speed Motobécane was only $285, but the Dollar offered performance equal to a 250 two-stroke. Dollar's policy of mass-market sales led to a lowering of its price, and these shiny little Dollars enjoyed great success and made a contribution to the growth of the marque. Another indispensable feature was Dollar's sports record: Ridden by Clech, Lascombe and Druz, the 125, 175 and 250 Dollars achieved many competition successes, including in 1932, four world records in the 125 category. The most impressive was a flying kilometre covered at 65.5 mph. However, during 1927, Dollar abandoned the small-capacity four-strokes. They offered only a 175cc two-stroke, in addition to new 350 and 500 models with unit-construction Chaise engines.


Engine: 175cc (60x61mm) air-cooled single-cylinder four-stroke

Valves: overhead

Fuel System: carburetor

Transmission: separate chain-driven Staub 3-speed; chain final drive

Suspension: girder forks (front); rigid (rear)

Brakes: drum (front & rear)

Wheels: 650x50mm or 675x75mm wire clincher (front & rear)

Maximum Speed: 53 mph

The Dollar 175 CT3 Sport was an affordable lightweight four-stroke, though it was still far more expensive than contemporary two-stroke models.

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)
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François-Marie Dumas

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