It is primarily three models with which Puch's vast customer base lined up at the start of races. They were all equipped with a solid frame made of stamped sheet metal and central tubular cradle, and their principal characteristics can be summarized as follows:
250cc, two stroke engine, single cylinder with twin pistons, bore 2 x 45mm and stroke 78mm, with a total engine capacity of 248.1cc.
Compression ratio 1:6,2, power 18.5 hp at 5.800 rpm
Puch P32/1 carburetor, four speed gearbox.
175cc, two stroke engine, single cylinder with twin pistons, bore 2 x 42mm and stroke 62mm, with a total engine capacity of 172cc.
Compression ratio 1:6,2, power 10 hp at 4.500 rpm
Fischer Amal 24 E 1 C carburetor, four speed gearbox.
125cc, two stroke engine, single cylinder with twin pistons, bore 2 x 38mm and stroke 55mm, with a total engine capacity of 124.75cc.
Compression ratio 1:6,5, power 6,5 hp at 4800 rpm
Three speed gearbox.

The engines with the cylinder sharing a common combustion chamber proved to be competitive and showed winning form, Puch continued to use them during the 1950s.
Starting from the first models using a semi-rigid frame and modest mechanical shock absorbing springs, the motorcycles developed rapidly and already in 1953 a vibrating rear swing arm was introduced; at the same time the first totally tubular frames were introduced still with a central single cradle, which better suited the double exhaust. The engines also underwent regular improvements and were constantly up-graded.
1951 – The three Puch 250TFS definitely made an impact when they finished in the first three positions at the already well known Parisian endurance race, named the 24 hour Bol D'Or; the same happened at the Alpenfahrt, where Puch, represented in three different divisions with the 125SL, the 150TL and the 250TFS won six gold, nine silver and ten bronze medals. During the same race Johann Krammer came first in the 125cc class. A few months later at the Italian Six Days at Varese, he fought mightily until the last moments of the race for the trophy, which went to England with very few penalties less. Yet Puch won an important victory on this occasion in that it came first amongst the motorcycle manufacturing teams. Puch's ace racers of that era were: Franz Knapp, Johann Weingartmann, Johann Krammer, Puroy, Bilek, Edi and Michael Platzer.