Kaptein Motor cycles
D45

This 125cc cycle motor engine.was produced from 1948 till 1952.
It had a 4-stroke side valve engine. It was derived from the Motobécane D45 type A.
Z2C

This 175cc cycle motor was produced from 1948 till 1952.
It was a 4-stroke head valve type engine. It was derived from the Motobécane Z2C.
Your webmaster is restoring one.
Kaptein 100cc

Proto type: 2 stroke 100 cc with Huffman fork and rear plunger suspension.
Nice design derived from a Poney, but nevertheless no production release.
This model was shown at the 53rd Jaarbeurs in Utrecht in september 1949, but obviously there was little interest by the public.
From 1948 until 1952 there were just 800 motor cycles produced; the majority was of type Z2C.
(source: Mr. Ben Kaptein)