39.50mm - standard piston naked, new
Without locking pins for the piston rings.
Suitable for the VeloS-models from 1956 onwards:
1400, 1700, 2200, 3300, 3800, the VeloS-models Impex S 3800 and Roland Garros (Hungary - from year 1993 to 2004) with plastic handles, 4600 (export USA), 5000 - also Dutch, Flash, 6000, Dutch VeloS-oto/ami, Micron and the model Black'n Roll S4800.
Matching piston rings no 60817.
The VeloS-models built before 1956 have a nose piston.
NOTE:
Suitable for the cast zylinder.
Not an original. Reproduction.
