The Mz 125 is a interesting engine it was updated a few times I remember a few years ago it had a new valve system developed and was placed in a Blata 125 bike under the Mz name. speak for yourself when I had a 125 in 2011 it was a Yamaha engine with a Keihin carb when the air restriction and ECU restriction taken out it produced 20bhp and when I big bored it the power was up to 26bhp.

Mz filed for bankruptcy a few years ago the market in Europe wasn't ready for the electric scooters they were producing and the development costs they were undertaken ultimately killed the company yet again Ideally if it was taken under BMW as a cheaper marque it could do well.