The result of the motorbike stage improvement became a new model К-750 of 1958, a proprietary Kiev design, which was not a copy of the motorcycles Ural, received by virtue of an individual makeover of the М-72, accomplished in Irbit. In consequence two independent manufacturers of heavy bikes of the same class came to hand. To abate the competitiveness, the planning authorities tried to distribute and sell Kiev cycles in the European part of the country and Irbit bikes beyond the Urals.

In 1963 a modified К-750М appeared. An ignition governor and a paper element in the air filter were implemented in the part of the vehicles. Instead of the gear box of М-72 type an upgraded one was installed, also affront fork was changed: it featured a hydraulic shock absorber of double acting and an increased wheel motionо.

The motorcycles К-750М were employed in the Honorary Cortege from 1967 till 1973.