Integral cylinder head, compact engine structure, low noise;

Small cylinder diameter and large stroke structure, strong engine climbing performance;

Lightweight piston and piston ring design, reducing reciprocating inertia force of the piston, more conducive to power output;

The use of reduced pressure valve camshaft makes foot starting more convenient;

The integrated full water cooling system has good engine heat dissipation, low overall temperature, higher durability and reliability, and very stable power output.