ICS aluminium cylinder head (oversized)

ICS oversize cylinder head (NBU) for gearbox ver. II with gold color for standard type nozzle (not NBU).
The heads have been designed with double rubber seals to minimize loss of compression from the cylinder. The special ‘trumpet design’ ensures optimal delivery of air to the barrel/BB. Furthermore, the cylinder heads have a powerful built-in rubber band that absorbs the shock from the piston head.

Only for ICS oversize cylinder.