The 34mm bore 2-bolt cylinder. (fits any 2-bolt Zenoah/CY RC cases).
Race Porting offered, HT, (an EFRA favorite).
Championship Porting offered, HT, (an EFRA favorite).
2mm stroked kit available with the head modifications, (a 27.2cc).
Reed Case porting offered, single boost port.
HP; 5.50 to 6.25
(Race ported G260 top end kit, for a stock stroke crank, 5.5 HP)