Hyper S-Stage Bore Up Kit (A-Type) 2.6ps (6V Monkey/Gorilla) 88cc

The S-Stage allows for increased displacement while retaining the stock cylinder head and crankshaft.
Furthermore, the S-Stage 88cc offers two options: "Standard" for high-octane gasoline and "eco" for regular gasoline.
The conventional Standard model had a compression ratio of 11.5:1 and recommended high-octane gasoline, but with the S-Stage eco, the compression ratio has been reduced to 10.5:1, making it compatible with regular gasoline.
This helps reduce fuel costs.
The Hyper S-Stage includes the S-Stage, a carburetor kit, a high-efficiency air filter, a spark plug, and a 16T drive sprocket to change the reduction ratio in conjunction with the power increase.
Displacement: 88cc
Cylinder: φ52H Cylinder (Aluminum cylinder with iron sleeve)
Included Carburetor: DENI18
Included Camshaft: No decompression
Compatible Vehicles:
: 6V Monkey/Gorilla (Z50J-1300017～1510400)
*Vehicles with frame No. Z50J-1000001~1195595 are not compatible due to the location of the fuel cock, which prevents carburetor installation.
*The image is for illustration purposes only. The design and specifications of the products shown may change without prior notice. Thank you for your understanding.