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배송 정보
제조사에 재고가 있으면, 배송 예정일 26th Jun. 2026
아래 상품 설명은 Google에서 자동으로 번역되었습니다.
상품 상세
[New Standard Bore-up Kit]
[Specification]
Engine Displacement: 108cc
Bore Diameter: Φ52
Stroke: 51.0mm (Long Stroke)
Aluminum Cylinder
Built-in Valve
Piston: Casting
*
*The product on the photo is with a camshaft.
*To improve power and torque, you can increase the maximum speed by increasing the front sprocket by 1 to 2T, by reducing the rear sprocket by 3 to 5T, and by making the gear ratio long.The reduction ratio varies depending on preferences, usage conditions, installation of clutches with different primary reduction ratio, etc.
*The Bore-up KIT varies depending on the office of the district, but if it meets the conditions such as remodeling application and compliance driving, it is possible driving on public roads. Please be sure to obtain a license for a motorcycle license less than a mini limitation, and receive delivery of two types license plates.
*108cc bore up KIT has been designed for use in the competition. Therefore, the maintenance cycle becomes short.
Note about assembly
*Please check that the clearance between the cylinder sleeve and the through the hole on the crankcase side is 0.5mm or more when mounting the cylinder.The cylinder sleeve may interfere less than 0.5mm or less depending on the manufacturing error of the crankcase. In that case, please sharpen the through hole of the crankcase to ensure a clearance of 0.5mm or more.
*The thickness of the piston ring of the old product and the current product differs. The current product is 0.8-0.8-1.5, the old product 's 85/88 cc is 1.0-1.0-2.0, and the old product 104-108cc is 1.0-2.0 (2 rings). Please check on the size if you need a piston ring with repair before purchasing.
Notes on repair of the cylinder head gasket
*Bore up KIT of 85/88/104 / 108cc carried out model change of cylinder and head gasket in 2003-2004.
Please note that the head gasket differs depending on the type of cylinder. Old Cylinder Paper Head Gasket Specification: Cylinder Length: 62.6mm, current type cylinder stainless steel head gasket specification: cylinder length: 63.4mm.
*The valve and the piston interfere with each other, causing serious damage when assembling the stainless steel head gasket to the old cylinder.
*The camshaft chain will not enter the camshaft sprocket and cannot be assembled when assembling a paper head gasket to a new type (current) cylinder..
Increased power and torque throughout the entire range. Reliable Standard Spec..
Cylinder head with optimized combustion chamber shape is included.. High efficiency port shape, Big valve, High Camshaft(Option), High Compi Piston for each Engine Displacement Volume, etc.. The power and torque in the entire range is unmatched by NORMAL..
Hemispherical, CROSS flow type combustion chamber shape. Compared to the previous model, the shape of the combustion chamber has been reviewed and the combustion efficiency has been optimized by using a special combustion chamber for φ52..
Large and filleted ports to increase flow velocity for bores up. The intake port has a high port shape to increase the filling efficiency of the combustion chamber..
Camshaft with Bearing (selectable by MODEL), which can also be used for Normal cylinder head of 12V cars, realizes sharp extension at high RPM range..
Large diameter ValveFace and Stem diameter φ5.5 for improved intake and exhaust efficiency and high durability..
주의사항
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