Big Bore Cylinder Kit Φ105.5 mm

Bore Diameter (mm)：105.50

Mounting Instruction Raptor Cylinder Kitはこちら

※The cylinder head and base gaskets contained in the kit are specifically developed for Athena cylinders kits. Whenever the cylinder kit is disassembled，replace the gaskets with the specific Athena spare gasket kit：DO NOT use OE replacement gaskets.
※Race Use Only Product - Not intended for street use.
※All Athena products must be used in compliance with the specific national regulations of the member state where it is being marketed or sold. Athena declines all responsibility for any improper use.
※取扱説明書が付属する場合は外国語となります。
※輸入商材の為、納期が遅れる場合がございます。あらかじめご了承ください。
※メーカー都合により商品の仕様変更がある場合がございます。ご了承ください。

Athena has been constantly investing in cylinder aftermarket replacement parts for more than ten years，to improve their production and performance. All the cylinders are entirely engineered in Italy by Athena’s R＆D Department which has a strong internal know-how and cutting-edge tools to design and test each piece. They are coated with motor-nicksil，a nickel-silicon coating developed by Athena to obtain smoothness and optimal wear resistance.
Athena’s cylinder kits and its components are recognized worldwide for their performance，durability and reliability.
Athena’s Big Bore Cylinder Kits guarantees an increase in performance that can be observed along the power curve，keeping the reliability at the same level of the original components.
The kit includes the high-quality aluminum cylinder with increased bore，the complete piston with the piston pin and rings，and all the necessary gaskets.
To ensure maximum resistance and durability，the piston pin is made of a special alloy steel，used in aeronautical applications，with a nitriding treatment. The external DLC coating，that is Diamond-Like Carbon，guarantees a finish that allows this component to withstand the most extreme mechanical stresses.
All the components of the kit have been developed to withstand the highest temperatures，pressures and stresses and have been validated by Athena technicians with severe bench and road tests.
This cylinder kit can be installed without making any changes to the engine crankcase.

Bullet points
Special piston pin in steel alloys for aeronautic application with DLC (Diamond-Like Carbon) coating
Maximum durability and smoothness guaranteed by a special nickel and silicon treatment of the barrel
Cylinder made of a special light aluminum alloy

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