Introducing our GY6 Racing Crankshaft, a precision-crafted component designed to elevate your 4T engine's performance. This powerful shaft ensures smooth and efficient operation, delivering unparalleled power and durability to your CK125T models, including the 2J, 2E, 2L, 2M, and 2P variations. Its +3mm extension provides a perfect fit for upgrading your engine's compression ratio, enhancing overall performance and acceleration. Our product is meticulously engineered to replace the 13000 GFY6 C00 original part, ensuring a seamless and straightforward installation process. With its superior build quality and attention to detail, you can trust our GY6 Racing Crankshaft to deliver consistent results, leaving you with a race-ready power plant at a fraction of the cost. Experience the difference and upgrade your 4T engine with our GY6 Racing Crankshaft today!