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• one hundred pc Brand New and High Quality! Type: Single Speed Conversion Kit Specification: 12T 13T 14T Size: 55(2)/ 56(2)/ 61(2) Material: aluminum alloy + stainless-steel Color: black/ red/ gold/ silver Delivery details: 1 flywheel + five tower base gaskets + flywheel hide Processing technology: CNC cutting / anode coloring Features: 1 flywheel is made of high-resistant stainless steel, whose strength and hardness are two times that of ordinary 316 stainless steel, and the hardness reaches 18 levels 2 screws are fabricated from stainless steel, anti-corrosion and anti-rust, suitable for long-term outside using three compression piece and gasket are fabricated from 6061 aluminum alloy, which is ultra-light and corrosion-resistant, protecting power and reducing weight Package Include: 1x Single Speed Conversion Kit Notes: The product may have an error of 1-2cm(0),and the colour may well look just a little diversified from the picture,pls understand

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