CKR12-SR15,40/26-170HBK.ZJS.JS.2PCS. 9-12s
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CKR12-SR15,40/26-170HBK.ZJS.JS.2PCS. 9-12s

$199.00
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Chainring: Constructed from high-strength aerospace-grade aluminum alloy, providing excellent durability and optimal performance for intense riding. Crank Arms: Made from high-strength aluminum alloy, combining strength and lightweight for a reliable cycling experience. Bottom Bracket: Built from chromium-molybdenum (Cr-Mo) alloy steel, offering superior strength and wear resistance for lasting performance. Chainring: Secured to the crank arm spider using screws and nuts, ensuring a firm, reliable attachment. Bottom Bracket and Crankset: The hollow bottom bracket is interference-fitted with the right crank arm for a secure, press-fit connection. The left crank arm is then clamped tightly to complete the assembly, ensuring stability and balance during rides. Chainring: Made through stamping, heat treatment, and CNC machining, followed by a sand-blasted anodized finish. This process ensures high precision, strength, and a refined surface. Crank Arms: Precision-forged, heat-treated, and C

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