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Specially designed to improve chainring stiffness over standard 4mm chainrings. The reinforced 5/6mm chainrings can reduce the risk of chain injury due to bending or bending when changing gears. Oval design to increase pedaling performance Available in MTB: 38 / 24T, 42 / 27T, ROAD: 53 / 39T, 50 / 34T Material: AL7075.
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