Put the power down with Origin-8's Alloy Crankarm Set. Made of light and durable forged aluminum and for a single chainring and square-taper bottom bracket (both sold separately), these crankarms are great for your sweet urban rig or mountain bike.
Origin-8's Pro Pulsion Single Speed Crankset is made of light and durable forged aluminum with a 46-tooth stamped-aluminum chainring. It provide excellent stiffness and power transfer.
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