USAmade OVAL Sharktooth PRO BB30/GXP Mountain chainring, Black Anodized Finish with Teflon treatment, 4-Bolt, Alternating "Thick-Thin" tooth profile for chain retention- the latest technology, Sharktooth Anti-chain drop profile for excellent chain retention. These rings are designed to be compatible with 8, 9, 10 and 11 speed or single-speed drivetrains. - Made in the U.S.A. ADVANTAGES OF OUR OVAL CHAINRINGS: Our Oval chainrings maximize rider efficiency by leveraging your pedal stroke where your power is produced and reducing resistance where your power is least. Oval rings improve tire traction on technical climbs or loose terrain. They offer a consistent power delivery that allows you to maintain an even cadence and a higher output level for longer periods of time. Oval rings allow you to climb easier and faster with less fatigue. Higher average speeds have also been achieved in various studies. Oval rings provide a smoother feel on your legs during climbing The power output attained during intermittent maximal sprints in one study was 2.4% - 6.7% greater with non-circular (Oval) chainrings.
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