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Item for Sale
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Osymetric ERGO Aerosymetric BCD110mm 4 Bolts 54T Aero Outer Bicycle Chainring |
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Description
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Scientifically proven technology that enables athletes to ride harder, longer and faster with less fatigue. By increasing the size of the gear when you push the hardest (downward stroke) and then decreasing the size of the gear to get through top and bottom dead zones quickly. This patented curve enables the force on the pedals to be constantly proportional to the muscular force of the rider. The chain rings varying diameter alters the effective gear ratio though out the pedal stroke, producing a higher gear on the downstroke when the rider has more power and then reducing the gear on the upstroke. The ovalization factor is extreme, a 54 tooth ring equates to pushing a 56 tooth ring on the down stroke and a mere 50 tooth at the “dead spot” this translates to up to a 10% increase in power output which can result in up to a 3% increase in speed!
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Specifications
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Benefits:
Features:
Net Weight:184g
This Specifications can't compatible with FC-R9100 /
FC-R8000 version. |
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About Us
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Thousands of sport products were sold to customers around the world. Over 99% of positive feedbacks. We are improving inventory level and shipping speed which are the primary reasons that we cannot hit 100% positive. We sell only real and authentic products. Sometimes, our item price is low because of stock clearance. Be confident. No fake product from Cyclingvelo!!
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Payment Method
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We accept paypal only. Paypal provides premium protection to buyers.
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Shipping Method
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We ship items via air parcel service with tracking numbers. Shipping time is depends on your location. Normally, economic shipping method takes 11-35 working days. In some cases, it will be longer if customs need to check your parcel. If you need faster shipping method, please leave us a message. We will quote for faster shipping methold. Please contact us if you have problem.
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Taxation
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Some countries might require import tax. It is customer’s responsibility to pay the import tax. If you need a special invoice for declaration, please let us know.
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Resolving problems
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If your item hasn't arrived yet, check the estimated delivery date on the Order details page to determine when your item should arrive. Then track your package. If the estimated delivery date has passed and the item didn't arrive, please check with your local customs, mail office, mail box or your neighbor firstly. Sometimes, you parcel is delivered to family member but they forget to tell you. If the item doesn't match the listing description, just let us know. We are happy to resolve problem with customers.
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Working days
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Monday to Friday 9am to 5pm GMT+8. |
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Holidays
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Please understand that public holidays in Asia is different from other countries. If you found that we are not response promptly, please check out whether we are enjoying holidays.
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