4iiii dura ace 9100 precision pro dual ride ready includes new crankset Chainrings:50x34 better sealing against contamination and

better sealing against contamination and forward and backward compatibility

aero fit with toughness right where you need it

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Our Titanium Pulley Wheels for Shimano 9+10s are available with CeramicSpeed Coated Bearings that add an extra layer to the performance of the product and offer even longer lifetime and lower friction

Does InfoCrank make you go faster

4iiii dura ace 9100 precision pro dual ride ready includes new crankset Chainrings:50x34 better sealing against contamination andFree Delivery in 3 4 business days (Ireland, Northern Ireland) Delivery in 5 7 business days (Europe) Finance available at checkout with humm by flexifi. Product Details Elevate your cycling with the 4iiii Dura Ace 9100 Precision Pro Dual Sided Power Meter and benefit from exceptional data accuracy of + 1% error margin. Preinstalled on a Shimano Dura Ace crankset, the lightweight unit offers ANT+ and Bluetooth compatibility, as well as a breakdown of