Road Cyclocross Bicycle Bike Ospw Oversized Derailleur Pulley Syste

Kcnc Road Cyclocross Bicycle Bike Ospw Oversized Derailleur Pulley Wheel System For Shimano Dura Ace/Ultegra 6700/6800/7800/7900/7970/9000/9070 Use Membeli berati setuju dengan peraturan PO Pree Order:) Baca Spesifikasi produk di deskripsi dengan lengkap:) About This Item Why Using Oversized Pulley Wheel Cage-Upgrade Your Drivetrain For Ultimate Efficiency And Superior Performance.Kcnc Wheel Bearings Reduce Friction, Which Gives You A Lower Rolling Resistance.Upgrading Your Wheel Bearings To Oversized Pulley Will Maximize The Return You Get From Your Energy. The Efficiency Of Ospw-The Oversized Pully Wheel(Ospw) System Reduces Friction In The Pulleys By 45 % And For Your Optimised Performance.The Overall Power Savings Of The Ospw System Reach 30%-60%, Or More In Some Cases, Over A Stock Setup. Narrow Wide Pulley amp;Durable Chain Retention-The Ospw For Shimano Features A Narrow Wide Tooth Profile To Ensure Durable Chain Retention.The System Consists Of Top 14T amp; Bottom 16T Alloy Pulley Wheels Fitted With Low Friction Bearings And A Lightweight Cage Made From 7075 Alloy.Coated Bearings Prolong The Lifetime Even Further.The Oversized Pulley Wheels Have 3-5 Times Longer Lifetime Than The Commonly Used Standard Pulleys On The Market. Compatibility-The Ospw System Is Compatible With Shimano Ultegra 6800/Dura Ace 9000.The Oversized Pulley Wheels System Ha