The bontrager pro isocore vr cf road handlebar a chain rattling road is no longer an issue thanks our innovative isocore technology in this pro isocore vr cf road bar an additive to the carbon lay up isocore mutes 20 more vibrations than other carbon bars once you experience the comfort and control of isocore you39ll never want to ride another bar bontrager pro isocore vr cf road handlebar features oclv carbon with isocore continuous inner laminar technology replac