The x lite isozone vr sf 318mm road handlebars from bontrager are made from a oclv carbon fibre construction with a variable radius shallow flare vr sf design that creates more accessible hand positions the isozone pads displace vibration by 20 to reduce hand numbness it features a cable routing groove for shift and brake cable routing front and rear to keep everything neat and tidy along with laser etched brake lever position lines for repeatable spot on control setup every time availa