Trp hylex hydraulic disc brakesleek stylish powerful the hylex puts all of the performance benefits of hydraulics into the hands of the rider this is a full hydraulic disc brake system for drop bars it sports an integrated master cylinder in the low profile ergonomically shaped lever body this brake is for single speed aficionados features front brake is a right hand lever with 1000mm hose rear brake is a left hand lever with 1800mm hose ergonomic and perfectly sized hoods create a natur