Shimano sp40 road mtb outer gear casingpre cutpreventing the ingress of corrosion causing water and dirt into your cables is vital to the longevity and performance of your gear cabling the sp40 road mtb outer gear casing from shimano not only protects the inner cable but also helps maintain smooth and efficient gearshifts while doing so featurespre greased to assist with the smooth operation of the inner wire 5mma 2 year warranty is offered with all shimano products from chain reaction cycle