Shimano 9 speed drivetrain a shimano 9 speed drivetrain is what powers the silhouette up the rough lanes or tracks making it that little bit easier for you to get to your destination the reliable and trusty shimano indexing should keep your confidence up and never let you down with a shimano acera compact chainset to assist the drivetrain you shall not only be able to power up the hills will ease but descend at a fast pace tektro disc brakes tektro cable operated disc brakes with 1