SRAM TT500 Aluminum Time Trial Levers.Aluminum lever blades with return springsFit into handlebars with ID greater than 19mmWorks with caliper or cantilever brakesInternal cable routingItem Specifications- LeftWeight116gBrake Lever ActuationShort PullBrake Lever UseLeftBar ID19mmCableRoadItem Specifications- RightBrake Lever ActuationShort PullBrake Lever UseRightBar ID19mmCableRoad