Product Description The RT33 is Vetta's baseline unit intended for recreational riders, whether road, cross or mountain. In addition to Speed, Trip Distance and Cumulative Odometer readings, the RT33 includes a 12/24 hour clock, the convenience of an Auto Start & Stop function and Vetta's exclusive Service Timerï. Current Speed; Cummulative Odometer; Trip Odometer; 12/24 Hour Clock; Service Timer; Dual Display; Auto Start/Stop.