Hey CRUISER, depending on weight. If you and your wife together are under 300 lbs. It should get up to 24 to 27 MPH. When 1 person rides, it goes around 30 MPH. This is using a Robin/Subaru 33.5 cc friction drive kit. If combined weight is over 300 lbs, It will still ride good, but if that was the case, a tubeless rear tire would make since to try?