There are two types of mounts: one that attaches to the stem top cap and another that uses rubber bands. I will be attaching an iGPSport cycle computer and an Adept stem top cap. The cycle computer's body has come apart in two pieces, but it works perfectly fine. I don't know how to reset it, so the data remains. It's GPS-enabled, so I think it's easy to use just the main unit. It's a bit old, but it still works. I've marked it as having some scratches and dirt, but there are no noticeable scratches. iGPSPORT cycle computer main unit with a digital LCD that displays speed, distance, and temperature. - Brand: iGPSPORT - Model: Cycle Computer Main Unit - Accessories: Mount, O-rings - Functions: Speed, Distance, Time, Temperature, Calorie Display - Display: Digital LCD - Mileage: 4088 KM - Date Display: 25/09/25 Thank you for viewing.