End pieces and rails are covered with strong black pvc. Soloist model has graduated bars from 50 mm till 38 mm, E3-F6. Motor: 40-140 rpm Range: 3.1 oct. E3-F6 Bars: Aluminum 50-38 mm Pitch A: 442 Hz. Frame: Voyager Frame Length: 156 cm Low end: 75 cm High end: 40 cm Height adjustment: 85-105 cm Also available with the Endurance Field Frame.