Totale length: 650 mm

Width (tank side): 160 mm (inner diameter)

Width (start bump): 220 mm (inner diameter)
Width (end): 140 mm (inner diameter) 

Bump height: 140 mm

Bump length: 350 mm

Seat panel length: 330 mm
The seats is lifting about 35mm at the end and the hole is approx 195mm x 105mm