I dont own one but from what I could find you have options
Pulling Capacity: 4000 kg/8800 lbs.
Weight: 250 kg/ 550 lbs.
HP requirement: 40 hp/30 kw
PTO RPM: 540 RPM
Drum capacity: 8 mm: 90m/300ft, 9 mm: 75m/250ft, 10 mm: 60m/200ft
Cable Speed @ 540 RPM 2-5 ft/sec
Upper Pulley: 160 mm/6.5 inches
Lower Pulley: 160 mm/6.5 inches
Log towing bar: Std.
Hill support Plate: Std.