Reply To: Bike doesn’t have power – Hyosung GT125 Jul 9, 2025 at 8:31 AM #19965 Maciek👤 Member Topics: 6Replies: 27Country: PolandBike Model: Hyosung GT125 Naked Comet In your case, the compression is too low, because according to the manual, the minimum service value is 10 kg/cm2. At what RPM did you check the pressure?