Reply To: Engine swap with 650/250 Jan 19, 2022 at 5:46 PM #6827 ♠️ M77👑 Admin Topics: 40Replies: 3,033Country: UKBike Model: GT Sadly no and no one is going to genuinely advise putting a 650 inside the 125/250 chassis , it will destroy the frame. We need you alive sir 🙂