I have a 2017 big dog flip up. It has 9" no flat tires on flex forks. I hate these tires with a passion!! Hard to keep a straight line and am always getting caught on sidewalk/driveway edges, and if ground is slightly soft, they sink and rut the crap out of the lawn. I've noticed the newer flip up models have 11" pneumatics on them. Am I to assume I can upgrade my flex forks and wheels/tires to 11"? This would make a huge difference, IMO. I understand I'll need to re-level the deck, but a very small price to pay, considering. Thanks in advance for any help!