Hello vitalbmx community. Recently I bought a pair of Primo V Monster 2.40 tyres. I just loved them, good grip and very smooth landing. But there was a problem with the tire clearance because its sunday funday frame 2013, so after some days when my rim wasnt completely true it started hitting the frame. So I had to exchange my back V monster and I exchanged it with bsd donnasqueak 2.25. So now i run on 2.40 front and 2.25 back. Is it bad? Also landing isnt so smooth as it was. Can I do something about it? If I put more air in the back tire will it make it smoother ?