I recently purchased a Specialized Roll Elite which has the Nimbus Sport 650b 2.3" 60TBI tires on it. PSI says 25-50 but at 40 - 45 I still feel like if I am compressing the tires a bit much while sitting on it. I currently weigh 288 lbs is it okay to run at max tire pressure of 50 PSI at my weight? The tires I don't think are at risk of pinch but I feel like I'm forced to ride a bit less aggressive.