So I recently got my xb9 and am loving it. The tires have plenty of tread but due to the bike not being ridden very often and just sitting while with the previous owner there are some very small cracks in the front tire grooves. Like I said there is a ton of tread probably close to 85-90% but those cracks scare me. Should i just replace the tires? I was hoping to at least get to winter with these and change them out if needed then.