Going to replace my rim . My front tires still in good shape, so can I remove the tire from the rim replace the rim then use the same tire to put back on the wheel.
Why not , as long as the new rim is the same size and width , I don't see a problem . You may have to get it balanced , every rim will have a different weight placement , but it won't be much . Make sure you mount the tire in the correct direction , and if you need a new valve stem . now's the time to do it .
My front wheel had a small crack and air leak about 2,000 miles after I put a new Commander II on it. No way I was going to just throw away a brand new tire. I took my new wheel and the old wheel/tire to an independent shop I use and they swapped the tire over.