This is a must have if you are changing to adjustable pushrods. I helped a friend who didn't purchase these and there is very little room to work when adjusting the pushrods. With the Colony Quick Install Lower Pushrod Tube kit there is enough room to get two hands in to make the adjustments. I was able to adjust two pushrods in about 10 minutes. It took at least 45 minutes per pushrod on my friend's bike.