There,s a few things that irritate me about Rockets and one of them is the inability to check the coolant level through the OEM tank...Now like most 3,s mine does,nt lose or use coolant but on a long road trip i like to check all levels each day easily before hitting the road. My bike is off the road now till spring so time for a few bits that need doing including ive fitted a catch tank with a nice clear sight tube which will make life a lot easier during the summer riding and enable fast checks..