I have an old Sun Floridian Trike and a rusted OCC Chopper so I used the rear of the Trike and joined it to the Chopper. I ordered a Coaster brake conversion but now the bike doesn't stop. I assume because the Sun sprocket is a Free Wheel, the Trike only had a front brake. I was thinking of getting a Fixed sprocket which I think will do the trick but the Trike axle is solid and not sure how to remove it so I can get the sprocket off. Anyone have an idea on how to remove a Sun axle which is probably over 20 years old? I wasn't sure if the sprocket change is the answer or if the Free Wheel can be modified to a Fixed sprocket without removing the axle.