*Rotate the wheel to check brake clearance. If it slows too soon then some thing is rubbing. A regular, periodic rubbing when the wheel is spun indicates that the wheel is out of true and needs to be trued. (See: [[Bicycles/Maintenance_and_Repair/Wheels_and_Tires/Truing_a_bicycle_wheel|Truing a bicycle wheel]].). Sometimes the blocks just need moved out minutely.