How to Tell That You Need to Replace a Single Speed Freewheel

Many bicyclists go for the old and simple ways. Among the more simple of bicycles are single speeds set up with a freewheel. The freewheel allows the rear wheel to glide and move even when the pedals are not engaged. Do not confuse a freewheel with a fixed gear. Fixed gears require the rider to pedal at all times to keep the wheel moving. Like all parts on a bicycle, the freewheel eventually wears out, requiring replacement. Diagnosing the freewheel is a quick and straightforward task.

Instructions

    • 1

      Go for a slow, flat ride. Pedal and feel for any "clunks" off the center of the rear wheel. Feel for any restrictive movements off the rear wheel when you stomp hard on the pedals. These indicate the freewheel is beginning to go and in need of replacement or repacking of the bearings.

    • 2

      Unclip the brake, release the wheel lever and pull the rear wheel off the bicycle.

    • 3

      Pinch the freewheel spindle and turn it with your fingers. Feel for dryness or metal grinding as you spin the wheel. This indicates dried-out bearings, which tells you it is time to replace the freewheel or repacked the bearings.

    • 4

      Unscrew the cap on the freewheel using the cone wrench. Pull out the bearing cartridge and look at the steel balls. If you see rust or flat sides to the bearings, replace the freewheel. If the bearings are simply dry, repack them in grease and use until the bearings are flat and rusted out.