Über den Einsatz von SunTour Perfect, Pro Compe und New Winner Schraubkranzfreiläufen: Unterschied zwischen den Versionen

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Classic European freewheels have an odd number of ratchet teeth and two pawls directly opposite one another, so only one pawl engages at a time. SunTour New Winner and bodies, and some Perfect and Pro Compe bodies, have an even number of ratchet teeth and two pawls directly opposite one another. As you turn the freewheel slowly backwards, you can hear it go ttick-ttick-ttick as the two pawls engage at (nearly) the same time. Unless the freewheel's bearings are adjusted just short of binding, chain pull rocks the outer body one way, then the other as the wheel turns, making a light clunk-clunk noise. The outer ring of some of these freewheels has a tendency to unscrew, probably worsened by this excess motion. If the clunk-clunk noise starts or gets worse, check right away whether the outer ring is coming loose. Twice I have had one come off completely, dumping all the bearing balls out of the freewheel. Both times, I managed to ride home after screwing the outer ringback on, taking care not to coast.

The freewheel can be restored with about 100 new 1/8" bearing balls -- but as the saying goes, an ounce of prevention is worth a pound of cure. Disassembly of a freewheel usually makes no sense, but this is the exception. Instructions are in our article on rebuilding freewheels. You do not have to disassmble the freewheel completely to make this modification. SunTour new Winner body

===New Winner Freilaufkörper===