Smoother Posted July 12, 2017 Share Posted July 12, 2017 I while back I took my KS14C apart to check on the guide spring that protects the wires going into the motor (someone had come off at speed as a result of a short in this area, attributed to an out of position spring) My spring was fine but I discovered that two of the four grub screws*, that hold the pedals on, were missing. Examination of the rust marks on the pedal pins, showed that one of the pins, had been out of position since new. Conclusion, two grub screws were never installed at the factory. If the pins had moved, its possible that one of the pedals might have collapsed during a ride. However, there was no evidence of movement, only that one had settled in a position that was not all the way in, but in, safely enough. If it was easy to get grub screws* I would have simply replaced them, as they are not expensive; but old style hardware stores are a dying breed, and I don't know the size to order them off t'internet. After a few emails and a photograph to the supplier (Electro-sport.de) Ferenc sent me a new set of four, all the way from Germany. I installed them with a dab of copper grease as they are prone to rust as they are mild steel, and get wet when riding through puddles, etc CHECK TO SEE IF YOU HAVE ALL YOUR GRUB SCREWS, AND REINSTALL THEM WITH SOME GREASE TO PREVENT THEM RUSTING IN PLACE. Incidentally, the parts were shipped from 1RadWerkstatt (official KingSong importer for Germany.) So thanks to those two companies for sorting this out for me. * (for non native English speakers) a "grub screw" is the English name for a threaded bolt without a head, which resembles the larvae stage of some winged insects, collectively called grubs. (why its not called a "grub bolt" I have no idea) Link to comment Share on other sites More sharing options...
This topic is now archived and is closed to further replies.