Spicy
#5
Senior Member
so the cog is used to take up the slack on the chain?.... why not just run a shorter chain (if that is the case)...
#6
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I tried a shorter chain and it was too short. The bike has vertical dropouts and unless there is a perfect ratio, there will be no chain length that will work.
#7
Whippersnapper
I'm not brave enough to use it on a fixed gear, but that's kind of cool. I've seen some pictures of old DIY tandems using floating chainrings to tension the sync chain, it apparently works pretty well.
#10
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It is called a ghost ring and it tensions the chain. I used this on this bike because it has vertical dropouts and I can't adjust the rear wheel to tighten the chain. Also on a fixed gear you can't use a normal chain tensioner. If using this setup you probably want to use a brake because I tried to skid and the ghost ring popped out.
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It is called a ghost ring and it tensions the chain. I used this on this bike because it has vertical dropouts and I can't adjust the rear wheel to tighten the chain. Also on a fixed gear you can't use a normal chain tensioner. If using this setup you probably want to use a brake because I tried to skid and the ghost ring popped out.