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Idea for cheap "singulator," will this work?(4 posts)

Idea for cheap "singulator," will this work?timfire
Feb 3, 2003 10:21 AM
What do you all think of this idea for a cheap "singulator."

I had a old rear derailer from a cheap 10-speed. I was thinking I could first detach (or simply cut off) the bottom of it. Then, using just a small bit of cable, I could tighten the cable and then clamp it somehow to achieve the proper left/right angle.

What do yo all think?

--Tim Kleinert
a couple thoughtsBudhaSlug
Feb 3, 2003 10:49 AM
Well, derailleurs do make fine tensioners, but you won't need any cables to do it. All you need is to set your limit screws far enough (you may need to put in longer screws than the originals) to hold the derailleur where you want it. This way you are not relying on any cables and don't have to have a method to tension them. Just start with one limit screw, line it up with the cog and then set the other limit screw all the way down till it locks. The derailleur will now be locked in (for chainline, not tension). One alternative that might also allow you to run fixed (derailleurs will get ripped right off if you try and run them with a fixed gear and do the slightest bit of backpedaling/foot braking) is an idea that someone over on the SS board has used for a while... he put a 22t chainring into his chain... this rotates with the chain and by moving it closer or further from the cog. I haven't tried it and he uses it on a freewheel, but I think it might actually work. You can see a picture of it below.

Peace and Light,
Now that actually looks like it would work, and it looks cool!LC
Feb 3, 2003 11:10 AM
re: Idea for cheap "singulator," will this work?brider
Feb 4, 2003 11:48 AM
Instead of cable, you could use a section of spoke with a nipple.