Good product, attention must be paid though. Order a couple at a time, they are'nt expensive. Broke one when trying to take a link out of my chain for a smaller cog...should have bought more. Love dealing with JensonUSA though so I'll be ordering more.
The pull up springs are so weak that the ends bend and pull out of the holes in the singleator body before you can even come close to getting enough chain tension to prevent chain slap and skipping. Zip ties work better than these springs!
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