Slight update: They're crap Ill get some pictures soon but because of the great forces theyve been put under, the two bolts on the drive side have actually started to cut, 2 bolt sized trenches into my dropout. Whats more, because they bent, these trenches head to the edge of the dropout meaning that when I do tension them, they just bend more and make the chain slacker So I'm going back to normal "Lollipop" dealios now