Wish someone would "remake" the quamen tensioners.....
A little bit of personal preference and probably height. I don't like any frame with less than a 13.5 CS, longer dropouts allow me to pull my wheel further back to make it "longer", also allows you enough room to push wheel forward to remove chain without breaking it so you don't have to break a chain every single time you change a tire which is especially a pain with a half link chain. You can argue a longer TT and shorter CS is the same as long as the overall length of the bike is roughly the same, but to me it still does not feel right/stable with back wheel tricks. I'm 6 1, and about a 19TT and 13.5 CS feels perfect and makes the bike feel "right" with all my tricks.
Not sure what you mean....been riding these forever and still do without any issues with geo or spacing. In fact several companies now sell extenders which is the same concept. And definitely not 1/2. I'm talking about the older ones, the small version were sh&t. I've tried probably every tensioner available and they are the only ones that meet my requirements of1. Same diameter of peg thus no gap between peg and dropout.2. Do not mess up your axle threads.3. Allow you to pull back wheel very close to end of dropout so you can change tire without breaking chain.
I just bought a nos set of kink tensioners for my bike . Seems like no one is making tensioners anymore