Originally Posted by
oldfixguy
I wish I new the model but I use the Izumi 1/8 chain that uses the little bolt and nut thing as a master link. Looks a little hokie at first but works like a dream. I carry a dollar store flat head screwdriver in my saddle bag. I get a flat I stop, pull out the driver, drop the chain, fix the flat, line the wheel back up, tighten it down (I use a chaintug so it all lines up the same), screw the chain back on. It's all very mechanical and minimal time spent dealing with the dirty chain. Love it. Plus, getting the length right couldn't be easier - just punch out the right amount of links and the bolt goes in the hole. Putting in a link pin isn't exactly brain surgery but it's nice to not have to deal with that step at all.
I am curious how you get the nut tight with just a screwdriver. Since the link plate on the back side is also threaded, I've found that you must first install and tighten the screw (bolt), and then screw on the nut and tighten it with a small crescent wrench or pliers while holding the chain. Actually, I don't think the square nut is really needed, as there seems to be sufficient number of threads in the link plate to prevent it from stripping out when tightened.