You need to know which version of the nail your S5 equipped bike uses. The early nail is threaded, the later version isn’t. They don’t interchange. The idea with the first threaded version was it wouldn’t get lost when the bell crank was removed, but, it would split the retainer if the bike fell on the left side. The sheet metal bell crank only works with that version IIRC.
The sheet metal bell crank has a bad reputation, but, when you modify the left side with the spring, as the bikesmith, (Mark Stonich) recommends, they work just fine. I have two bikes with that setup. I’ve been at it long enough that I’ve converted AW hubs to S5 configuration. There are five bikes here with S5 hubs, organic Sturmey built, and my home brewed S5s. The Bikesmith sells AW and S5 parts and a wonderful cotter press for three piece cranks, just google him.
Your bike has had some changes since it was new. Those reflectors and the gum wall tires don’t belong, and neither does the kickstand. If you compare the stem with the version shown on the second pictured bike, you will see a standard stem has found it’s way into your bike. The Sprite in 1967 used the same beautiful forging that the Superbe uses. Pedals were hit and miss, the best are the rebuildable version, but you don’t always get them. Pictured are my Son and I in the middle of one of perhaps 10 Lake Pepin 3 speed Tours (yes, I cheat and use an S5 Sprite) my Sons Lake Pepin Sprite with an AW modified to S5 configuration, 27” alloy wheels, center pull brakes, and every piece of alloy components I could get my hands on. The last picture is my wife and I on the Munger Trail, just outside of Duluth, MN. Both bikes are S5 equipped.
Nice to find one so compete. Enjoy.
Ted
