I'm just learning Sturmey Archer hubs, changed the Mrs rear sprocket to 17t, it didn't have enough purchase on the dropout so needed a tad more chain length and gearing is better now with the motor.
Get the wheel out, look at the sprocket without my glasses and think do I need some sort of weird tool for this? Texted a mate, he said look for the split ring, and then I watched a Youtube video, sprocket off, new one fitted. I fit the wheel back on the bike, get everything just right, then I try to join the little indicator chain that pulls the gears and it's at 90 degrees to where it should be and won't move freely like it should. Wheel off, sprocket off and on again to no avail, fuck around for 10 minutes, end up rotating the sprocket forward which allows the internal pin to slip back into a slot where it now rotates freely.
Fit the wheel, adjust the v-brakes, all looks good then my Mrs looks and asks why the axle alignment washer is facing backwards, it seems to be bottoming out on the end of the dropout. I take a closer look and the wheel looks straight but is a tiny bit off centre. Grrr.
That's not all. We're riding yesterday and the crank bolt flies out of Mrs left crank at about 30km/h. She notices, we pull over, and she actually finds the thing within 5 mins or so in the recently mown grass by the bike path! I bolt check both sets of cranks (lucky had a multi tool that came with the new bike, however it's made of potato and bent a little doing up the crank bolts), these Bafang cranks tighten down more than you expect and seem to have bedded in over the 160km she's done on it.
I go out to buy a stand, t's a bolt on one and my bike has the 40mm spaced holes for it. Get it home, go to attach it, the bolt holes are just holes, no thread, meaning the bolts are too short. I bought the stand about 100m from where I get bolts, of course I had no bolts of the right length and pitch in my stash, so I'm going back today to buy the bolts and some matching nuts.