Cyclometers.....
 

Looking at these two. Rampar has the wheel that contacts tire and the other has the screw that turns clicker.
Trying to choose...rubbing on tire or constant clicking (maybe quiet)...I don't know. Does anyone have?
https://cimg9.ibsrv.net/gimg/bikefor...f5dfea1f8e.jpg
https://cimg3.ibsrv.net/gimg/bikefor...543e5e3161.jpg

The clicker type were more common. A lot of people used and liked the clicker ones, maybe you will too. It would annoy me, so I vote for the wheel. However, I don't have one of those and I can't tell you if they work well or not.

I used to have an IKU speedo BITD. Those work quite well. They have a little red plastic wheel the rolls on the tire. After a week or so of tweaking the position of the wheel, I got the odometer on it to match up pretty much exactly with the mile markers on the road where I did my usual after school training ride. IKU speedos come up pretty often on ebay, and they go for cheap. Clearly it is obsolete tech, but I find mechanical speedos and odometers interesting.

BTW, If you have any interest in the IKU make sure you get the light road version that goes to 100kph, not the big chrome 'muscle bike' one.

Did the wheel have any noticeable wear on the tire?

Thank You!

Sure thing.

BTW, I remembered after posting that IKU's pretty much all only went up to 40mph, but if you tried really hard you could wind up the needle to the peg where 60 mph should be. Fun game BITD... ;)

I think I am going to go for this one.....NOS and it is re-settable and appears to be easy to read.
https://cimg9.ibsrv.net/gimg/bikefor...7636fea563.jpg

i had one like that

How was it?

There is a better way! I used to have a Huret Multito. Silent drive with a belt from a pulley that is zip-tied to the hub. I used to use an o-ring for the belt. Rode my first 100-miles (in three days, in a cul de sac) with that thing on a Schwinn Speedster when I was 12.

Although I will say the click-clicker is probably more accurate.

https://cimg4.ibsrv.net/gimg/bikefor...4e3fefb644.jpg

You could probably take the ring-shaped tension spring from an automobile crankshaft oil seal and use that for a longer-lasting belt.
https://cimg6.ibsrv.net/gimg/bikefor...0581e93c3b.jpg

That is pretty neat!

Ended up getting this one!
https://cimg0.ibsrv.net/gimg/bikefor...f87e17341e.jpg

The tire drive cyclometers have the advantage that wheel size doesn't matter. Hub drive cyclometers have to be specific to the wheel size

Yep, true. Thanks for filling that in. Since the OP has the original directions, I'd assume the wheel size would be written down in there.

I'm digging these old cyclometers. I kind of liked the Japanese one because it looked like a toy robot, but this Lucas is way cool too, in a different way. I hope it works better than their electronics.. :lol:

Were there many “speeds” available or only 20, 24, 26, 27? If even that?