Hi @saneagleAll you need is a small potentiometer on the throttle signal wire. Connect one side to the signal wire coming from the throttle, the other side to ground and the wiper to the controller. A 10k one should work. If you install it at the controller end, nobody will know it's there. You will able to set the maximum speed at whatever you want less than what you already have, as it will only adjust downwards.
You can also make a 6km/hr start up button with one. One side goes to ground, the other side to the red 5v wire via a push button switch, and the wiper goes to the controller as the throttle signal. You can then adjust the potentiometer to set the speed the bike goes when you push the button. I made a cruise control like that before we had decent controllers. I had the potentiometer on my handlebars. I used a three-pole switch to switch from normal throttle to the potentiometer one for cruise. Post #2 here 13 years ago!
Looking for Daahub style micro throttle/cruise control for Cyclezee mk1 kit
I am looking for a Daahub style micro throttle switch to supplement the twist grip throttle on my Cyclezee kit. In an ideal world it would be like cruise control. I am happy with what I guess to be about 70% for cruising into wind or slightly up hill. On the flat or better I am happy providing...www.pedelecs.co.uk
Hmm, I fancy the legal low speed throttle arrangement for bbs01b. I find the throttle useful. I was thinking about going the DVLA low speed moped route but this is cheaper and neater, still legal to ride bridleways and footpaths.
I've ordered the trimpot and a 3 pin extension cable to make up an insertable kit for the throttle cable. I think I understand your description but could you draw a wiring diagram showing trimpot inserted into a cut 3 wire cable pretty please.
If anyone else wants a trimpot smallest order is 10, cheap as chips, so I'll have one spare for me, the rest I can't use.
Happy to share via 2nd class post , they won't arrive from China for a couple of weeks though. Pm me.
