I am looking at purchasing a 1985 K100RT, I use to ride a 1986 many years ago.  I'd sure like to add a real cruise control but on the forum posts I don't see any new info and haven't found any manufacturers that still make these kits?

Thanks,

Vacuum:
http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/ccs100.k.bike/ccs100.k.bike.htm

Electronic:
http://www.kbikeparts.com/classickbikes.com/ckb.tech/0.ckb.tech.files/eleccruise/eleccruise.htm


(The vacuum setup works much better.)

I've done the Audiovox vacuum and Rostra electronic cruise on 2 R bikes. I'll never do the vacuum one again. The electronic Rostra was hands down a better unit. RickG has experience in this stuff.

I've done both on K bikes and the vacuum one is much less jerky. (Yes, I've played with all of the settings.)

I have a Rostra electronic one sitting in my garage that will never be used.

I've installed well over a dozen cruise control units on K75s, K100s, K1100s and a K1.

I have never used an electronic control but use a vacuum one and set it up as per Duck's info and had 6 years of good service.

All the K are designed to receive a mechanical cruise control, a screw with a large head that brakes on the throttle. It was designed for police use, to allow driving with a hand free to make signals in the trafic.
Costs nothing at your BMW dealer, plug&play, effective and reliable.

That is not a cruise control it's a throttle lock (illegal in Australia) and nowhere near as good as a real cruise control.

Thanks for the information and opinions.   I will install one of these as my winter project.  jim

duck wrote:I've done both on K bikes and the vacuum one is much less jerky. (Yes, I've played with all of the settings.)

I have a Rostra electronic one sitting in my garage that will never be used.

I've installed well over a dozen cruise control units on K75s, K100s, K1100s and a K1.

Very, very late to the party, but on the subject of electric vs vacuum actators, did you take using all the available travel of the Rostra, and not have a lot of unused steps into account?

Being digital, it has a limited number of steps, and using them all is key to get the best function.

This is not my own discovery, I got it from the user Redbeard's sublime writeup of how to install the Rostra on a Suzuki Burgman 650.

Redbeard's writeup is so good that the information can be used for any install of cruise control to any vehicle, and I used it to install a EuroCruise with electric actuator to my Burgman 650.

The jerkyness you describe with the Rostra, is exactly what Redbeard wrote would happen, if only using half the available throw.