Re: Cruise Control: Excellent, minimalistic, inexpensive
My 1991 ST1100 came with one that had a crusty spring. Being a bit OCD, I replaced it with one from a local shop...also about $20. I took the opportunity to replace both grips, mounting the throttle lock first on the right side, then trimming the grips flush with the handlebar end. Works fine, except on undulating roads...slow up the hill, faster down.....but it's a lock, not a cruise control.
Keep the provided key handy to tighten the spring/screw tension assembly periodically. It does loosen up.