The turn signals on the CB1100F use similar rubber stems that eventually dry out, sag, rot, and then break. Repro rubber stems are available, and they're also available for at least some of the Interceptors. I'll have to do some more research, but it's likely that the same stems were used for multiple models. Here's something worth considering:
I worked with a CNC machinist to come up with a solid aluminum, shortened stock for the CB1100F. Here's what it looks like:
[image: 20150628_173456_zps64rsrczj.jpg]
Yes, these are MUCH shorter than the original stalks. When mounted, approx. 1 7/8" of the front OEM stalks show. These new ones only show 3/8" when installed. Mounted with the turn signal, it's barely noticable.
[image: 20150628_184826_zps90kmxifr.jpg]
[image: 20150628_173550_zpskt512qa8.jpg]
Instead of a threaded stud for mounting onto the rear turn signal/brake light bracket, a short 10mm bolt is used.
[image: 20150628_184903_zps5udqlz2j.jpg]
[image: 20150628_173530_zpsgxnx7zzt.jpg]
I like they way they look here, but the real test was on an actual bike. Here they are mounted on my 1100F:
[image: 20150719_144843_zps6okdvuey.jpg]
[image: 20150719_144807_zpspd8esea8.jpg]
These have turned out to be quite popular and I think that the 1100F guys are slowly starting to switch over to them without a second thought. What I like most about these, besides the fact that they won't ever rot or sag, is that they pull the stock turn signals in much closer to the bike giving it cleaner lines.
If there are several models that a similar stem could be used on and there was enough interest, I could have a shortened version designed and made pretty quickly. I have a couple of stock stems kicking around so my CNC guy can get all the measurements for prototyping.
I'd powder coat them satin black like these unless someone specified a different shade or color. And assuming that manufacturing cost is in the same range, they'd be in the $85 - $100 price range for a set of 4 shipped.
Opinions? Any interest?